Paradyne Network Card 7612 SNMP DSU User Manual

MODEL 7612 SNMP DSU

WITH INTERNAL ETHERNET LAN ADAPTER

USER’S GUIDE

Document No. 7612-A2-GB20-10

November 1997

Download from Www.Somanuals.com. All Manuals Search And Download.

Contents

About This Guide

Document Purpose and Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . vii

Document Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Product-Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

About the DSU

Model 7612 SNMP DSU Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Typical SNMP DSU Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

SNMP Management Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Management Information Base (MIB) Support . . . . . . . . . . . . . . . . . . . 1-4

Rear Panel Interface Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Using the ASCII Terminal Interface

Accessing the ATI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Connecting to the Terminal Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Main Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Screen Format Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

What Affects Screen Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Screen Work Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Navigating the Screens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Keyboard Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Screen Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Switching to the Screen Function Key Area . . . . . . . . . . . . . . . . . . . . . 2-7

Ending an ATI Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

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Contents

Configuring the DSU

Entering Device and System Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Device Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

System Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Identity Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Configuring the DSU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Configuration Option Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Accessing and Displaying Configuration Options . . . . . . . . . . . . . . . . 3-5

Saving Configuration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Security

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Creating a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2

Deleting a Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

ATI Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

Effective Access Level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Controlling SNMP Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Assigning SNMP Community Names and Access Types . . . . . . . . . . 4-6

Limiting SNMP Access through the IP Addresses of

the Managers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

IP Addressing

Selecting an IP Addressing Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

IP Addressing Scheme Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

IMC Connection – Same Subnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Using Routers to Route DSU Management Data . . . . . . . . . . . . . . . . . 5-3

Assigning IP Addresses and Subnet Masks . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Monitoring the DSU

What to Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

DSU LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

System LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Network LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

Port LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5

Status Screen Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

System and Test Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Self-Test Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8

Test Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

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Contents

Network Interface Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Network Performance Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

Ethernet Port Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12

Management Protocol Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Testing

Detecting Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Tests Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Network Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

CSU or External Network Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

DSU or Internal Network Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Send V.54 Up/Down Sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

511 Test Pattern for the Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Data Port Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Local Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

511 Test Pattern for the DTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Lamp Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Ending an Active Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Device Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Messages and Troubleshooting

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Configuring SNMP Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

Device Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3

A Configuration Option Tables

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

System Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Network Interface Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5

Data Port Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-7

Ethernet Port Options Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-9

Terminal Port Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-10

Telnet Session Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-12

SNMP Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-14

General SNMP Management Options . . . . . . . . . . . . . . . . . . . . . . . . . . A-14

SNMP NMS Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-15

SNMP Traps Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-17

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Contents

B Worksheets

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Configuration Worksheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

C MIB Descriptions

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

MIB II – RFC 1213 and RFC 1573 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

System Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Interfaces Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Extension to Interface Table (ifXTable) . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Interface Stack Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7

Interface Test Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

Generic Receive Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-9

IP Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-10

ICMP Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

TCP Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

UDP Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

Transmission Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

SNMP Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-12

RS-232-Like MIB, RFC 1659 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13

Number of RS-232-Like Ports Object . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13

General Port Table Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-13

Asynchronous Port Table Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-14

Synchronous Port Table Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-15

Input Signal Table Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-16

Output Signal Table Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17

Ethernet-Like MIB, RFC 1643 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17

Enterprise MIB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-17

Device Configuration Variable (pdn-common 7) . . . . . . . . . . . . . . . . . . C-18

DDS Interface Specific Definitions, pdn-dds (pdn-interfaces 2) . . . . . C-18

Device Security, pdn-security (pdn-common 8) . . . . . . . . . . . . . . . . . . C-18

Device Traps, pdn-traps (pdn-common 9) . . . . . . . . . . . . . . . . . . . . . . . C-18

Device Control, pdn-control (pdn-common 10) . . . . . . . . . . . . . . . . . . . C-18

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Contents

D Standards Compliance for SNMP Traps

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Trap: warmStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Trap: authentificationFailure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

Traps: linkUp and linkDown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

Traps: enterpriseSpecific . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3

E Cables and Pin Assignments

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1

Terminal Port (EIA-232) Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

DTE Port (V.35) Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3

Standard EIA-232-D Crossover Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4

Standard Null-Modem Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5

10BaseT Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-6

Modular RJ48S DDS Network Interface Connector . . . . . . . . . . . . . . . . . . E-6

F Technical Specifications

Glossary

Index

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About This Guide

Document Purpose and Intended Audience

This guide contains information needed to set up, configure, and operate the

Model 7612 DSU and is intended for installers and operators.

Document Summary

Section

Description

Chapter 1

About the DSU. Describes the DSU features and SNMP

management capabilities with a typical configuration

example.

Chapter 2

Chapter 3

Chapter 4

Chapter 5

Chapter 6

Chapter 7

Chapter 8

Using the ASCII Terminal Interface. Provides instructions for

accessing the user interface and navigating the screens.

Configuring the DSU. Provides procedures for establishing

device and system identification and configuring the DSU.

Security. Presents procedures for creating a login, setting

the effective access levels, and controlling SNMP access.

IP Addressing. Provides details regarding IP addresses with

examples.

Monitoring the DSU. Describes the LEDs, DSU status

screens, and network statistics.

Testing. Provides details about available tests and test

setup.

Messages and Troubleshooting. Provides information on

SNMP traps, device messages, and troubleshooting.

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About This Guide

Section

Description

Appendix A

Configuration Option Tables. Contains all configuration

options, default settings, and possible settings.

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F

Worksheets. Contains all the configuration options, default

settings, and possible settings to use for planning.

MIB Descriptions. Provides an overview of the MIB objects

supported by the DSU.

Standards Compliance for SNMP Traps. Contains SNMP

trap compliance details.

Cables and Pin Assignments. Contains connector and

interface details.

Technical Specifications. Contains physical and regulatory

specifications, clock rates, and LADS connection distances.

Glossary

Index

Defines acronyms and terms used in this document.

Lists key terms, acronyms, concepts, and sections in

alphabetical order.

Product-Related Documents

Document Number

Document Title

7612-A2-GN10

Model 7612 SNMP DSU with Internal Ethernet LAN

Adapter Startup Instructions

To order additional product documentation, refer to Warranty, Sales, and Service

Information on page A at the beginning of this User’s Guide.

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About the DSU

Model 7612 SNMP DSU Features

NMS

SNMP DSU

Router

LAN B

Digital

Data

Network

10BaseT

Connection

LAN A

In-Band

Management

Channel

Router

SNMP DSU

with LAN

Adapter

497-15279

The Model 7612 SNMP DSU provides an interface between the customer

premises equipment (CPE) and a DDS network. Its features include:

Integral LAN Adapter. Connects the DSU directly to an Ethernet LAN.

SNMP (Simple Network Management Protocol) Management. Provides

network management via an industry-standard SNMP management system.

In-band Management Channel (IMC). Provides remote management via

SNMP or Telnet session capability over the DDS network.

ASCII Terminal Interface (ATI). Provides a menu-driven VT100-compatible

interface for configuring and managing the DSU locally or remotely by Telnet

session or external modem.

Local Management. Provides local management via an:

— Asynchronous terminal connection through the Terminal port

— NMS connection through the 10BaseT port

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About the DSU

Remote Management. Provides remote management:

— Using an external modem through the Terminal port

— Using SNMP or Telnet through the 10BaseT port or the IMC

DDS Operation. Operates at 56 kbps and 64 kbps CC (clear channel).

LADS (Local Area Data Set) Operation. Operates as a limited-distance

modem at 56 kbps and 64 kbps full-duplex.

Autorating of Line Rate. Establishes the line rate from the network receive

signal and automatically adjusts to the detected line rate.

Data Port Rates. Automatically adjusts to the DDS or LADS operating rates.

Diagnostics. Provides the capability to diagnose device and network

problems and perform tests, including digital loopbacks, pattern tests, and

self-test.

Device and Test Monitoring. Provides the capability of tracking and

evaluating the unit’s operation, including health and status, and error-rate

monitoring.

Two Customer-Specified Configuration Storage Areas. Allows quick

access to alternate sets of configuration options.

Security. Provides multiple levels of security, which help prevent

unauthorized access to the DSU.

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About the DSU

Typical SNMP DSU Configurations

The following illustration shows a typical LAN/WAN interconnection application for

the DSU. The routers connected to the DSU at each location provide the LAN

interconnection.

Digital

DDS

Data

Router

Network

SNMP

DSU

SNMP

DSU

497-15274

The SNMP DSU can also be used in a frame relay network.

Frame

DDS

Relay

Router

Network

SNMP

DSU

SNMP

DSU

497-15275

Two SNMP DSUs can be connected back-to-back to act as Local Area Data Sets.

Table F-3 in Appendix F, Technical Specifications, shows the maximum distances

for LADS applications.

56 kbps

Router

64 kbps

SNMP

DSU

SNMP

DSU

497-15276-01

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About the DSU

SNMP Management Capabilities

The DSU supports SNMP Version 1, and can be managed by any

industry-standard SNMP manager and accessed using SNMP by external SNMP

managers.

Management Information Base (MIB) Support

The following MIBs are supported:

MIB II (RFC 1213 and RFC 1573) – Defines the general objects for use with

a network management protocol in TCP/IP internets and provides general

information about the DSU. MIB II is backward-compatible with MIB I.

RS-232-Like MIB (RFC 1659) – Defines objects for managing RS-232-type

interfaces (e.g., V.35, RS-422, RS-423, etc.) and supports the synchronous

data port on the DSU.

Ethernet-like MIB (RFC 1643) – Defines objects for managing Ethernet-like

interfaces (e.g., 10BaseT).

Enterprise MIB – Supports configuration, status, statistics, and tests.

Rear Panel Interface Connections

The following illustration shows the physical interfaces of the DSU. Information

about the installation of the DSU is contained in the Model 7612 SNMP DSU with

Internal Ethernet LAN Adapter Startup Instructions.

10BaseT

NETWORK

TERMINAL

POWER

Power

LAN

Network

Modem

DTE

Terminal

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Using the ASCII Terminal

Interface

Accessing the ATI

You can communicate with the ASCII Terminal Interface (ATI) using one of the

following methods:

Direct connection through the Terminal port.

Dialing in through an external modem to the Terminal port.

Telnet session through the 10BaseT port.

Telnet session through the In-band Management Channel (IMC).

NOTE:

Only one ATI session can be active at a time, and another user’s session

cannot be forced to end. To automatically log out a user due to inactivity,

enable the Inactivity Timeout option (see Table A-5, Terminal Port Options,

and Table A-6, Telnet Session Options.

The user interface is idle until activated. Press Return to activate the user

interface. Security can limit ATI access several ways. To setup security or a login

ID, refer to Chapter 4, Security.

Connecting to the Terminal Port

Verify that the settings of the device that you connect to the Terminal port match

these factory-loaded option default settings:

Data rate set to 9.6 kbps.

Character length set to 8.

Parity set to None.

Stop Bits set to 1.

To change the Terminal Port settings, refer to Table A-5, Terminal Port Options.

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Using the ASCII Terminal Interface

Main Menu

Entry to all of the DSU’s tasks begins at the Main Menu screen, which has four

menus or branches.

Select . . .

To . . .

Status

View diagnostic tests, network status of interfaces, statistics, LEDs, and

DSU identity information.

Test

Select and cancel tests for the DSU’s interfaces.

Configuration Display and edit the configuration options.

Control

Control the user interface for device naming and login administration, or

to initiate a power-up reset of the DSU.

MAIN MENU

Status

Test

Configuration

Control

Load Configuration

from . . .

Test

Configuration

Edit/Display

• System

Status

Control

• Network Tests

• Data Port Tests

• Lamp Test

• System and Test Status

• Network Interface Status

• Network Performance Statistics

• Ethernet Port Status

• Management Protocol Statistics

• Display LEDs

• Device Name

• Administer Logins

• Reset Device

• Network

• Data Port

• Abort All Tests

• Ethernet Port

• Terminal Port

• Telnet Session

• SNMP

• Identity

SNMP Options

• General SNMP Management

• SNMP NMS Security

• SNMP Traps

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Using the ASCII Terminal Interface

Screen Format Types

Three types of screen formats are available on the ATI.

Use the screen format . . . To . . .

Menu selection

Input

Display a list of available functions for user selection.

Add or change information on a screen.

Input or edit fields that have an Underline in the field value

or selection. See Screen Work Areas on page 2-4

Display

Display configuration information and results from

performance and DSU-specific tests.

Display-only fields that have no underline in the field value.

What Affects Screen Displays

What appears on the screens depends on the:

Current configuration – How the DSU is currently configured.

Effective security access level – An access level that is typically set by the

system administrator for each interface and each user.

Data selection criteria – What you entered in previous screens.

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Using the ASCII Terminal Interface

Screen Work Areas

There are two user work areas:

Screen area – Provides the menu path, access level, menus, and input fields

above the dotted line.

The menu path appears as the first line on the screen. In this manual, the

menu path is presented as a menu selection sequence with the names of the

screens:

Main Menu → Configuration → Load Configuration From →

Edit →Terminal Port

Screen function key area – Provides functions available below the dotted

line based upon screen selection and access level. See Switching to the

Screen Function Key Area on page 2-7.

Menu Path

main/configuration/edit/term

Device Name: Node A

Model: 7612

TERMINAL PORT OPTIONS

Data Rate (Kbps):

Character Length:

Parity:

9.6

None

Stop Bits:

Monitor DTR:

Enable

Input Fields

Enable

Level 1

Enable

Port Access Level:

Inactivity Timeout:

Disconnect Time(minutes):

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Screen

Function

Keys

Ctrl-a to access these functions, ESC for previous menu

Save

MainMenu

Exit

Select: 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4

No Signal

Field Value

Choices and

ATI messages

System Alarm

Messages

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Using the ASCII Terminal Interface

Navigating the Screens

You can navigate the screens by:

Using keyboard keys

Using screen function keys

Switching between the two screen work areas

Keyboard Keys

Use the following keyboard keys to navigate within the screen.

To . . .

Press . . .

Move cursor between the screen area and the screen function

keys area below the dotted line at the bottom of the screen

Ctrl-a

Return to the previous screen

Esc

Tab

Move cursor to the next field on the screen

Accept entry or display valid options on the last row of the screen Return (Enter)

when pressed before entering data or after entering invalid data

Move cursor one position to the left

Ctrl-k

Select the next valid value for the field

Spacebar

Delete character that the cursor is on

Delete (Del)

Up Arrow or Ctrl-u

Move cursor up one field within a column on the same screen

Move cursor down one field within a column on the same screen Down Arrow or Ctrl-d

Move cursor one character to the right if in edit mode

Move cursor one character to the left if in edit mode

Right Arrow or Ctrl-f

Left Arrow or Ctrl-b

Ctrl-l

Redraw the screen display, clearing information typed in but not

yet entered

" Procedure

To make a menu or field selection:

1. Press the tab key or the arrow keys to position the cursor on a menu or field

selection. Each selection is highlighted as you press the key to move the

cursor from position to position.

2. Press Return. The selected menu or screen appears.

3. Continue Steps 1 and 2 until you reach the screen you want.

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Using the ASCII Terminal Interface

The current setting or value appears to the right of the field name. The valid

choices for the field are displayed in the screen function area. You can enter

information into a selected field by typing in the first character or characters of a

field value or command.

If a field is blank and the Field Values screen area displays valid selections, press

the spacebar and the first valid value for the field will appear. Continue pressing

the spacebar to scroll through other valid values.

Screen Function Keys

All screen function keys located below the dotted line operate the same way

(upper- or lowercase) throughout the screens.

For the screen

function . . .

Select . . . And press Return to . . .

Clear

C or c

L or l

Clear status messages for one-time events.

ClrStats

Delete

Exit

Clear statistics and refresh the screen.

Delete data.

E or e

M or m

N or n

D or d

U or u

R or r

S or s

Terminate the async terminal session.

Return to the Main Menu screen.

Enter new data.

MainMenu

New

PgDn

Display the next page.

PgUp

Display the previous page.

Update screen with current information.

Reset an active Monitor 511 test counter to zero.

Save information.

Refresh

ResetMon

Save

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Using the ASCII Terminal Interface

Switching to the Screen Function Key Area

Selecting Ctrl-a allows you to switch between the two screen work areas to

perform all screen functions.

" Procedure

To access the screen function area below the dotted line:

1. Press Ctrl-a to switch from the screen area to the screen function key area

below the dotted line. The available selections for the first input field appear

on the last line as shown below.

2. Select either the function’s designated (underlined) character or press the tab

key until you reach the desired function key.

Example:

To save the changes you have made on this screen, enter s or S (Save).

3. Press Return. The function is performed.

4. To return to the screen area above the dotted line, press Ctrl-a again.

main/configuration/edit/term

Device Name: Node A

Model: 7612

TERMINAL PORT OPTIONS

Data Rate (Kbps):

Character Length:

Parity:

9.6

None

Stop Bits:

Monitor DTR:

Enable

Level 1

Enable

Port Access Level:

Inactivity Timeout:

Disconnect Time(minutes):

––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

Ctrl-a to access these functions, ESC for previous menu

MainMenu

Exit

Save

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Using the ASCII Terminal Interface

Ending an ATI Session

Use the Exit function key from any screen to terminate the session.

" Procedure

To end an ATI session:

1. Press Ctrl-a to go to the screen function key area below the dotted line.

2. Save changes if you have altered your configuration.

3. Select Exit and press Return. The User Interface Idle screen appears.

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Configuring the DSU

Entering Device and System Information

Use the Device Name screen to input DSU device and SNMP system entries. To

access the Device Name screen, follow this menu selection sequence:

Main Menu → Control → Device Name

main/control/device name

Device Name:

Model: 7612

DEVICE NAME

Device Name:

System Name:

NE815378

lllQJ98-001

Clear

System Location: Bldg. A412, 2nd Floor, Left cabinet

System Contact: Joe Smith 800-555-5555 pager 888-555-5555

Ctrl-a to access these functions, ESC for previous menu

Save

MainMenu

Exit

Any printable ASCII characters are valid entries for all the Device Name screen

inputs. ASCII printable characters include:

Numeric 0–9

Upper or lower case A–Z

Space

All standard keyboard symbols

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Configuring the DSU

Device Name

The Device Name entry appears on all ATI screens. The input on this screen is

displayed on the Identity screen. Refer to Identity Information on page 3-3.

System Fields

The three System entry fields are alphanumeric and provide 127 characters for

each field. The System entries appear on the Identity display as shown in the

next section. The SNMP System entry fields are:

System Name: The general SNMP system name.

System Location: The physical location of the SNMP-managed device.

System Contact: Identification information, such as contact name, phone

number, or mailing address.

Press Ctrl-a to switch to the screen function key area below the dotted line.

Select Save and press Return. When Save is complete, Command Complete

appears at the bottom of the screen.

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Configuring the DSU

Identity Information

The Identity screen provides identification information about the DSU.

To access the Identity screen, follow this menu selection sequence:

Main Menu → Status → Identity

main/status/identity

Device Name: NE815378

Model: 7612

IDENTITY

Press arrow

keys to view

additional

System Name:

lllQJ98-001

System Location: Bldg. A412, 2nd Floor, Left cabinet

System Contact: Joe Smith 800-555-5555 pager 888-555-5555

Serial Number:

Model Number:

1234567

7612-A1-201

01.00.00

information

Software Revision:

Hardware Revision:

Ethernet MAC Address:

2048-80A

00:E0:39:00:00:00

Ctrl-a to access these functions, ESC for previous menu MainMenu Exit

To view information on the three System entries beyond the 40 characters on the

screen, place the cursor on the first or last character and press the left or right

arrow.

In addition to the System information entered on the Device Name screen, the

Identity screen shows:

Serial Number: The unique serial number of the unit.

Model Number: The model number of the unit.

Software Revision: The revision level of the firmware in the unit.

Hardware Revision: The revision level of circuit card assembly.

Ethernet MAC Address: The Media Access Control address of the Ethernet

port, assigned at the time of manufacture.

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Configuring the DSU

Configuration option settings determine how the DSU operates. Use the DSU’s

Configuration branch to display or change configuration option settings.

Configuration Option Areas

The DSU is shipped with factory settings in all configuration option areas. You

can find default information by:

Referring to Appendix A, Configuration Option Tables, or Appendix B,

Worksheets.

Accessing the Default Factory Configuration branch of the DSU menu.

The DSU offers four sets of configuration option settings located in the following

areas. The first three sets match the Default Factory Configuration options set

until modified and saved by the user.

If the factory default settings do not support your network’s configuration,

customize the configuration options for your application.

Configuration Option Area Configuration Option Set

Current Configuration

The DSU’s active set of configuration options.

Use to set up and store a set for future use.

Use to set up and store a second set for future use.

Customer Configuration 1

Customer Configuration 2

Default Factory Configuration A read-only configuration area containing the

factory-default configuration options.

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Configuring the DSU

Accessing and Displaying Configuration Options

To display the configuration options, you must first copy one configuration option

set into the edit area.

" Procedure

To load a configuration option set into the configuration edit area:

1. Follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From

2. Select one of the four configuration option areas listed in the table in

Configuration Option Areas on page 3-4.

3. Press Return. The selected configuration option set is loaded and the

Configuration Edit/Display menu screen appears.

No configuration edits are allowed when the effective access level is 2 or 3.

Configuration is read-only and allows viewing only of configuration option

settings. If the effective access level is not 1:

The last line of the Load Configuration From screen reads:

Access Level is n, Configuration is read-only

The Save prompt will not appear on any screens.

Refer to Chapter 4, Security.

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Configuring the DSU

Saving Configuration Options

When changes are made to the configuration options, the changes must be

saved to take effect. The Save key and Save Configuration To screen appear

when the user has an effective access level of 1. All other effective access levels

have read-only permission.

" Procedure

To save configuration options changes:

1. Press Ctrl-a to switch to the screen function key area below the dotted line.

2. Select Save and press Return. The Save Configuration To screen appears.

3. Select one of the three configuration option areas on the screen and press

Return. When Save is complete, Command Complete appears in the

message area at the bottom of the screen.

NOTE:

If you attempt to leave the edit session without saving your changes, a Save

Configuration screen appears requiring a Yes or No response.

If you select . . .

Then the . . .

Yes

Save Configuration To screen appears.

Main Menu appears and changes are not saved.

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Security

Overview

The DSU provides several ways to control access to the ATI through option

settings. You can:

Enable the Login Required option to require a Login ID for the:

— Terminal Port

— Telnet Session via the IP interfaces (the 10BaseT port or the IMC)

Limit the access using:

— Port Access Level option of 1, 2, or 3 for the Terminal port

— Session Access Level option of 1, 2 or 3 for the Telnet Session

Refer to Table 4-1, Effective Access Levels.

Disable the access using:

— In-Band Management Channel Rate (bps) option for the IMC

— Ethernet Port Use option

— Telnet Session option

Refer to ATI Access on page 4-3.

SNMP security is handled through Community Names with access levels and

IP address validation. Refer to Controlling SNMP Access on page 4-6.

Preventing access to the ATI by setting the In-Band Management Channel Rate

or Ethernet Port Use options to Disable also inhibits SNMP management over

those interfaces.

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Security

Creating a Login

Logins apply to Terminal port access and Telnet access to the ATI. Six login

ID/password combinations are available. Each Login ID and Password must be

unique and include an access level.

For additional information regarding the ATI access using the Login Required

option, refer to ATI Access on page 4-3.

" Procedure

To create a login record:

1. Follow this menu selection sequence:

Main Menu → Control → Administer Logins

2. Press Ctrl-a to switch to the screen function key area below the dotted line.

3. Select New and press Return.

4. Create the login by entering the following fields.

On the Administer

Logins screen, for the . . .

Enter . . .

1 to 10 ASCII printable characters

Level 1, Level 2, or Level 3

Password

Access Level

NOTE:

Assign at least one Level 1 Access Level. Full access is necessary to

make configuration option changes and administer logins. If there is no

effective Access Level 1, refer to Device Reset in Chapter 7, Testing.

5. Press Ctrl-a to switch to the screen function key area below the dotted line.

Select Save and press Return.

6. When Save is complete, Command Complete appears at the bottom of the

screen. Select:

— New to add another login record

— MainMenu to go to the Main Menu

— Exit to end the ATI session

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Security

Deleting a Login

" Procedure

To delete a login record:

1. Follow this menu selection sequence:

Main Menu → Control → Administer Logins

2. Press Ctrl-a to switch to the screen function key area below the dotted line.

3. Select PgUp or PgDn and press Return to page through login pages/records

until you find the one to be deleted.

4. Once the correct record is displayed, select Delete and press Return.

5. To complete the delete action, select Save and press Return.

When the deletion is complete, Command Complete appears at the bottom of

the screen. The number of login pages/records reflects one less record, and

the record following the deleted record appears.

ATI Access

Access to the ATI is available through either the Terminal port or a Telnet session.

Access to the ATI through the Terminal port can be limited. Refer to Table A-5,

Terminal Port Options, to:

Enable Login Required.

Assign a Port Access Level of 1, 2, or 3.

The ATI can be accessed remotely through a Telnet Session via either the

10BaseT port or the IMC. The DSU provides several methods for limiting access

to the ATI through a Telnet session.

Refer to Table A-6, Telnet Session Options, to:

— Enable Login Required.

— Assign a Telnet Session Access Level of 1, 2, or 3.

— Disable Telnet access completely.

To prevent the 10BaseT port and IMC from supporting a Telnet session you

can also:

— Set the Ethernet Port Use option to Disable. Refer to Table A-4, Ethernet

Port Options.

— Disable the IMC using the In-Band Management Channel Rate (bps)

option. Refer to Table A-2, Network Interface Options.

Preventing access to the ATI by setting the In-Band Management Channel Rate

or Ethernet Port Use options to Disable also inhibits SNMP management over

those interfaces.

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Security

Effective Access Level

The ATI effective access level is the more restrictive of:

Port/Session access level, or

The Access level associated with the Login ID.

For example, if a login ID is created with an Access Level 1 and the Terminal Port

is set for a Port Access Level of 2, the effective access level to the ATI is 2.

Table 4-1. Effective Access Levels

Effective

ATI Access to Menu Functions

Access Level 1 Access Level 2 Access Level 3

Status

Full Access

Read-Only

No Access

Read-Only

No Access

Read-Only

No Access

Test

Configuration

Control

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Security

When user access to the ATI is attempted through the Terminal port or a Telnet

session, the ATI response is based on the Login Required option and the

availability of the ATI.

Table 4-2. ATI Access Conditions

If access to the ATI

is through . . .

Then . . .

What to do now?

The Terminal port

with –

The Main Menu screen

appears.

Select a menu option to begin your

session.

H The Login Required

option set to

Disable (see

Table A-5)

The Terminal port

with –

You are prompted for a

If Invalid Password appears,

re-enter the password. After three

tries with an invalid password, the

user is logged off. Contact the

system administrator.

H The Login Required

option set to Enable

(see Table A-5)

The Main Menu screen

appears if the login ID is

not configured yet.

Select a menu option to begin your

session.

The Terminal port and User Interface Already

Try again later. When the ATI is

the ATI is already in

use via Telnet

In Use message appears available, the message User

with the active user’s IP

address and Login ID.

Interface Idle appears.

A Telnet session and

the ATI is currently in

use via the Terminal

port

Connection Refused

message appears. The

DSU allows only one

connection at a time.

Try again later.

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Security

Controlling SNMP Access

There are three methods for limiting SNMP access.

Disable the SNMP management option. Refer to Table A-7, General SNMP

Management Options.

Assign SNMP community names and access types. The DSU supports

SNMP Version 1, which provides limited security through the use of

community names.

Limit SNMP access through validation of the IP address of each allowed

SNMP manager.

Assigning SNMP Community Names and Access Types

The DSU can be managed by an SNMP manager supporting SNMP. The

community name must be supplied by an external SNMP manager accessing an

object in the MIB.

To define SNMP community names, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

SNMP → General SNMP Management

Refer to Table A-7, General SNMP Management Options, to:

Enable SNMP Management.

Assign the SNMP community names of the SNMP Managers that are allowed

to access the DSU’s Management Information Base (MIB).

Specify Read or Read/Write access for each SNMP community name.

Limiting SNMP Access through the IP Addresses of the Managers

The DSU provides an additional level of security through validation of the

IP addresses.

The SNMP Management option must be enabled. To control SNMP access with

IP addresses, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

SNMP → SNMP NMS Security Options

Refer to Table A-8, SNMP NMS Security Options. The SNMP access can be

limited by:

Enabling NMS IP address validation to perform validation checks on the

IP address of an SNMP management system attempting to access the DSU.

Specifying read or read-write access for each NMS authorized to access the

unit.

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IP Addressing

Selecting an IP Addressing Scheme

You can select from many IP (Internet Protocol) addressing schemes to provide

SNMP NMS connectivity. Review the following information in preparation for

selecting an IP addressing scheme.

You can assign IP addresses to the:

— 10BaseT port

— IMC

When the IMC Routing Information Protocol option is set to Proprietary,

IP routing information is automatically passed between interconnected DSUs

from the network side.

A static route to the DSU that is managed over the IMC must be set in the

routing table of the NMS host or local router.

Each DSU’s internal routing table supports a maximum of 20 routes, even

though a single route is all that is needed to reach every device on a subnet.

Any legal host address is allowed for a given subnet; the address choice

within the subnet is completely arbitrary.

The 48-bit MAC (Media Access Control) address of the 10BaseT port does

not govern the port’s 32-bit IP address.

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IP Addressing

IP Addressing Scheme Examples

Management of IP addressing is based upon individual IP addresses assigned to

each interface. The IP interfaces for the unit are the:

Ethernet port: See Table A-4, Ethernet Port Options.

IMC: Set the In-Band Management Channel Rate (bps) to 1600, 4000, or

8000 bps; see Table A-2, Network Interface Options.

NOTE:

Do not assign IP addresses without the assistance of the parties who

determine the IP addressing scheme used for your organization.

The following illustrations and examples apply to IP management traffic only.

The subnet mask for each device in these examples is 255.255.255.000.

IMC Connection – Same Subnet

In this example, the DSU with the IMC IP address of 135.18.2.1 is connected to:

The NMS at the central site, via the 10BaseT port

A remote DSU through the proprietary IMC

The IMC is enabled (the rate is set to 1600, 4000, or 8000). See Table A-2,

Network Interface Options.

The Default Gateway Address is 000.000.000.000. See Table A-4, Ethernet Port

Options.

NOTE:

Interconnected DSUs will automatically pass routing information between

each other using a proprietary protocol. However, a static route to

subnet 135.18.2.0 must be set in the routing table of the NMS Host.

Router

7610

7612

135.18.40.1

Ethernet

DDS

Network

IMC

IMC IP

Address:

135.18.2.2

Subnet 135.18.40.0

Ethernet Port

IMC IP

Address:

135.18.2.1

IP address:135.18.40.3

Subnet 135.18.2.0

Router

97-15308

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IP Addressing

Using Routers to Route DSU Management Data

In this example, the DSUs:

Receive their management data through the 10BaseT port connection to a

hub.

Do not route the data between themselves. (The IMC is disabled. See

Table A-2, Network Interface Options.) Routers route management data for

the connected DSUs using the management data path between the routers.

The NMS or Telnet host can be on the same subnet as the DSU, or it can connect

to the subnet the DSU is on through a router. If it uses a router, the DSU needs to

have a gateway router defined. The Default Gateway Address in the example is

135.18.4.1. See Table A-4, Ethernet Port Options.

Subnet 135.18.5.0

Subnet 135.18.1.0

Ethernet Port

IP Address:

135.18.5.2

135.18.1.2

135.18.1.1

Router

Frame

Relay

Network

135.18.4.1

135.18.5.1

Router

Ethernet Port

IP Address:

135.18.4.2

Subnet 135.18.4.0

97 -15309

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IP Addressing

Assigning IP Addresses and Subnet Masks

Once you select an IP scheme, assign address(es) to the DSU.

If using the . . .

Then assign the . . .

10BaseT port as a management interface

10BaseT port IP address and subnet

mask. Refer to Table A-4, Ethernet Port

Options.

IMC

IP address and subnet mask. Refer to

Table A-2, Network Interface Options.

The SNMP NMS Security Options screen provides options to perform security

checking on the IP address of the SNMP management system attempting to

communicate to the DSU. Refer to Table A-8, SNMP NMS Security Options.

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Monitoring the DSU

What to Monitor

This chapter presents information on how to access and monitor DSU status and

performance statistics on the DDS network. You can monitor DSU operations by

viewing:

LEDs on the Display LEDs screen or the DSU’s front panel

System and Test Status screen

Highest priority Health and Status message on the right on the last line of all

screens

Network Interface Status screen

Network Performance Statistics screen

Ethernet Port Statistics screen

Management Protocol Statistics screen

SNMP traps and other information reported by your NMS via SNMP MIB

objects

Refer to Appendix C, MIB Descriptions, for the SNMP MIBs supported by the

DSU.

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Monitoring the DSU

DSU LEDs

The DSU’s 12 LEDs are organized in three groups:

System LEDs display the status of the unit

Network LEDs provide the status of the network interface

Port LEDs display the activity on the user data (DTE) port

7612 SNMP DSU

TS (105)

TXD (103R) XD (104R) CTS (106D) TR (108)

ALARM TEST

OOS

OOF

System

Network

Port

56/64K

97-15273

The status of the DSU LEDs can be viewed on the Display LEDs screen, both

locally and remotely.

To view the LED status screen, follow this menu selection sequence:

Main Menu → Status → Display LEDs

main/status/leds

Device Name:

Model: 7612

DISPLAY LEDS

SYSTEM

ALARM TEST

NETWORK

DTE

RXD RTS CTS DTR

DM OOS OOF NS

TXD

ESC for previous menu MainMenu Exit

Refresh

When viewed via the ATI, the status display screen is updated approximately

every 5 seconds. Use Refresh to obtain a current status of all LEDs.

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Monitoring the DSU

System LEDs

OK:

ON – DSU is operational.

OFF – DSU has detected a system failure, or there is

no power.

ALARM:

ON – DSU has detected an alarm condition locally or from

the network. Refer to Chapter 8, Messages and

Troubleshooting.

TEST:

ON – Test in progress. Test can be initiated locally, remotely,

or from the network. Includes power-up self-test.

System

Network

Port

496-15062

red

green

yellow

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Monitoring the DSU

Network LEDs

DM – Data Mode:

ON – DSU (DDS network interface) is sending or

receiving data, or is in DMI condition

(all 1’s being received).

OFF – DDS network interface is receiving CMI codes.

OOS – Out of Service:

ON – The network has notified the DSU that

the remote unit is out of service.

Refer to Table 6-1, Health and Status

Messages.

OOF – Out of Frame:

ON – DSU is detecting an out of frame

condition. Refer to Table 6-1, Health

and Status Messages.

NS – No Signal:

ON – DDS network interface detects

no signal. Refer to Table 6-1,

Health and Status Messages.

System

Network

Port

496-15062

red

green

yellow

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Monitoring the DSU

Port LEDs

System

Network

Port

496-15062

red

green

yellow

TXD – Transmitted Data:

OFF

– Receiving all 0’s from the DTE.

– Receiving all 1’s from the DTE.

Blinking – User data is being transferred.

RXD – Received Data:

OFF

– Sending all 1’s to the DTE.

– Sending all 0’s to the DTE.

Blinking – User data is being transferred.

RTS – Request to Send:

ON – DTE is activating a control signal to

indicate readiness to transmit data.

CTS – Clear to Send:

ON – DSU is activating a control signal to

indicate to the DTE that it can start

sending data.

DTR – Data Terminal Ready:

ON – DTE is activating a control signal to

indicate readiness for operation.

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Monitoring the DSU

Status Screen Commands

The status screens appear with the cursor in the function area below the dotted

line. To update the information displayed, select Refresh and press Return.

The System and Test Status screen provides a Clear command. Select Clear and

press Return to clear status messages for one-time events.

Statistics screens provide a ClrStats command. Select ClrStats and press Return

to clear all statistics and refresh the screen. ClrStats is not available for an

Access level of 3.

System and Test Status

Status is a branch of the ATI main menu. From Status, the System and Test

Status screen is available and has three sections:

Health and Status – Displays messages in priority order (highest to lowest).

Refer to Table 6-1, Health and Status Messages.

Self-Test Results – Results of the Diagnostic test run on the device itself.

Refer to Table 6-2, Self-Test Results Messages.

Test Status – Currently active tests. Refer to Table 6-3, Test Status

Messages.

To view Health and Status information, follow this menu selection sequence:

Main Menu → Status → System and Test Status

main/status/system

Device Name: Node A

Model: 7612

SYSTEM AND TEST STATUS

SELF–TEST RESULTS

HEALTH AND STATUS

TEST STATUS

Cross Pair Detection

No Signal hhh:mm:ss

Device Fail

Memory Fail

Passed

No Test Active

CSU Loopback Active

Out Of Service hhh:mm:ss

Out Of Frame hhh:mm:ss

Excessive BPVs hhh:mm:ss

In–Band Fram. Err. hhh:mm:ss

User Data Port DTR Off

In–band Mgmt Channel Fail

Device Fail yyyyyyyy

Ethernet Link Down

Net-initiated CSU LB Active

DSU Loopback Active

Net-initiated DSU LB Active

V.54–initiated DSU LB Active

Local Loopback Active

Sending 511 on Port

Monitoring 511 on Port

Sending 511 on Network

Monitoring 511 on Network

Lamp Test Active

DSU Operational

–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––

ESC for previous menu MainMenu Exit

Refresh

Clear

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Monitoring the DSU

The following messages appear in the first column of the System and Test Status

screen. The messages are listed from high to low priority on the screen but in

alphabetical order in Table 6-1. The highest priority Health and Status message

also appears on the bottom right of all ATI screens.

Table 6-1. Health and Status Messages (1 of 2)

Message

What Message Indicates

What To Do

Cross Pair

Detection

The DDS Receive (RX) and

Transmit (TX) pairs are

crossed on the network

interface. Alarm LED is on.

Reverse the RX and TX pair at the

punchdown block or other

termination point.

Device Fail

yyyyyyyy

An internal error has been

detected by the operating

software. yyyyyyyy indicates

the 8-digit hexadecimal failure

code.

1. Provide the 8-digit failure code

shown (yyyyyyyy) to your service

representative.

2. Use the Clear command to clear

the message.

3. Reset the DSU to clear the

condition and message.

DSU Operational The DSU is functioning

properly and there are no

No action required.

status messages to display.

Ethernet Link

Down

The DSU detects no electrical 1. Verify that the Ethernet cable is

activity on the 10BaseT port.

securely attached at both ends.

2. Contact your LAN support

technician if problem persists.

Excessive BPVs

hhh:mm:ss

Data rates do not match or

network trouble causing

bipolar violations. Alarm LED

is on and Network

1. Verify that the network cable is

securely attached at both ends.

2. Contact network provider if

problem persists.

Performance Statistics are

active.

3. Check line rate.

In-Band Fram Err The IMC communication

1. Verify that the remote unit has

IMC set at the same rate.

hhh:mm:ss

between the local and remote

DSU is not working.

2. Contact network provider if

problem persists.

In-Band Mgmt

Channel Fail

The IMC is not operational.

Enable the IMC on the remote unit.

No Signal

hhh:mm:ss

No signal is being received.

Local DSU network problem.

The Alarm and NS LEDs are

on and Network Performance

Statistics are active.

1. Verify that the network cable is

securely attached at both ends.

2. Contact network provider.

hhh:mm:ss indicates the amount of time the condition has existed in hours, minutes,

and seconds. When the maximum time has been exceeded, 255:59:59+ appears.

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Monitoring the DSU

Table 6-1. Health and Status Messages (2 of 2)

Message

What Message Indicates

What To Do

Out of Frame

hhh:mm:ss

DSU is detecting an out of

frame condition, associated

with:

1. Verify that the line rate matches

the configured rate.

2. Contact network provider.

H Receiving out of frame

code from the network.

H DSU detecting out of frame

errors with 64 kbps CC

data rate.

H DSU unable to synchronize

local receiver circuit with

line signal.

Out of Service

hhh:mm:ss

DSU is receiving out of

service code from the

network for the remote unit.

The Alarm and OOS LEDs

are on and Network

Performance Statistics are

active.

1. Verify that the remote site is in

service.

2. Contact network provider.

User Data Port

DTR Off

The DTE is not ready to

transmit or receive data. This

message will not appear

unless Monitor DTR is

enabled.

1. Check on the DTE status. Verify

that the DTE is powered up and

asserting DTR.

2. Disable Monitor DTR.

hhh:mm:ss indicates the amount of time the condition has existed in hours, minutes,

and seconds. When the maximum time has been exceeded, 255:59:59+ appears.

Self-Test Results

The results of the last power-up or reset self-test appear in the middle column of

the System and Test Status screen.

Table 6-2. Self-Test Results Messages

Message

What Message Indicates

What To Do

1. Reset the DSU and try again.

Device Fail

One or more of the DSU’s integrated

circuit chips has failed device-level

testing.

2. Use the Clear command to

clear the message.

3. Call your service

Memory Fail DSU failed memory verification.

representative for assistance if

the message reappears.

Passed

The DSU has been plugged in or

reset and has passed the diagnostic

test. There are no other status

messages.

No action required.

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Monitoring the DSU

Test Status Messages

The Test Status Messages in Table 6-3 appear in the right column of the System

and Test Status screen. For additional information on loopbacks, refer to

Table 7-1, Loopbacks.

Table 6-3. Test Status Messages

Test Status Message Meaning

CSU Loopback Active A CSU Loopback toward the network is currently active. Only

applies to a test initiated by the user via the ATI or the NMS.

DSU Loopback Active A DSU Loopback toward the network is currently active. Only

applies to a test initiated by the user via the ATI or the NMS.

Lamp Test Active

The Lamp Test is active, causing the LEDs on the front panel to

light.

Local Loopback Active A local loopback toward the DTE is currently active.

Monitoring 511 on

Network

DSU is monitoring a 511 test pattern on the network interface.

Monitoring 511 on Port DSU is monitoring a 511 test pattern on the DTE port.

Net-initiated CSU LB

Active

A CSU Loopback initiated by the network is currently active.

H If the network service is 56 kbps, the network loopback is

non-latching. A non-latching loopback ends when the

network activation codes stop.

H If the network service is 64 kbps CC, the network loopback

is latching.

Net-initiated DSU LB

Active

A DSU Loopback initiated by the network is currently active.

H If the network service is 56 kbps, the network loopback is

non-latching. A non-latching loopback ends when the

network activation codes stop.

H If the network service is 64 kbps CC, the network loopback

is latching. This condition can only occur when the Network

Interface option Network-initiated DSU Loopback (64K CC)

is enabled. Refer to Table A-2, Network Interface Options.

No Test Active

Status message, indicating no local, remote, or network test in

progress.

Sending 511 on

Network

A 511 test pattern is being sent over the network interface.

Sending 511 on Port

A 511 test pattern is being sent over the DTE port.

V.54-initiated DSU LB A DSU loopback is active that was initiated by the detection of

Active

a V.54 sequence originated by the remote unit. This condition

can only occur when V.54 Initiated DSU Loopback is enabled.

Refer to Table A-2, Network Interface Options.

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Monitoring the DSU

Network Interface Status

To view the Network Interface Status, follow this menu selection sequence:

Main Menu → Status → Network Interface Status

main/status/interface

Device Name: Node A

Model: 7612

NETWORK INTERFACE STATUS

Line Rate (Kbps):

Loop Loss (dB):

64CC

–25

ESC for previous menu MainMenu Exit

Refresh

Table 6-4 describes the fields on the Network Interface Status screen.

Table 6-4. Network Interface Status Screen Contents

Field

Status

What the Status Indicates

Line Rate (Kbps)

64CC

64LADS

Autobaud

Line rate on the network interface.

Autobaud indicates the DSU is

trying to determine the network line

rate. If this does not change to a

numeric value within about

25 seconds, you may need to set

the Line Rate manually.

No Signal

0 to –65

No signal can be detected over the

network interface.

Loop Loss (dB)

Amount of loop loss – loss of signal

strength of the receive line signal

from the local loop, measured in

decibels.

Inoperative

The line may be disconnected.

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Monitoring the DSU

Network Performance Statistics

To view the Network Performance Statistics, follow this menu selection sequence:

Main Menu → Status → Network Performance Statistics

main/status/performance

Device Name:

Model: 7612

NETWORK PERFORMANCE STATISTICS

No Signal Count: 101920

26:33:08

0:00:00

8:53:49

Out of Service Count:

Out of Frame Count:

Excessive BPV Count:

Invalid BPV Count:

621

99830

87409

144:28:11

ESC for previous menu MainMenu Exit

Refresh

ClrStats

Table 6-5 describes the fields on the Network Performance Statistics screen.

Table 6-5. Network Performance Statistics Screen Contents

Label

What the Field Indicates

No Signal Count

Out of Service Count

Out of Frame Count

The number of occurrences of a No Signal condition.

The number of occurrences of an Out of Service condition.

The number of occurrences of an Out of Frame condition.

Excessive BPV Count The number of occurrences of an Excessive Bipolar Violation

(BPV) condition. This is defined as at least one Invalid BPV

every 20 ms for a 2-second period.

Invalid BPV Count

The total number of Invalid BPVs detected.

All counts show the number of occurrences since the last reset of the counters. In

the last column, hhh:mm:ss indicates the amount of time the condition has

existed in hours, minutes, and seconds. When the maximum time has been

exceeded, 255:59:59+ appears.

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Monitoring the DSU

Ethernet Port Status

To view the Ethernet (10BaseT) Port Status, follow this menu selection sequence:

Main Menu → Status → Ethernet Port Status

main/status/ethernet

Device Name: Node A

Model: 7612

ETHERNET PORT STATUS

Port Use:

IP Address:

Subnet Mask:

802.3

000.000.000.000

Default Gateway Address: 000.000.000.000

Ethernet MAC Address:

00:E0:39:00:00:00

Frames Transmitted:

Frames Received:

0000000000

Errored Frames:

Excessive Collisions:

Carrier Sense Errors:

Deferred Transmissions: 0000000000

ESC for previous menu MainMenu Exit

Refresh

ClrStats

Table 6-6 describes the fields on the Ethernet Port Status screen.

Table 6-6. Ethernet Port Status Screen Contents (1 of 2)

Label

What the Field Indicates

Port Use

The port is enabled if 802.3 or Version 2 is displayed.

The IP address of the port.

IP Address

Subnet Mask

The subnet mask to be used with the IP address.

Default Gateway Address The gateway to be used for packets that do not have a

route.

Ethernet MAC Address

Frames Transmitted

Frames Received

Errored Frames

The physical address of the port.

The number of frames transmitted.

The number of frames received.

The number of frames in error. This is the sum of frames

with alignment errors, FCS (Frame Check Sequence) errors,

and framing errors.

Excessive Collisions

The number of frames for which transmission failed due to

excessive collisions.

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Monitoring the DSU

Table 6-6. Ethernet Port Status Screen Contents (2 of 2)

Label

What the Field Indicates

Carrier Sense Errors

The number of times the carrier sense condition was lost or

never asserted.

Deferred Transmissions

The number of frames for which the first transmission

attempt is delayed because the medium is busy.

All counts show the number of occurrences since the last reset of the counters.

Management Protocol Statistics

To view the Management Protocol Statistics, follow this menu selection

sequence:

Main Menu → Status → Management Protocol Statistics

main/status/management

Device Name: Node A

Model: 7612

MANAGEMENT PROTOCOL STATISTICS

IP TCP

UDP

Datagrams Transmitted:

–

Datagrams Received:

Format Errors:

Invalid Address:

Unknown Protocol:

Dropped Due To No Route:

ESC for previous menu MainMenu Exit

Refresh

ClrStats

Table 6-7 describes the fields on the Management Protocol Statistics screen.

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Monitoring the DSU

Table 6-7. Management Protocol Statistics Screen Contents

Label

What the Field Indicates

Datagrams Transmitted

The number of datagrams successfully transmitted at each

protocol layer.

Datagrams Received

The number of datagrams successfully received at each

protocol layer.

Format Errors

The number of protocol packets that contained errors.

Invalid Address

The number of protocol packets that contained invalid

addresses.

Unknown Protocol

The number of datagrams that were lost due to unknown

protocols.

Dropped Due to No

Route

The number of datagrams that were lost due to no route.

All counts show the number of occurrences since the last reset of the counters.

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Testing

Detecting Problems

The DSU can detect and report problem conditions and perform diagnostic tests.

The DSU offers a number of indicators to alert you to possible problems:

LEDs – Refer to DSU LEDs in Chapter 6, Monitoring the DSU.

SNMP Traps – For information on traps, refer to Configuring SNMP Traps in

Chapter 8, Messages and Troubleshooting.

Health and status messages and network performance statistics. Refer to

Chapter 6, Monitoring the DSU.

Alarm Condition Indications.

The following table shows the available indicators of alarm conditions on the

network interface and the User Data port.

SNMP ATI Status Alarm Specific

Alarm Condition

Crossed Pairs

Trap

Screen

LED

No Signal (NS)

Out of Service (OOS)

Out of Frame (OOF)

Excessive Bipolar Violations (BPV)

Inband Framing Error

DTR Off

Link Up/Link Down Trap

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Testing

Tests Available

From the Test menu, you can run network tests, data port tests, and a lamp test

for the front panel LEDs. Loopbacks can be initiated locally and remotely. Refer to

Table 7-1, Loopbacks.

The Test menu is limited to users with an access level of 1 or 2. To access the

Test menu, follow this menu selection sequence:

Main Menu → Test

main/test

Device Name:Node A

Model: 7612

TEST

Network Tests

Data Port Tests

Lamp Test

Abort All Tests

ESC for previous menu MainMenu Exit

Network-initiated tests require the participation of your network service provider.

The DSU supports physical-level tests independently on a per-interface basis.

The CSU and DSU loopbacks and 511 test pattern send/monitor are

supported on the network interface.

The Local Loopback and 511 test pattern send/monitor are supported on the

DTE port.

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Testing

Network Tests

To access the Network Tests screen, follow this menu selection sequence:

Main Menu → Test → Network Tests

main/test/network

Device Name:

Model: 7612

NETWORK TESTS

Status

Test

Command

Result

0:00:00

CSU Loopback:

DSU Loopback:

Start

Inactive

0:00:00

Send V.54 Up:

Send V.54 Down: Send

Send

Inactive

Send 511:

Monitor 511:

Start

Stop

Inactive

Active

0:00:00

125:08:48

Errors 99999+

Ctrl-a to access these functions, ESC for previous menu

ResetMon

MainMenu

Exit

Use the Command column to start or stop a test by pressing Enter. The Result

column displays the test duration since the last device reset. When the Monitor

511 test is active, ResetMon is available to reset the error counter to zero.

A network-initiated loopback is not affected by the Test Timeout option, the Stop

command on the Network Test screen, or the Abort All Tests command from the

Test menu.

CSU or External Network Loopback

CSU loopback is an external loopback that is located as closely as possible to the

network interface. An active CSU loopback disrupts IP data going over the IMC.

DSU

CSU

DDS

Network

Port

DTE

Interface

Aggregate

DTE

Port

496-15144

CSU Loopback

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Testing

DSU or Internal Network Loopback

DSU loopback is an internal loopback that is located as closely as possible to the

customer interface serving the DTE.

An active DSU loopback initiated from the network disrupts IP data going over the

IMC. However, this test is not disruptive when initiated by the user (via ATI) or by

the NMS.

DSU

CSU

Aggregate

DDS

Network

Port

DTE

Interface

DTE

Port

DSU Loopback

496-15160

Send V.54 Up/Down Sequences

The local DSU can send an ITU-T V.54 Up or Down sequence to request the

activation or termination of a DSU (digital) loopback of a remote unit. This is the

same as the DSU Loopback shown above except the test is activated remotely.

The DSU can send:

In-band V.54 Up (activation) code to request a Remote DSU Loopback

(V.54 Loop 2) at the remote DSU, or

In-band V.54 Down (deactivation) code to request the termination of a

Remote DSU Loopback (V.54 Loop 2) at the remote DSU.

To initiate a send sequence, select the appropriate Send command. Sending

appears in the Status column followed (after 3 seconds) by Command Complete

at the bottom of the screen.

511 Test Pattern for the Network

This test sends and/or monitors the 511 test pattern over the network interface.

The Monitor 511 test also provides an error counter that can be reset.

To start sending and/or monitoring, select the appropriate Start command.

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Testing

Data Port Tests

To access the Data Port Tests screen, follow this menu selection sequence:

Main Menu → Test → Data Port Tests

main/test/port

Device Name:Node A

Model: 7612

DATA PORT TESTS

Test

Command

Start

Status

Result

Local Loopback:

Inactive

000:00:00

Send 511:

Monitor 511:

Start

Stop

Inactive

Active

255:59:59+ - Errors 99999+

ESC for previous menu MainMenu Exit

ResetMon

Local Loopback

Local Loopback loops the user data back to the DTE. This loopback is located as

closely as possible to the User Data Port (DTE) interface.

DSU

CSU

DDS

Network

Port

DTE

Port

DTE

Interface

Aggregate

97-15344

Local Loopback

511 Test Pattern for the DTE

This test sends and monitors a 511 test pattern over the User Data Port interface.

The 511 monitor expects the external equipment to provide the clock for the

511 pattern on the interchange circuit CT113 – Transmit Signal Element Timing –

DTE Source (XTXC or TT) for timing the incoming pattern. Refer to

DTE Port (V.35) Connector in Appendix E, Cables and Pin Assignments.

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Testing

Lamp Test

The DSU supports a Lamp test from the Test menu to determine whether all

LEDs are lighting and functioning properly.

During the Lamp test, all LEDs blink simultaneously every second. When you

stop the Lamp test, the LEDs are restored to their normal condition.

Ending an Active Test

A test initiated by the user can be ended by the user.

A Test Timeout option is available to automatically terminate a user-initiated

Loopback or Pattern test (as opposed to manually terminating a test) after it

has been running a specified period of time. Refer to Table A-1, System

Options.

Test Timeout does not pertain to tests commanded by the:

— Network, such as the network-initiated CSU and DSU Loopbacks.

— DTE, such as the DTE-initiated Local Loopback.

On each test screen is a command column. Pressing Return when the cursor

is on the Stop command stops the test.

Use the Abort All Tests selection from the Test menu to stop all tests running

on all interfaces, with the exception of network or DTE-initiated loopbacks.

Command Complete appears when all tests on all interfaces have been

terminated.

Test status messages appear in the right column of the System and Test Status

screen. See Table 6-3, Test Status Messages, in Chapter 6, Monitoring the DSU.

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Testing

Loopbacks

Loopbacks can be started from a variety of points in the network. Refer to

Table 7-1 for further information.

Table 7-1. Loopbacks

Loopback Type

Initiated By

Notes

Bilateral Loopback

H ATI

When enabled, running a DSU

loopback also automatically

starts a local loopback. Refer to

H NMS

H Remote unit sending Table A-3, Data Port Options, to

V.54 sequence

enable.

56 kbps CSU Loopback

(Non-latching loopback)

64 kbps CC CSU Loopback

(Latching loopback)

H ATI (Network tests)

When initiated by the network,

CSU Loopback cannot be

disabled by the user. When IMC

is enabled, the aggregate data

is looped back to the network.

H NMS

H DDS Network, by

loop current reversal

DSU Loopback (Digital)

Local Loopback

H ATI

When IMC is enabled, only user

data is looped back to the

network. Refer to Table A-3,

Data Port Options.

H NMS

H ATI

H DTE via CT141

H NMS

Control via CT141 can be

disabled. Refer to Table A-3,

Data Port Options.

Network-initiated

56 kbps DSU Loopback

(Non-latching loopback)

H DDS Network

When IMC is enabled, the

aggregate data stream is looped

back to the network. Cannot be

disabled by user.

Network-initiated

64 kbps CC DSU Loopback

(Latching loopback)

H DDS Network

Includes optional data

scrambling and uses 25-second

timer to detect the network

sequence. When IMC is

enabled, the aggregate data

stream is looped back to the

network. Can be disabled by

user.

Remote Digital Loopback

H Remote unit sending Same as a DSU Loopback but

V.54 sequence

initiated by a remote unit via

V.54 sequence. When IMC is

enabled, only user data is

looped back to the network. Can

be disabled locally. Refer to

Table A-2, Network Interface

Options.

V.54 Sequences to remote

unit

H ATI

Control via CT140 can be

disabled. Refer to Table A-3,

Data Port Options.

H NMS

H DTE via CT140

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Testing

Device Reset

The DSU can be reset locally or remotely. From the Control menu, select Reset

Device and press Return, then answer Yes to the verification message. The DSU

reinitializes itself, performing a Device Self-Test. Refer to Table 6-2, Self-Test

Results Messages, in Chapter 6.

Configuring the DSU improperly could make the user interface inaccessible,

leaving it in a state where an ATI session cannot be started through the Terminal

port or via a Telnet session. If this occurs, DSU connectivity can be restored with

a terminal that is directly connected and set for Terminal Port option defaults.

Two methods can be used to restore access to the ATI. Both methods cause a

device reset.

Reset Terminal Port – Allows you to only reset the configuration options

related to Terminal port usage. No security-related configuration options are

changed. Refer to Table A-5, Terminal Port Options, for defaults.

Reload Factory Defaults – Allows you to reload the Default Factory

Configuration, resetting all of the configuration areas and control settings for

security reasons. This method is useful when the user’s passwords have

been forgotten.

" Procedure

To reset Terminal port settings:

1. At the asynchronous terminal connected to the Terminal port, verify that the

terminal’s options are set to the default settings:

— Data Rate(Kbps) to 9.6

— Character Length to 8

— Stop Bits to 1

— Parity to None

2. Power the DSU Off and back On. The DSU performs a power-up routine.

3. Immediately after the OK and TEST LEDs light up, press the Return key

5 times quickly in succession. The System Paused screen appears.

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Testing

4. Tab to the desired option, and enter yes (or y) for the selected prompt.

If entering yes to prompt . . . Then all . . .

Reset Terminal Port Options

Terminal port options are set to their factory

default values. Refer to Table A-5, Terminal Port

Options.

Reload Factory Defaults

Factory default settings contained in the Default

Factory Configuration area are loaded in Current,

Customer 1, and Customer 2 configuration areas.

Any changes to configuration and control settings

will be replaced by the factory defaults.

If no (or n) is entered, or if no selection is made within 30 seconds, the DSU

returns to the condition or operation it was in when the system pause was

initiated, with the Terminal port data rate returning to its configured rate.

5. If yes (or y) is entered, the DSU resets itself and initiates a Device Self-Test.

Connectivity is restored and the User Interface Idle screen appears.

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Messages and Troubleshooting

Overview

There are many messages available to help you assess the status of the device

and contribute to problem resolutions. Refer to the following sections:

Configuring SNMP Traps

Device Messages

Troubleshooting

Configuring SNMP Traps

An SNMP trap can be automatically sent out through the IMC or the 10BaseT

port to the SNMP manager when the DSU detects conditions set by the user.

These traps enable the SNMP manager to gauge the state of the network. Refer

to Appendix D, Standards Compliance for SNMP Traps, for details of SNMP traps

supported by the DSU.

To configure the DSU for SNMP traps, use the SNMP Traps Options screen to:

Enable SNMP traps.

Set the number of SNMP managers that receive SNMP traps from the DSU.

Enter an IP address and network destination for each SNMP manager

specified.

Select the type of SNMP traps to be sent from the DSU.

To configure SNMP Traps, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

SNMP → SNMP Traps

Refer to Table A-9, SNMP Traps Options.

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Messages and Troubleshooting

Device Messages

The Device Messages in Table 8-1, listed in alphabetical order, may appear in the

messages area at the bottom of the ATI screens.

Table 8-1. Device Messages (1 of 2)

Device Message

What Message Indicates

What To Do

Blank Entries

Removed

New had been selected

from the Administer Logins

screen, no entry was made,

and Save was selected.

H No action needed.

H Reenter the Login ID,

Password, and Access Level.

Cannot Save – No

An attempt was made to

Create a Login with Access

Level 1.

Level 1

Levels 2 and 3 only.

Command Complete

Action requested has

successfully completed.

No action needed.

Invalid Character (x)

An invalid ASCII character

has been entered.

Reenter information using valid

characters.

Invalid – Network

Network-initiated loopback

No action needed.

Initiated CSU (or DSU) was in progress when

Loopback Active

another selection was

made.

Invalid Password

incorrect password was

entered; access is denied.

H Try again.

H Contact your system

administrator to verify your

password.

Invalid – [Test]

Already Active

[Test] can be a CSU, DSU,

or DTE Local Loopback, or

a Send 511 or Monitor 511.

The [test] was already in

progress when another

selection was made.

H Allow test to continue.

H Select another test.

H Stop the test.

Invalid Test

Combination

A loopback or 511 pattern

test was in progress when

Start was selected to start

another test, or was active

on the same or another

interface when Start was

selected.

H Wait until other test ends and

message clears.

H Abort all tests from the Test

menu screen.

H Stop the test from the same

screen the test was started

from.

Limit of six Login IDs

reached

An attempt to enter a new

limit of six login/password

combinations has been

reached.

1. Delete another login/password

combination.

2. Reenter the new login ID.

x is the character not being accepted.

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Messages and Troubleshooting

Table 8-1. Device Messages (2 of 2)

Device Message

What Message Indicates

What To Do

No Security Records

to Delete

Delete was selected from

the Administer Login

screen, and no security

records had been defined.

H No action needed.

H Enter a security record.

Password Matching

Error – Re-enter

Password

Password entered in the

Re-enter Password field of

the Administer Logins

screen does not match

what was entered in the

Password field.

H Try again.

H Contact your system

administrator to verify your

password.

Please Wait

Test Active

Command takes longer

than 5 seconds.

Wait until message clears.

A test is running and no

higher priority health and

status messages exist.

H Contact service provider if test

was initiated by the network.

H Wait until the other test ends

and message clears.

H Cancel all tests from the Test

screen.

H Stop the test from the same

screen the test was started

from.

Troubleshooting

This DSU is designed to provide you with many years of trouble-free service. If a

problem occurs, however, refer to Table 8-2 for possible solutions.

Table 8-2. Troubleshooting (1 of 2)

Symptom

Possible Cause

Solutions

Alarm LED is on.

One of several alarm

conditions exists. Health

and Status displays the

alarm condition.

Refer to Table 6-1, Health and

Status Messages, for

recommended action.

Cannot access the

DSU via the ATI.

H Power the DSU off and on and

incorrect, Terminal port is

misconfigured, or the DSU

otherwise configured so it

prevents access.

try again.

H If problem recurs, try to access

the ATI through a Telnet session.

H Reload Factory Defaults. Refer

to Device Reset in Chapter 7.

H Do a Device Reset. Refer to

Device Reset in Chapter 7.

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Messages and Troubleshooting

Table 8-2. Troubleshooting (2 of 2)

Symptom Possible Cause

Solutions

Device Fail appears The DSU detects an

H Power the DSU off and on and

on the System and

Test Status screen

under Self-Test

results.

internal hardware failure.

try again.

H Clear the message using the

Clear command.

H Contact your service

representative.

An LED is not lit.

LED is burned out.

Run the Lamp test. If the LED in

question does not flash with the

other LEDs, then contact your

service representative.

No power, or the

LEDs are not lit.

The power cord is not

Check that the power cord is

securely attached at both ends.

securely plugged into the

wall receptacle and into the

rear panel connection.

The wall receptacle has no

power.

H Check the wall receptacle power

by plugging in some equipment

that is known to be working.

H Check the circuit breaker.

H Verify that your site is not on an

energy management program.

Not receiving data;

DSU is not

H DDS line rate/speed has H Verify that your subscriber loop is

changed. running at 56 or 64 CC kbps.

responding.

H Excessive BPVs causing H Verify that the DSU is set to the

DSU to become stuck in

Autobaud mode.

same rate as your subscriber

loop. (The DSU’s rate is

displayed on the Network

Interface Status screen.)

H Excessive Loop Loss

causing DSU to become

stuck in Autobaud mode. H If getting Excessive BPVs, verify

that you do not have a bad cable.

If the cable is good, contact the

network provider.

If getting excessive Loop Loss

(dB) indications, install a higher

quality cable. For maximum

distances in LADS applications,

refer to Table F-3 in Appendix F.

H If the DDS Line Rate (Kbps) field

shows Autobaud, the DSU may

be stuck in Autobaud mode.

Configure Line Rate (Kbps) for

56 or 64 kbps.

H Run Loopback tests. Refer to

Tests Available in Chapter 7.

Power-Up Self-Test The DSU has detected an

H Reset the DSU and try again.

fails. Only Alarm

LED is on after

power-up.

internal hardware failure.

H Contact your service

representative.

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Configuration Option Tables

Overview

The tables in this appendix summarize the configuration options accessed when

you select Configuration on the Main Menu. The configuration options are

arranged into groups based upon functionality.

Configuration

Edit/Display

• System

MAIN MENU

Status

Test

Configuration

Control

• Network

Load Configuration

from . . .

• Data Port

• Ethernet Port

• Terminal Port

• Telnet Session

• SNMP

SNMP Options

• General SNMP Management

• SNMP NMS Security

• SNMP Traps

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Configuration Option Tables

Select . . .

To Access the . . .

To Configure the . . .

System

System Options, Table A-1

General system

options.

Network

Network Interface Options, Table A-2

Data Port Options, Table A-3

DDS network interface.

DTE port.

Data Port

Ethernet Port

Terminal Port

Ethernet Port Options, Table A-4

Terminal Port Options, Table A-5

10BaseT port.

Terminal port.

Telnet Session Telnet Session Options, Table A-6

Telnet user interface.

SNMP

H General SNMP Management Options,

Management support

through SNMP.

Table A-7

H SNMP NMS Security Options, Table A-8

H SNMP Traps Options, Table A-9

All changes to configuration options must be saved. Refer to Saving

Configuration Options in Chapter 3, Configuring the DSU.

System Options Menu

For System Options, refer to Table A-1. To access the System Options screen,

follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit → System

Table A-1. System Options (1 of 3)

Operating Mode

Possible Settings: DDS, LADS

Default Setting: DDS

The unit’s operating mode depends upon the DSU’s application.

DDS – Standard DDS network operation. The operating rate is either 56 kbps or

64 kbps CC.

LADS – The Local Area Data Set operating mode requires that the local and remote

units are connected directly to each other. This is a point-to-point application; also

known as LDM.

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Configuration Option Tables

Table A-1. System Options (2 of 3)

DDS Line Rate (Kbps)

Possible Settings: 56, 64CC, Autobaud

Default Setting: Autobaud

The unit starts up with Autobaud. On the Network Interface Status screen, when the

DDS line rate obtained from the service provider is detected, Autobaud is replaced with

the actual rate.

H DDS Line Rate (Kbps) option appears when Operating Mode is set to DDS.

NOTES: – Setting the actual data rate will result in minimum power-up time. (If both

DSUs use Autobaud, training can take several minutes.) Configuring the

actual data rate is recommended after initial installation.

– The clock rates generated by the DSU at the DTE interface (TXC and

RXC) equal the operating rate minus the configured rate of 1600, 4000,

or 8000 bps for the IMC, if enabled. Refer to the In-Band Management

Channel Rate (bps) option in Table A-2.

56 – 56 kbps line rate.

64CC – 64 kbps Clear Channel on a 72 kbps circuit.

Autobaud – This setting is automatically changed to the actual operating line rate of

56 kbps or 64CC as soon as the signal is detected.

LADS Timing

Possible Settings: Internal, External, Receive

Default Setting: Internal

Determines the timing source for the unit.

H LADS Timing option appears when Operating Mode is set to LADS.

Internal – Timing derived from the unit’s local clock. Use this setting for the LADS

primary timing unit that establishes the timing for both point-to-point units.

External – Timing is derived from the external clock provided by the DTE connected to

the V.35 interface on circuit CT113 (pins U, W).

NOTE: The valid rate generated by the DTE must be equal to the LADS line rate

minus the configured rate of 1600, 4000, or 8000 bps for the IMC, if

enabled. Refer to the In-Band Management Channel Rate (bps) option in

Table A-2.

Receive – Timing is derived from the line receive signal unless the unit is running

diagnostic tests. During the tests, the timing source is the internal clock. This setting

should be used for a LADS secondary timing unit.

LADS Line Rate (Kbps)

Possible Settings: 56, 64

Default Setting: 64

Line operating rate for LADS operation.

H LADS Line Rate (Kbps) option appears when Operating Mode is set to LADS.

56 – 56 kbps line rate. Provides increased distance for the LADS applications.

64 – 64 kbps line rate.

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Configuration Option Tables

Table A-1. System Options (3 of 3)

Test Timeout

Possible Settings: Enable, Disable

Default Setting: Enable

Allows user-initiated tests to end automatically. Recommend enabling when the unit is

managed remotely through the IMC to avoid the requirement to terminate the test

manually.

Enable – User-initiated loopback and pattern tests end when test duration is reached.

Disable – Tests can be terminated manually from the Network Tests screen. Refer to

Network Tests in Chapter 7.

NOTE: Tests initiated by the DTE or network are not affected by this test timeout.

Test Duration (min)

Possible Settings: 1–120

Default Setting: 10

Number of minutes for a test to be active before automatically ending.

H Test Duration (min) option appears when Test Timeout is enabled.

1 to 120 – Amount of time in minutes for a user-initiated test to run before terminating.

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Configuration Option Tables

Network Interface Options Menu

For Network Interface Options, refer to Table A-2. To access the Network

Interface Options screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit → Network

Table A-2. Network Interface Options (1 of 2)

Network-initiated DSU Loopback (64K CC)

Possible Settings: Enable, Disable

Default Setting: Enable

Indicates whether the access unit responds to a latching DSU loopback sequence sent

by the network as specified by TR62310.

H Network-initiated DSU Loopback (64K CC) option appears when Operating Mode

is set to DDS in Table A-1.

Enable – Responds to network-initiated commands to start and stop a latching DSU

loopback.

Disable – DSU will not respond to a latching DSU loopback initiated by the network.

Data Scrambling (64K CC)

Possible Settings: Enable, Disable

Default Setting: Disable

Data scrambling is used to suppress the possible simulation of network-initiated DSU

latching loopback commands by application data.

NOTE: The local and remote units must be set the same.

H Data Scrambling (64K CC) option appears when Operating Mode is set to DDS in

Table A-1.

Enable – Enables data scrambling.

Disable – No data scrambling.

V.54 Initiated DSU Loopback

Possible Settings: Enable, Disable

Default Setting: Disable

When enabled, user data is looped back to the network when a V.54 Loop Up sequence

is received. The DSU loopback ends when a V.54 Loop Down sequence is detected.

Enable – DSU loopback can be initiated or terminated by a remote unit sending in-band

V.54 Loop 2 Up or Down sequences.

Disable – V.54 Loop 2 sequences are ignored.

In-Band Management Channel Rate (bps)

Possible Settings: Disable, 1600, 4000, 8000

Default Setting: Disable

The IMC provides a non-disruptive management channel to the remote DSU and uses a

portion of the DTE line rate.

Disable – The IMC is inactive.

1600, 4000, or 8000 – Sets the amount of the line rate in bps to allocate to the IMC.

NOTE: The local and remote units must be set the same.

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Configuration Option Tables

Table A-2. Network Interface Options (2 of 2)

IMC IP Address

Possible Settings: 000.000.000.000 – 223.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the Internet Protocol address used to access the unit via the IMC interface.

H IMC IP Address option does not appear when the In-Band Management Channel

Rate (bps) is disabled.

000.000.000.000 – 223.255.255.255 – The range for the first byte is 000 to 223, with the

exception of 127. The range for the remaining three bytes is 000 to 255.

Clear – Clears the IMC IP address and sets to all zeros.

IMC Subnet Mask

Possible Settings: 000.000.000.000 – 255.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the subnet mask used to access the unit via the IMC interface.

H IMC Subnet Mask option does not appear when the In-Band Management

Channel Rate (bps) is disabled.

000.000.000.000 – 255.255.255.255 – Set the IMC interface subnet mask. The range

for each byte is 000 to 255.

Clear – Clears the IMC Subnet Mask and sets to all zeros. When the subnet mask is all

zeros, the device creates a default subnet mask based on the class of IP address:

– Class A defaults to 255.000.000.000

– Class B defaults to 255.255.000.000

– Class C defaults to 255.255.255.000

IMC Routing Information Protocol

Possible Settings: None, Proprietary

Default Setting: Proprietary

The RIP routes IMC management information between devices.

H IMC Routing Information Protocol does not appear when the In-Band Management

Channel Rate (bps) option is disabled.

None – No routing protocol.

Proprietary – Uses proprietary variant of RIP Version 1 to enable the routing of

IP traffic between Paradyne devices.

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Configuration Option Tables

Data Port Options Menu

For Data Port Options, refer to Table A-3. To access the Data Port Options

screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit → Data Port

Table A-3. Data Port Options (1 of 3)

Invert Transmit Clock

Possible Settings: Enable, Disable

Default Setting: Disable

The DSU clock provided on Interchange Circuit CT114, Transmit Signal Element Timing

DCE source (TXC), is phase inverted with respect to Interchange Circuit CT103,

Transmitted Data (TXD). Recommended when data errors are occurring due to long

cable lengths.

Enable – The DSU-supplied clock is phase inverted with respect to TXD.

Disable – The clock supplied by the DSU on TXC is normal (i.e., not inverted).

Port (DTE) Initiated Loopbacks

Possible Settings: Disable, Local, Remote, Both

Default Setting: Disable

Specifies whether the DTE can initiate and terminate local and/or remote loopbacks.

The DTE loopback control is done through the Interchange Circuits specified by the

V.54 standard.

NOTE: Refer to Loopbacks in Chapter 7.

Disable – No local or remote loopbacks can be initiated by the DTE.

Local – A local loopback can be controlled by the DTE, via the Interchange Circuit LL

(CT141), as specified by V.54. The DTE port remains in loopback as along as LL

remains on. Aborting the loopback from the ATI has no effect.

Remote – A remote digital loopback can be controlled by the DTE, via Interchange

Circuit RL (CT140), as specified by V.54. The remote equipment must be able to detect

the in-band V.54 loopback sequence.

Both – Both the local and remote loopbacks can be controlled by the DTE.

Bilateral Loopback

Possible Settings: Enable, Disable

Default Setting: Disable

When a DSU loopback is initiated, a local DTE loopback is also automatically initiated.

A Bilateral Loopback can be started by the ATI/NMS or by detection of a V.54 Loop 2 Up

sequence.

Enable – When Bilateral Loopback is enabled, running a DSU loopback also

automatically starts a local loopback. The local loopback ends when the DSU loopback

terminates.

Disable – Running a DSU loopback does not start a local loopback.

NOTE: Refer to Loopbacks and Network Tests in Chapter 7.

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Configuration Option Tables

Table A-3. Data Port Options (2 of 3)

Carrier Control by RTS

Possible Settings: Constant, Switched

Default Setting: Constant

Simulates Constant or Switched Carrier operation.

H Carrier Control by RTS option can be changed only when In-Band Management

Channel Rate (bps) is disabled (see Table A-2).

Constant – The internal RTS is forced on and the DSU is in a constant Data Mode on

the transmit line. The external RTS lead is ignored. The actual signal on the line is either

all ones (DMI) or DTE transmitted data.

Switched – RTS is monitored and CMI codes are transmitted when RTS is off.

CTS Control

Possible Settings: Standard, Follow RTS, Forced On, Circuit Assurance

Default Setting: Standard

Specifies the operation of the Interchange Circuit CT106, Clear to Send (CTS), which is

an output from the DSU.

Standard – CTS follows the internal RTS with a fixed delay, except that CTS will be off

when a network interface-related alarm is detected or a test is active. The active test

may be initiated locally, remotely, or by the network.

Follow RTS – CTS follows the external RTS lead without delay, regardless of alarms

and tests.

Forced On – CTS is always forced on after the unit is powered up with a successful

self-test.

Circuit Assurance – With circuit assurance, CTS operates the same as the Standard

option, except that CTS will also be deasserted when CMI codes are being received.

RLSD Control

Possible Settings: Standard, Forced On

Default Setting: Standard

Specifies the operation of the Interchange Circuit CT109, Received Line Signal Detector

(RLSD or CD), which is an output from the DSU.

Standard – RLSD is asserted when Data Mode is on the receive line. RLSD deasserts

when a DDS facility alarm is detected or the DSU is receiving CMI codes.

Forced On – RLSD is forced on after the unit is powered up with a successful self-test.

DSR Control

Possible Settings: Standard, Forced On, On During Test

Default Setting: Standard

Specifies the operation of the Interchange Circuit CT107, Data Set Ready (DSR), which

is an output from the DSU.

Standard – DSR is always asserted, except when a DDS facility alarm is reported or

the DSU is in Test mode.

Forced On – DSR is forced on after the unit is powered up with a successful self-test.

On During Test – DSU operates the same as the Standard option, except that DSR

remains asserted when the DSU is in Test mode to allow the DTE to send test patterns.

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Configuration Option Tables

Table A-3. Data Port Options (3 of 3)

Monitor DTR

Possible Settings: Enable, Disable

Default Setting: Enable

Indicates to the DSU whether to monitor the Interchange Circuit CT108, Data Terminal

Ready (DTR), from the DTE.

Enable – The DSU monitors the state of DTR on the User Data (DTE) port. Based on

the Link Traps option setting in Table A-9, the DSU uses the DTR circuit to trigger a Link

Up/Down SNMP trap and a Health and Status message.

Disable – DTR is not monitored by the DSU. Use when a DTE does not provide the

DTR lead at the interface.

Ethernet Port Options Menu

For Ethernet Port Options, refer to Table A-4. To access the Ethernet Port

Options screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From →

Edit → Ethernet Port

Table A-4. Ethernet Port Options (1 of 2)

Port Use

Possible Settings: 802.3, Version 2, Disable

Default Setting: Version 2

The Ethernet port provides a choice of functions.

802.3 – Configures the DSU to use IEEE 802.3 format.

Version 2 – Configures the system to use Ethernet Version 2 format.

Disable – Data received on this port is ignored.

H No other fields in this table will appear when set to Disable.

IP Address

Possible Settings: 000.000.000.000 – 223.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the IP (Internet Protocol) address used to identify the Ethernet port. Each

three-digit decimal number represents a byte.

000.000.000.000 – 223.255.255.255 – Enter an address. The range for the first byte is

000 to 223, with the exception of 127. The range for the remaining three bytes is 000 to

255.

Clear – Clears the IP Address and sets to all zeros.

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Configuration Option Tables

Table A-4. Ethernet Port Options (2 of 2)

IP Subnet Mask

Possible Settings: 000.000.000.000 – 255.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the subnet mask needed to access the Ethernet port.

000.000.000.000 – 255.255.255.255 – Set the Ethernet port subnet mask. The range for

each byte is 000 to 255.

Clear – Clears the subnet mask and sets to all zeros. When the subnet mask is all

zeros, the device creates a default subnet mask based on the class of IP address:

– Class A defaults to 255.000.000.000

– Class B defaults to 255.255.000.000

– Class C defaults to 255.255.255.000

Default Gateway Address

Possible Settings: 000.000.000.000 – 223.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the IP address of the default gateway to be used for packets that do not have

a route.

000.000.000.000 – 223.255.255.255 – Enter an address. The range for the first byte is

000 to 223, with the exception of 127. The range for the remaining three bytes is 000 to

255. If the address is 000.000.000.000, all packets without a route are discarded.

Clear – Clears the Default Gateway Address and sets to all zeros.

Terminal Port Options

For Terminal Port Options, refer to Table A-5. To access the Terminal Port

Options screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

Terminal Port

Table A-5. Terminal Port Options (1 of 3)

Data Rate (Kbps)

Possible Settings: 2.4, 4.8, 9.6, 14.4, 19.2, 28.8, 38.4

Default Setting: 9.6

Data rate in kbps on the Terminal port.

2.4 to 38.4 – Selects a Terminal port data rate from 2.4 to 38.4 kbps.

Character Length

Possible Settings: 7, 8

Default Setting: 8

Specifies the number of bits needed to represent one character, including the parity bit.

7 or 8 – Sets the bits per character.

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Configuration Option Tables

Table A-5. Terminal Port Options (2 of 3)

Parity

Possible Settings: None, Even, Odd

Default Setting: None

Specifies Parity for the Terminal port.

None – Provides no parity.

Even – Parity is even.

Odd – Parity is odd.

Stop Bits

Possible Settings: 1, 2

Default Setting: 1

Provides the number of stop bits for the Terminal port.

1 or 2 – Selects the number of stop bits.

Monitor DTR

Possible Settings: Enable, Disable

Default Setting: Enable

Specifies monitoring of the Data Terminal Ready (DTR) control lead.

Enable – Standard operation of the DTR control lead.

Disable – DTR is ignored. Some external device connections may require this setting.

Possible Settings: Enable, Disable

Default Setting: Disable

Used to secure access to the ATI through the Terminal port. Login IDs are created with

a password and access level.

Enable – Security is enabled. When ATI access is attempted through the Terminal port,

a screen appears that requires a Login ID and password.

Disable – Main menu appears with no Login required.

NOTE: Refer to Creating a Login in Chapter 4.

Port Access Level

Possible Settings: Level 1, Level 2, Level 3

Default Setting: Level 1

The Terminal port access level is interrelated with the access level of the Login ID.

Level 1 – This is the highest access level. If Login Required is disabled, the Terminal

port access is level 1. If Login Required is enabled, the effective level is the Login ID

access level.

Level 2 – This access level overrides a Login ID with an access level 1. If a Login ID

has an access level of 3, the effective access level is 3.

Level 3 – This access level becomes the effective access level and overrides a Login

ID with an access level of 1 or 2.

NOTE: Refer to ATI Access in Chapter 4 for information about access levels.

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Configuration Option Tables

Table A-5. Terminal Port Options (3 of 3)

Inactivity Timeout

Possible Settings: Enable, Disable

Default Setting: Disable

Provides automatic logoff of an ATI session through the Terminal Port. When the

session is closed, User Interface Idle appears on the screen and the unit toggles the

Terminal port DSR lead.

Enable – The ATI session terminates automatically after the Disconnect Time set in the

next option. When the session was occurring over an external modem connected to the

Terminal port, the modem will interpret the DSR toggle as DTR being dropped and

disconnect.

Disable – An ATI session through the Terminal port will remain active indefinitely.

Disconnect Time(minutes)

Possible Settings: range 1 – 60

Default Setting: 5

Number of minutes of inactivity before the ATI session terminates automatically.

Timeout is based on no keyboard activity.

H Disconnect Time(minutes) option appears when Inactivity Timeout is enabled.

1 to 60 – The ATI user session is closed after the selected number of minutes.

Telnet Session Options

For Telnet Session Options, refer to Table A-6. To access the Telnet Session

Options screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

Telnet Session

Table A-6. Telnet Session Options (1 of 2)

Telnet Session

Possible Settings: Enable, Disable

Default Setting: Disable

Specifies if the DSU will respond to a Telnet session request from a Telnet client on an

interconnected IP network.

Enable – Allows Telnet sessions between the unit and a Telnet client.

Disable – No Telnet sessions allowed.

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Configuration Option Tables

Table A-6. Telnet Session Options (2 of 2)

Possible Settings: Enable, Disable

Default Setting: Disable

Used to secure access to the ATI through a Telnet session. Login IDs are created with a

password and access level. Refer to Creating a Login in Chapter 4.

Enable – Security is enabled. When access is attempted via Telnet, the user is

prompted for a Login ID and password.

Disable – No Login required for a Telnet session.

Session Access Level

Possible Settings: Level 1, Level 2, Level 3

Default Setting: Level 1

The Telnet session access level is interrelated with the access level of the Login ID.

Level 1 – This is the highest access level. Access level is determined by the Login ID. If

Level 2 – This access level overrides a Login ID with an access level 1. If a Login ID

has an access level of 3, the effective access level is 3.

Level 3 – This access level provides the effective access level and overrides a Login ID

with an access level of 1 or 2.

NOTE: Refer to ATI Access in Chapter 4 for information about access levels.

Inactivity Timeout

Possible Settings: Enable, Disable

Default Setting: Disable

Provides automatic logoff of a Telnet session.

Enable – The Telnet session terminates automatically after the Disconnect Time set in

the next option.

Disable – A Telnet session will not be closed due to inactivity.

Disconnect Time (minutes)

Possible Settings: range 1 – 60

Default Setting: 5

Number of minutes of inactivity before a Telnet session terminates automatically.

Timeout is based on no keyboard activity.

H Disconnect Time (minutes) option appears when Inactivity Timeout is enabled.

1 to 60 – The Telnet session is closed after the selected number of minutes.

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Configuration Option Tables

SNMP Menu

The SNMP Menu includes the following:

General SNMP Management Options, Table A-7

SNMP NMS Security Options, Table A-8

SNMP Traps Options, Table A-9

General SNMP Management Options

For General SNMP Management Options, refer to Table A-7. To access the

General SNMP Management Options screen, follow this menu selection

sequence:

Main Menu → Configuration → Load Configuration From → Edit →

SNMP → General SNMP Management

Table A-7. General SNMP Management Options (1 of 2)

SNMP Management

Possible Settings: Enable, Disable

Default Setting: Disable

Specifies if the DSU can be managed by an SNMP NMS.

Enable – Enables SNMP management.

Disable – DSU does not respond to SNMP messages.

Community Name 1

Possible Settings: ASCII Text, Clear

Default Setting: public

Community Name of external SNMP Managers allowed access to the DSU’s MIB. This

community name must be supplied by an external SNMP manager attempting to access

a MIB object. Level of access is set in the next option, Name 1 Access.

ASCII Text – Enter a maximum of 130 ASCII printable characters. Refer to Entering

Device and System Information in Chapter 3.

Clear – Clears the Community Name 1 field.

Name 1 Access

Possible Settings: Read, Read/Write

Default Setting: Read

Set the access level for the Community Name 1 created in the previous option.

Read – Allows a read-only access (SNMP Get, Getnext) to accessible MIB objects.

Read/Write – Allows SNMP Get, Getnext, and Set functions on MIB objects. Write

access allowed to all MIB objects specified as read-write in the MIB RFC.

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Configuration Option Tables

Table A-7. General SNMP Management Options (2 of 2)

Community Name 2

Possible Settings: ASCII Text, Clear

Default Setting: [blank]

Community Name of external SNMP Managers allowed access to the DSU’s MIB. This

community name must be supplied by an external SNMP manager attempting to access

a MIB object. Level of access is set in the next option, Name 2 Access.

ASCII Text – Enter a maximum of 130 ASCII printable characters. Refer to Entering

Device and System Information in Chapter 3.

Clear – Clears the Community Name 2 field.

Name 2 Access

Possible Settings: Read, Read/Write

Default Setting: Read

Set the access level for the Community Name 2 created in the previous option.

Read – Allows a read-only access (SNMP Get, Getnext) to accessible MIB objects.

Read/Write – Allows SNMP Get, Getnext, and Set functions on MIB objects. Write

access allowed to all MIB objects specified as read-write in the MIB RFC.

SNMP NMS Security Options

For SNMP NMS Security Options, refer to Table A-8. To access the SNMP NMS

Security Options screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

SNMP → SNMP NMS Security

Table A-8. SNMP NMS Security Options (1 of 2)

NMS IP Validation

Possible Settings: Enable, Disable

Default Setting: Disable

Determines if security checks are performed on the IP address of any SNMP

management system that attempts to access the node.

Enable – Performs security checking. Allows access only if the sending manager’s

IP address has been entered in the NMS IP address list.

Disable – No security checking of incoming SNMP messages.

Number of Managers

Possible Settings: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Default Setting: 1

Set the number of SNMP managers that are authorized to send SNMP messages. The

IP address of each SNMP management system must be entered in the next option.

1 to 10 – Specifies the number of SNMP managers allowed to send SNMP messages.

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Configuration Option Tables

Table A-8. SNMP NMS Security Options (2 of 2)

NMS n IP Address

Possible Settings: 000.000.000.000 – 223.255.255.255, Clear

Default Setting: 000.000.000.000

Enter an IP address for each of the managers set in the previous option. “n” is the

number of the manager (1 to 10). Use the next option to establish the security level for

each SNMP manager.

NOTE: When an SNMP message is received from an IP address that does not

match the IP address entries in this option, access is denied and, if SNMP

traps are enabled, an “authenticationFailure” trap is generated.

000.000.000.000 – 223.255.255.255 – Sets the NMS IP address. The range for the first

byte is 000 to 223, with the exception of 127. The range for the remaining three bytes is

000 to 255.

Clear – Clears the IP address and sets to all zeros.

Access Level

Possible Settings: Read, Read/Write

Default Setting: Read

Set the access level for each IP address created in the previous option.

Read – Allows read-only access (SNMP Get and Getnext) to accessible MIB objects.

Read/Write – Allows an SNMP Get, Getnext, and Set to MIB objects. Write access

allowed to all MIB objects specified as read-write in the MIB RFC. This access level is

overridden by the Community Name’s access level for the SNMP Manager, if the

Community Name access level is Read.

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Configuration Option Tables

SNMP Traps Options

For SNMP Traps Options, refer to Table A-9. To access the SNMP Traps Options

screen, follow this menu selection sequence:

Main Menu → Configuration → Load Configuration From → Edit →

SNMP → SNMP Traps

Table A-9. SNMP Traps Options (1 of 2)

SNMP Traps

Possible Settings: Enable, Disable

Default Setting: Disable

Controls the generation of SNMP trap messages. The options for addresses and types

of traps are located in this table.

H SNMP Management must be enabled. See Table A-7.

Enable – SNMP trap messages are sent out to SNMP managers.

Disable – No SNMP trap messages are sent out.

Number of Trap Managers

Possible Settings: 1, 2, 3, 4, 5, 6

Default Setting: 1

Sets the number of SNMP management systems that will receive SNMP traps.

1 to 6 – Number of trap managers. An NMS IP address is required for each manager.

Trap Manager n IP Address

Possible Settings: 000.000.000.000 – 223.255.255.255, Clear

Default Setting: 000.000.000.000

Specifies the IP address used to identify each SNMP trap manager. n represents the

number of the manager (from 1 to 6).

000.000.000.000 – 223.255.255.255 – Enter an address for each SNMP trap manager.

The range for the first byte is 000 to 223, with the exception of 127. The range for the

remaining three bytes is 000 to 255.

Clear – Clears the IP address and sets to all zeros.

Trap Manager n Destination

Possible Settings: None, Ethernet, IMC

Default Setting: None

Provides the network destination path of each trap manager. n is the number of the

manager (from 1 to 6).

None – No destination is specified for Trap Manager n.

Ethernet – Ethernet port is the network destination.

H Port Use option must not be set to Disable. See Table A-4.

IMC – The In-Band Management Channel is the default network destination.

H In-Band Management Channel Rate (bps) option must be set to 1600, 4000, or

8000 bps. See Table A-2.

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Configuration Option Tables

Table A-9. SNMP Traps Options (2 of 2)

General Traps

Possible Settings: Disable, Warm, AuthFail, Both

Default Setting: Both

Determines which SNMP traps are sent to each trap manager.

Disable – No general trap messages are sent.

Warm – Sends trap message for “warmStart”.

AuthFail – Sends trap message for “authenticationFailure”.

Both – Sends both trap messages.

NOTE: Refer to Appendix D, Standards Compliance for SNMP Traps.

Enterprise Specific Traps

Possible Settings: Enable, Disable

Default Setting: Disable

This option is used to determine if SNMP traps are generated for enterprise-specific

events.

Enable – SNMP traps are generated for enterprise-specific events.

NOTE: Refer to Traps: enterpriseSpecific in Appendix D.

Disable – No enterprise-specific event traps are sent.

Link Traps

Possible Settings: Disable, Up, Down, Both

Default Setting: Both

This option is used to determine if SNMP traps are generated for link up and link down

for one of the communication interfaces.

Disable – No linkUp or linkDown SNMP traps are generated.

Up – A linkUp trap is generated when the DSU recognizes that one of the

communication interfaces is operational.

Down – A linkDown trap is generated when the DSU recognizes a failure in one of the

communication interfaces.

Both – Sends trap messages for detection of both linkUp and linkDown.

NOTE: Refer to Traps: linkUp and linkDown in Appendix D.

Link Trap Interfaces

Possible Settings: Network, Port, Both

Default Setting: Both

This option determines if the SNMP linkUp, SNMP linkDown, and interface-related

enterprise-specific traps are generated for the DDS Network Interface and/or User Data

(DTE) port.

NOTE: These traps are not supported on the Terminal port.

Network – SNMP trap messages are generated for the DDS network interface.

Port – SNMP trap messages are generated for the User Data (DTE) port.

Both – SNMP trap messages are generated on both the DDS network interface and the

User Date (DTE) port.

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Worksheets

Overview

The worksheets in this appendix summarize the configuration options accessed

when you select Configuration on the Main Menu. The possible menu selections

are displayed with the default settings and the possible settings.

Configuration Worksheets

System

Configuration Option

Operating Mode

DDS Line Rate (Kbps)

LADS Timing

Settings

Default in [Bold]

[DDS], LADS

56, 64CC, [Autobaud]

[Internal], External, Receive

56, [64]

LADS Line Rate (Kbps)

Test Timeout

[Enable], Disable

1–120 [10]

Test Duration (min)

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Worksheets

Network Interface

Configuration Option

Settings

Default in [Bold]

Network-initiated DSU Loopback (64K CC) [Enable], Disable

Data Scrambling (64K CC)

V.54 Initiated DSU Loopback

In-Band Management Channel Rate (bps)

IMC IP Address

Enable, [Disable]

[Disable], 1600, 4000, 8000

[000.000.000.000] – 223.255.255.255

[000.000.000.000] – 255.255.255.255

None, [Proprietary]

IMC Subnet Mask

IMC Routing Information Protocol

Data Port

Configuration Option

Invert Transmit Clock

Port (DTE) Initiated Loopbacks

Bilateral Loopback

Carrier Control by RTS

CTS Control

Settings

Default in [Bold]

Enable, [Disable]

[Disable], Local, Remote, Both

Enable, [Disable]

[Constant], Switched

[Standard], Follow RTS, Forced On,

Circuit Assurance

RLSD Control

DSR Control

Monitor DTR

[Standard], Forced On

[Standard], Forced On, On During Test

[Enable], Disable

Ethernet Port

Configuration Option

Port Use

Settings

Default in [Bold]

802.3, Version 2, Disable

IP Address

[000.000.000.000] – 223.255.255.255

[000.000.000.000] – 255.255.255.255

[000.000.000.000] – 223.255.255.255

IP Subnet Mask

Default Gateway Address

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Worksheets

Terminal Port

Configuration Option

Data Rate (Kbps)

Character Length

Parity

Settings

Default in [Bold]

2.4, 4.8, [9.6], 14.4, 19.2, 28.8, 38.4

7, [8]

[None], Even, Odd

[1], 2

Stop Bits

Monitor DTR

[Enable], Disable

Enable, [Disable]

[Level 1], Level 2, Level 3

Enable, [Disable]

range 1 – 60 [5]

Port Access Level

Inactivity Timeout

Disconnect Time(minutes)

Telnet Session

Configuration Option

Telnet Session

Settings

Default in [Bold]

Enable, [Disable]

[Level 1], Level 2, Level 3

Enable, [Disable]

range 1 – 60 [5]

Session Access Level

Inactivity Timeout

Disconnect Time(minutes)

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Worksheets

SNMP

Configuration Option

General SNMP Management

SNMP Management

Community Name 1

Name 1 Access

Settings

Default in [Bold]

Enable, [Disable]

ASCII Text, [public]

[Read], Read/Write

ASCII Text, [blank]

[Read], Read/Write

Community Name 2

Name 2 Access

SNMP NMS Security

NMS IP Validation

Number of Managers

NMS n IP Address

Access Level

Enable, [Disable]

[1], 2, 3, 4, 5, 6, 7, 8, 9, 10

[000.000.000.000] – 223.255.255.255

[Read], Read/Write

SNMP Traps

Enable, [Disable]

Number of Trap Managers

Trap Manager n IP Address

Trap Manager n Destination

General Traps

[1], 2, 3, 4, 5, 6

[000.000.000.000] – 223.255.255.255

[None], Ethernet, IMC

Disable, Warm, AuthFail, [Both]

Enable, [Disable]

Enterprise Specific Traps

Link Traps

Disable, Up, Down, [Both]

Network, Port, [Both]

Link Trap Interfaces

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MIB Descriptions

Overview

The following sections show how the 7612 SNMP DSU supports MIB objects

relative to their RFC descriptions. MIBs are available on the World Wide Web site

listed on Page A (the reverse side of the title page of this document). The 7612

SNMP DSU supports:

MIB II (see below)

RS-232-Like MIB (see page C-13)

Ethernet-Like MIB (see page C-17)

Paradyne Enterprise MIB (see page C-17)

MIB II – RFC 1213 and RFC 1573

The unit supports the following MIB II object groups as defined in RFC 1213 and

RFC 1573:

System Group Objects

Interfaces Group Objects – Supported for the DDS network interface, DTE

port, Terminal port, 10BaseT port, and the IMC as defined in RFC 1573, the

Evolution of the Interfaces Group.

— Interfaces Group Objects

— Extension to Interface Table (ifXTable)

— Interface Stack Group Objects

— Interface Test Group Objects

IP Group Objects

ICMP (Internet Control Management Protocol) Group

TCP (Transmission Control Protocol) Group

UDP (User Datagram Protocol) Group

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MIB Descriptions

Transmission Group Objects. Supported on the:

— DDS network interface using the DDS Enterprise MIB.

— User Data (DTE) port and Terminal port using the RS-232-like MIB.

— 10BaseT port using the Ethernet-like MIB.

SNMP Group

The following MIB II groups are not supported:

Address Translation Group

Exterior Gateway Protocol (EGP) Group

System Group

System Group objects are fully supported by the unit, as shown in Table C-1.

Table C-1. System Group Objects

Object

Description

Setting/Contents

sysDescr

(system 1)

Provides a full name and version

identification for the system’s

hardware and software.

PARADYNE DDS Leased Line DSU;

Model: 7612-A1-201;

S/W Release: yy.yy.yy;

H/W Revision: zzzz-zzz;

Serial Number: sssssss

sysObjectID Identifies the network

1.3.6.1.4.1.1795.1.14.2.5.1.1

(system 2)

management subsystem.

sysContact

(system 4)

Provides the textual identification

of the contact person for this

managed unit.

ASCII character string, as set by the

user.

sysName

(system 5)

Provides an administrative

ASCII character string, as set by the

user.

assigned name for this managed

unit.

sysLocation Provides the physical location for ASCII character string, as set by the

(system 6)

this managed unit.

user.

sysServices Functionality supported:

Object is set to 1+2+4+8 (15).

(system 7)

H physical (1) – Layer 1

functionality for all interfaces.

H datalink/subnetwork (2) –

Layer 2 functionality ( PPP) for

all management links.

H internet (4) – Layer 3

functionality (IP) for all

management links.

H end-to-end (8) – Layer 4

functionality (TCP/UDP) for all

management links.

The unit supports a 127-character string for this object. An error message is sent to

the NMS if an attempt is made to write (set) more than 127 characters.

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MIB Descriptions

Interfaces Group

The Interfaces Group as defined in RFC 1573 consists of an object indicating the

number of interfaces supported by the unit and an interface table containing an

entry for each interface. Since RFC 1573 is an SNMPv2 MIB, it is converted to

SNMPv1 for support by the unit. Table C-2 provides clarification for objects

contained in the Interfaces group when it is not clear how the object definition in

RFC 1573 is supported by the unit.

Table C-2. Interfaces Group Objects (1 of 4)

Object

Description

Setting/Contents

ifNumber

(interfaces 1)

Specifies the number

of interfaces for this

unit in the ifTable.

ifIndex

(ifEntry 1)

Provides the index to

the interface table

(ifTable) and to other

tables as well.

Indexes and values:

1 – reserved

2 – Terminal port

3 – Ethernet port

When an unsupported

index is entered (e.g.,

1 and 5), noSuchName

is returned.

4 – DDS network interface

5 – reserved

6 – User Data (DTE) port

7 – In-band Management Channel

ifDescr

(ifEntry 2)

Supplies text for each

Interface:

Text Strings for each interface:

H Terminal

H “Terminal Port; PARADYNE DDS Leased

Line DSU; Hardware Version [Hardware

Revision]”; Software Version: [Software

Revision].

H Ethernet

H “Ethernet Port; PARADYNE DDS Leased

Line DSU; Hardware Version [Hardware

Revision]”; Software Version: [Software

Revision].

H DDS Network

H User Data Port

H “DDS Network; PARADYNE DDS Leased

Line DSU; Hardware Version [Hardware

Revision]”; Software Version: [Software

Revision].

H “User Data Port; PARADYNE DDS Leased

Line DSU; Hardware Version [Hardware

Revision]”; Software Version: [Software

Revision].

H In-band

Management

Channel

H “In-band Management Channel;

PARADYNE DDS Leased Line DSU;

Hardware Version [Hardware Revision]”;

Software Version: [Software Revision].

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MIB Descriptions

Table C-2. Interfaces Group Objects (2 of 4)

Object

Description

Setting/Contents

ifType

(ifEntry 3)

Identifies the interface

type based on the

physical/link

protocol(s), right below

the network layer.

Supported values:

H ethernetCsmacd(6) – Used for the

Ethernet port.

H other(1) – Used for the DDS network.

H ppp(23) – Used for the In-band

Management Channel.

H rs232(33) – Used for the Terminal port.

H v35(45) – Used for the User Data port.

ifMtu

(ifEntry 4)

Identifies the largest

datagram that can be

sent or received on an

interface (Ethernet port

or IMC).

Number of octets.

ifSpeed

(ifEntry 5)

Provides the current

bandwidth for the

interface in bits per

second.

H Ethernet Port – The data rate for the port.

H Terminal port – Configured data rate for

the port.

H DDS – Line rate of 56,000 or 64,000 bps,

reflecting the line rate detected by the unit.

H User data (DTE) port – Current data rate of

the port (DDS operating rate minus IMC

rate).

H In-band Management Channel –

Configured data rate for the In-band

Management Channel.

ifAdminStatus Provides interface

H up(1) – The interface is enabled.

H down(2) – The interface is disabled.

(ifEntry 7)

status. Supported as

read-only.

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MIB Descriptions

Table C-2. Interfaces Group Objects (3 of 4)

Object

Description

Setting/Contents

ifOperStatus

(ifEntry 8)

Specifies the current

operational state of the

interface.

H Ethernet port

– up(1) – No alarms

– down(2) – Alarms

– testing(3) – Test active

H Terminal port. Always up(1); never in

testing(3) state.

H User Data Port

– up(1) – No alarms

– down(2) – Alarms

– testing(3) – Test active

H DDS Network Interface

– up(1) – DTR on, if supported by the

DTE

– down(2) – DTR off, if supported by the

DTE

– testing(3) – Test active

H In-band Management Channel. When

enabled, up and down are based on the

current state of the physical and link layer

protocols.

– up(1) – Operational and no active test

on the DDS network interface

– down(2) – Not operational or disabled

– testing(3) – Test active on DDS network

interface

ifLastChange

(ifEntry 9)

Indicates the amount

of time the interface

has been up and

running.

Contains the value of sysUpTime object at

the time the interface entered its current

operational state.

Collects input statistics An integer number.

on data received by

ifInOctets

(ifEntry 10)

the interface.

ifInUcastPkts

(ifEntry 11)

Applies to the IMC and

the Ethernet port.

Statistics are not

collected if the

Ethernet port is

disabled.

ifInDiscards

(ifEntry 13)

ifInErrors

(ifEntry 14)

ifInUnknown

Protos

(ifEntry 15)

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MIB Descriptions

Table C-2. Interfaces Group Objects (4 of 4)

Object

Description

Setting/Contents

Collects output

statistics on data

received by the

interface.

An integer number.

ifOutOctets

(ifEntry 16)

ifOutUcastPkts

(ifEntry 17)

Applies to the IMC and

the Ethernet port.

Statistics are not

collected if the

ifOutDiscards

(ifEntry 19)

Ethernet port is

disabled.

ifOutErrors

(ifEntry 20)

Extension to Interface Table (ifXTable)

This extension contains additional objects for the Interface table. Table C-3 shows

the objects supported.

Table C-3. Extension to Interface Table (ifXTable)

Object

Description

Setting/Contents

ifName

(ifXEntry 1)

Provides name of the

interface.

Interface text strings:

H Ethernet Port

H Terminal Port

H DDS Network

H User Data Port

H In-band Management Channel

ifLinkUpDown- Indicates whether the link is Only supports DDS network and User

TrapEnable

(ifXEntry 14)

up or down, or enterprise-

specific traps should be

generated.

data port.

SNMP Traps must be enabled for the

unit. See Table A-9, SNMP Traps

Options.

ifHighSpeed

(ifXEntry 15)

Reflects the ifSpeed setting This object is supported as read-only.

for the interface.

ifConnector-

Present

(ifXEntry 17)

Indicates whether there is a true(1) – Will always have this value for

physical connector for the

interface.

the DDS network, Ethernet port,

Terminal port, and User Data port.

false(2) –Will always have this value for

the In-band Management Channel.

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MIB Descriptions

Interface Stack Group

The Interface Stack Group is used by the unit to show the relationship between a

logical interface and a physical interface. Table C-4 provides clarification for

objects contained in the Interface Stack group when it is not clear how the object

definition in RFC 1573 is supported by the unit.

Table C-4. Interface Stack Group Objects

Object

Description

Setting/Contents

ifStackHigher- Provides the index that

Layer corresponds to the higher

(ifStackEntry1) sublevel specified by

ifStackLowerLayer.

When the In-band Management Channel

is enabled, this object for the DDS

network interface is set to the ifIndex of

the In-band Management Channel. All

other ifStackHigherLayer objects will

have a value of zero.

ifStackLower-

Layer

(ifStackEntry2) sublevel specified by

ifStackHigherLayer.

Provides the index that

corresponds to the lower

When the In-band Management Channel

is enabled, this object for the In-band

Management Channel is set to the

ifIndex of the DDS network interface. All

other ifStackLowerLayer objects will

have a value of zero.

ifStackStatus

(ifStackEntry3) status compared to the

Specifies the stack group’s

H When ifStackStatus set to active –

maps to ifOperStatus set to up(1) or

testing(3).

interface’s ifOperStatus.

Supported as a read-only

variable.

H When ifStackStatus set to not in

service – maps to ifOperStatus set to

down(2).

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MIB Descriptions

Interface Test Table

The unit uses the Interface Test table to provide access to additional tests such

as loopbacks and pattern tests, which are not included in the Interfaces Group of

MIB II. Interface Test Group objects are shown in Table C-5.

Table C-5. Interface Test Group Objects (1 of 2)

Object

Description

Setting/Contents

ifTestID

(ifTestEntry 1)

Provides a unique identifier Set by an SNMP Manager before the

for the current request of test is started. The unit then increments

the interface’s test. Ensures the previous value. The value is then

that the results of the test

are for that request. This

handles the rare condition

where another SNMP

Manager starts a test

immediately after

checked after the test has completed.

completion of a previous

test, but before the

previous test results are

received by the first SNMP

manager.

ifTestStatus

(ifTestEntry2)

Indicates the test status of

the interface.

H Set to inUse(2) by an SNMP

Manager before a test is started.

H Set to notInUse(1) by the unit when

the test has completed. Also set to

notInUse(1) by the unit if the SNMP

Manager fails to set an ifTestType

within 5 minutes.

ifTestType

(ifTestEntry 3)

A control variable used to

start/stop user-initiated

tests on the interface.

Provides the following

capabilities:

The following objects use identifiers to

control tests on the User Data port

interface:

H noTest (0 0) – Stops the test in

progress on the interface.

H Start/stop user data port

H testLoopDTE (ifTestType 2) – Starts

a Local Loopback (DTE) on the

interface.

loopback

H Start/stop send pattern

on the user data port

H testMon511 (ifTestType 4) – Starts a

H Start/stop the monitor

test pattern on the user

data port

Monitor 511 test on the interface.

H testSend511 (ifTestType 6) – Starts a

Send 511 test on the interface.

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MIB Descriptions

Table C-5. Interface Test Group Objects (2 of 2)

Object

Description

Setting/Contents

ifTestCode

(ifTestEntry 5)

Contains a code which is

more specific about the test

results.

Supports the following values:

H none (ifTestCode 1) – No further

information is available. Used for

send pattern/code and loopback tests.

H inSyncNoBitErrors (ifTestCode 2) –

A 511 monitor pattern test has

synchronized on the pattern and has

not detected any bit errors.

H inSyncWithBitErrors

(ifTestCode 3) – A 511 monitor pattern

test has synchronized on the pattern

and has detected bit errors.

H notInSync (ifTestCode 4) – A 511

monitor test pattern has not

synchronized on the requested

pattern.

ifTestOwner

(ifTestEntry 6)

Used by an SNMP

Manager to identify the

The SNMP Manager sets the object to

its IP address when setting ifTestID and

current owner of the test for ifTestStatus.

the interface.

Generic Receive Address Table

Not supported by the unit.

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MIB Descriptions

IP Group

The Internet Protocol Group objects are supported by the unit for all data paths

that are currently configured to carry IP data to/from the unit. All of the objects in

the IP Group, except for the IP Address Translation table, are fully supported.

Table C-6 provides clarification for objects contained in the IP group when it is not

clear how the object definition in MIB II is supported by the unit.

Table C-6. IP Group Objects (1 of 2)

Object

Description

Setting/Contents

ipForwarding

(ip1)

Specifies whether the unit

is acting as an IP gateway

for forwarding of datagram

received by, but not

Supports only the following value:

H forwarding(1) – The unit is acting as

a gateway.

addressed to, the unit.

ipAddrTable

(ip20)

The address table.

Supported.

ipAdEntAddr

An IP address supported by Indexes for tables must be unique.

(ipAddrEntry 1) the unit which serves as an Therefore, only one ifIndex can be

index to the address table.

displayed for each IP address supported

by the device. If the same IP address is

configured for multiple interfaces, or for

default IP addresses, the ipAddrTable

will not display all of the interfaces that

support a particular IP address.

ipAdEntIfIndex If this object has a greater

(ipAddrEntry 2) value than the ifNumber,

then it refers to a

None

proprietary interface not

currently implemented by

the MIB II Interface Group.

ipRouteTable

(ip21)

Supported as read/write.

However, use caution when

adding or modifying routes.

To delete a route, set object to invalid.

To modify a route, change fields in the

desired entry of the routing table

If it is absolutely necessary (indexed by ipRouteDest).

to add a route, the route

To add a route, specify values for a table

should only be added to the

connected device (device

closest to the destination).

Internal routing will continue

the route to the other

devices.

entry for which the index (ipRouteDest)

does not already exist. The following

objects must be specified:

H ipRouteDest – Serves as an index to

the routing table. Only one route per

destination can appear in the table. To

ensure that no duplicate destinations

appear in the routing table, the

ipRouteDest object will be treated as

described in the IP Forwarding Table

MIB (RFC 1354).

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MIB Descriptions

Table C-6. IP Group Objects (2 of 2)

Object

Description

Setting/Contents

ipRouteTable

(ip21)

(Continued)

H ipRouteIfIndex – If this object has a

greater value than the ifNumber, then

it refers to a proprietary interface not

currently implemented by the MIB II

Interface Group. Do not delete route

entries with an unrecognized

ipRouteIfIndex. When setting this

object via SNMP, the ipRouteIfIndex

value can only assume an appropriate

value of IfIndex defined for a

particular device type.

Objects that will be set to the default

value if not specified in the Set PDU

used to add a route:

H ipRouteMetric1 – Defaults to 1 hop.

H ipRouteType – Defaults to indirect.

H ipRouteMask – Defaults to what is

specified in the MIB description.

Objects that are not used by this unit:

H ipRouteMetric2, ipRouteMetric3,

ipRoutemetric4, ipRoutemetric5 –

Default to –1.

H ipRouteNextHop – Defaults to 0.0.0.0.

Do not specify the following read-only

objects in the Set PDU used to add a

route:

H ipRouteProto – Set to netmgmt(3) by

the software. May have the following

values:

– other(1) – Temporary route added

by IP.

– local(2) – Route added or changed

due to User configuration.

– netmgmt(3) – Route added or

changed by SNMP set.

– icmp(4) – Route added or changed

by ICMP.

– rip(8) – Route added or changed

by RIP (or similar proprietary

protocol).

H ipRouteAge – Reflects the value of

the time-to-live for the route (in

seconds). Defaults to 999 (permanent

route).

H ipRouteInfo – Unused; set to {0, 0}.

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MIB Descriptions

ICMP Group

The ICMP (Internet Control Management Protocol) Group objects are fully

supported.

TCP Group

The TCP Group objects are fully supported, with the exception of tcpConnState

object, which will be read-only, since deleteTCB (12) is not supported and is the

only value which can be set.

UDP Group

The UDP Group objects are fully supported.

Transmission Group

Objects in the Transmission Group are supported on the DDS network interface,

User Data port, Ethernet port, and Terminal port. These objects are defined

through other Internet-standard MIB definitions rather than within MIB II.

Table C-7 shows how Transmission Group objects are supported.

Table C-7. Transmission Group Objects

Object

Description

dot3

(transmission 7)

Supported on the Ethernet port. Defined by the Ethernet-like

MIB (RFC 1643).

rs232

(transmission 33)

Supported on the User Data port and Terminal port. Defined by

the RS-232-like MIB (RFC 1659).

enterprise

(transmission 22)

Supported on the DDS network interface by Paradyne

Enterprise MIB.

SNMP Group

The SNMP Group objects that apply to a management agent are fully supported.

The following objects apply only to an NMS and return a zero value if accessed.

snmpInTooBig (snmp 8)

snmpInNoSuchNames (snmp 9)

snmpInBadValues (snmp 10)

snmpInReadOnlys (snmp 11)

snmpInGenErrs (snmp 12)

snmpInGetResponses (snmp 18)

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MIB Descriptions

snmpInTraps (snmp 19)

snmpOutGetRequests (snmp 25)

snmpOutGetNexts (snmp 26)

snmpOutSetRequests (snmp 27)

RS-232-Like MIB, RFC 1659

Supported for the User Data port and the Terminal port. RFC 1659 is an SNMPv2

MIB, but is converted to an SNMPv1 MIB to support this unit. This MIB consists of

one object and five tables.

Number of RS-232-Like Ports Object.

General Port Table Objects.

Asynchronous Port Table Objects. Not supported for the User Data port.

Synchronous Port Table Objects. Not supported for the Terminal port.

Input Signal Table Objects. Not supported for the Terminal port.

Output Signal Table Objects. Not supported for the Terminal port.

Number of RS-232-Like Ports Object

Supported as documented in the RFC.

General Port Table Objects

The General Port Table Objects contains configuration options for the

RS-232-Like interfaces. Clarification for objects contained in Table C-8 as it

applies to the unit is provided below.

Table C-8. General Port Table Objects (1 of 2)

Object

Description

Setting/Contents

rs232PortType

Identifies the port hardware Supports only the following values:

(rs232PortEntry 2) type.

rs232(2) – Identifies the Terminal

port.

v35(5) – Identifies the synchronous

User Data port which is compatible

with the V.35 standard.

rs232PortInSig

Number

Contains the number of

input signals (in the input

The value is 2 for synchronous user

data port and 0 for the Terminal port.

(rs232PortEntry 3) signal table) that can be

detected.

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MIB Descriptions

Table C-8. General Port Table Objects (2 of 2)

Object

Description

Setting/Contents

rs232PortOutSig

Number

Contains the number of

output signals (in the output Data port and 0 for the Terminal port.

The value is 3 for synchronous User

(rs232PortEntry 4) signal table) that can be

asserted.

rs232PortInSpeed Contains the port’s input

(rs232PortEntry 5) speed in bits per second.

Supports the following speeds for

the:

H User data port: 64,000, 62,400,

60,000, 56,000, 54,400, 52,000,

48,000.

H Terminal port: 2400, 4800,

9600,14,400, 19,200, 28,800,

38,400.

rs232PortOut

Speed

Contains the port’s output

speed in bits per second.

Supports the following speeds for

the:

(rs232PortEntry 6)

The rs232PortOutSpeed

object has the same values

as the rs232PortInSpeed

object.

H User data port: 64,000, 62,400,

60,000, 56,000, 54,400, 52,000,

48,000.

H Terminal port: 2400, 4800,

9600,14,400, 19,200, 28,800,

38,400.

The User Data port speed is a read-only value that can only differ from the DDS

network speed if the In-band Management Channel is enabled.

The following are not supported:

rs232PortInFlowType (rs232PortEntry 7)

rs232PortOutFlowType (rs232PortEntry 8)

Asynchronous Port Table Objects

The Asynchronous Port Table contains an entry for the Management port when

the port is configured for asynchronous operation and for the Terminal port. For

this unit, entries in the table that are counters (rs232AsyncPortEntry 6–8) are

used to collect statistics only and are not supported. Table C-9 shows the

Asynchronous Port Table objects supported.

Table C-9. Asynchronous Port Table Objects (1 of 2)

Object

Description

Setting/Contents

rs232AsyncPort Specifies the number of bits Supports only the following values:

Bits

(rs232Async

PortEntry 2)

in a character.

7 – 7-bit characters

8 – 8-bit characters

rs232AsyncPort Specifies the number of

Supports only the following values:

one(1) – One stop bit

StopBits

stop bits supported.

(rs232Async

PortEntry 3)

two(2) – Two stop bits

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MIB Descriptions

Table C-9. Asynchronous Port Table Objects (2 of 2)

Object Description Setting/Contents

rs232AsyncPort Specifies the type of parity

Supports only the following values:

none(1) – No parity bit

odd(2) – Odd parity

Parity

used by the port.

(rs232Async

PortEntry 4)

even(3) – Even parity

rs232AsyncPort Specifies the ability to

Supports only the following value:

AutoBaud

(rs232Async

PortEntry 5)

automatically sense the

input speed of the port.

disabled(2) – Does not support

Autobaud.

Synchronous Port Table Objects

The Synchronous Port Table contains an entry for the synchronous user data port

when this port is configured for synchronous operation. For this unit, entries in the

table that are counters (rs232SyncPortEntry 3–7) are used to collect statistics

only and are not supported. Clarification for objects contained in this table as it

applies to the unit is provided in Table C-10.

Table C-10. Synchronous Port Table Objects (1 of 2)

Object

Description

Setting/Contents

rs232SyncPort Specifies whether this

Supports only the following value:

Role

(rs232Sync

PortEntry 8)

device interface is a DTE or

DCE.

dce(2) – The port acts as a DCE.

rs232SyncPort Specifies the bit encoding

Supports only the following value:

Encoding

(rs232Sync

PortEntry 9)

technique that this port

uses.

nrz(1) – The port uses non-return to

zero encoding.

rs232SyncPort Specifies the method used

Supports only the following values:

RTSControl

(rs232Sync

PortEntry 10)

to control the RTS signal.

Refer to Data Port Options,

Table A-3.

controlled(1) – For User Data port, this

value is used when the Data Port option

Carrier Control by RTS is set to

Switched.

constant(2) – For User Data port, this

value is used when the Data Port option

Carrier Control by RTS is set to

Constant.

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MIB Descriptions

Table C-10. Synchronous Port Table Objects (2 of 2)

Object

Description

Setting/Contents

rs232SyncPort Reports the interval (in

RTSCTSDelay milliseconds) that the port

Supports only the following read-only

value:

(rs232Sync

PortEntry 11)

waits after RTS is asserted

before asserting CTS.

integer number – represents

milliseconds. It is only valid for the user

data port, when Carrier Control by RTS

is set to Switched and corresponds to

approximately 21 bit time intervals at the

operating DDS rate.

rs232SyncPort Specifies the port’s mode of Supports only the following value:

Mode

(rs232Sync

PortEntry 12)

data transfer.

fdx(1) – Full-duplex

The following are not supported:

rs232SyncPortIdle Pattern (rs232SyncPortEntry 13)

rs232SyncPortMinFlags (rs232SyncPortEntry 14)

Input Signal Table Objects

The Input Signal Table contains entries for the input signals that can be detected

by the unit for the synchronous user data port. Clarification for objects contained

in this table as it applies to the unit is provided in Table C-11.

Table C-11. Input Signal Table Objects

Object

Description

Setting/Contents

rs232InSigName

(rs232InSigEntry 2) of a hardware input signal.

Contains the identification

Supports only the following values:

rts(1) – Request To Send

dtr(4) – Data Terminal Ready

rs232InSigState

Contains the current signal Supports only the following values:

(rs232InSigEntry 3) state.

on(2) – The signal is asserted

off(3) – The signal is deasserted

rs232InSigChanges Indicates the number of

(rs232InSigEntry 4) times that a signal has

changed from on to off, or

The object is incremented each

time that the signal is sampled

(every 100 ms) and the signal state

is different from the previous state.

off to on.

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MIB Descriptions

Output Signal Table Objects

The Output Signal Table contains entries for the output signals that can be

asserted by the unit, for the synchronous User Data port. Clarification for objects

contained in this table as it applies to the unit is provided in Table C-12.

Table C-12. Output Signal Table Objects

Object

Description

Setting/Contents

rs232OutSigName

Contains the identification

Supports only the following

(rs232OutSigEntry 2) of a hardware output signal. values:

cts(2) – Clear To Send

dsr(3) – Data Set Ready

dcd(6) – Received Line Signal

Detector

rs232OutSigState

(rs232OutSigEntry 3) state.

Contains the current signal Supports only the following

values:

on(2) – The signal is asserted

off(3) – The signal is deasserted

rs232OutSigChanges Indicates the number of

(rs232OutSigEntry 4) times that a signal has

changed from on to off, or

Increments the object each time

that the signal is sampled (every

100 ms) and the signal state is

different from the previous state.

off to on.

Ethernet-Like MIB, RFC 1643

The unit supports the Ethernet-Like MIB, RFC 1643 for all objects except:

dot3TestTdr, and

dot3StatsEtherChipSet

Enterprise MIB

The following Paradyne Enterprise MIB Objects are supported by the unit:

Device Configuration Variable (pdn-dev Config 7)

Port Usage Table, pdn-devPortUsage (pdn-interfaces 3)

DDS Interface Specific Definitions, pdn-dds (pdn-interfaces 2)

Device Security, pdn-security (pdn-common 8)

Device Traps, pdn-traps pdn-common 9)

Device Control, pdn-control (pdn-common 10)

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MIB Descriptions

Device Configuration Variable (pdn-common 7)

The variable devConfigAreaCopy in the devConfigArea group is supported. This

variable allows the entire contents of one configuration area to be copied into

another configuration area. The unit only supports the values shown in

Table C-13.

Table C-13. Device Configuration Variable

Object

Description

Setting/Contents

devConfig A “get” of this object will always return noOp. noOp(1)

AreaCopy

Copy from active area to customer 1 area.

Copy from active area to customer 2 area.

Copy from customer 1 area to active area.

active-to-customer1(2)

active-to-customer2(3)

customer1-to-active(4)

customer1-to-customer2(5)

Copy from customer 1 area to customer 2

area.

Copy from customer 2 area to active area.

customer2-to-active(6)

Copy from customer 2 area to customer 1

area.

customer2-to-customer1(7)

Copy from factory area to active area. There factory1-to-active(8)

is only one factory area for the unit.

Copy from factory area to customer 1 area.

Copy from factory area to customer 2 area.

factory1-to-customer1(9)

factory1-to-customer2(10)

DDS Interface Specific Definitions, pdn-dds (pdn-interfaces 2)

The DDS Interface Specific Definitions contain objects that are used to manage

the DDS Network Interface. The unit supports all objects except the ASCII

alarms.

Device Security, pdn-security (pdn-common 8)

Use the Device Security table to control the number of SNMP managers that may

access the unit, as well as the unit access level (read or read/write). Fully

supported by the unit.

Device Traps, pdn-traps (pdn-common 9)

Controls the SNMP managers to which the unit reports traps. Fully supported by

the unit.

Device Control, pdn-control (pdn-common 10)

Uses the devControlReset object to reset the unit. Fully supported by the unit.

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Standards Compliance for

SNMP Traps

Overview

This appendix describes the unit’s compliance with SNMP standards and any

special operational features for the SNMP traps supported. The unit supports

user interface traps and enterprise-specific traps.

Trap: warmStart

SNMP Trap

Description

Possible Cause

warmStart

The unit has reinitialized itself. H Reset command.

The trap is sent after the unit

resets itself and stabilizes.

H Power disruption.

There are no variable-bindings.

Trap: authentificationFailure

SNMP Trap

Description

Possible Cause

authenticationFailure Failed attempts to access the

unit.

H SNMP message not properly

authenticated.

There are no variable-bindings. H Three unsuccessful attempts

were made to enter a correct

H IP address security is

enabled, and a message was

received from SNMP

manager whose address was

not on the list of approved

managers.

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Standards Compliance for SNMP Traps

Traps: linkUp and linkDown

The following table describes the conditions that define linkUp and linkDown for

each interface:

linkUp/Down

Variable-Bindings

Interface

Possible Cause

Physical Sublayer – Represented by the entry in the MIB II Interfaces Table.

DDS network

H ifIndex (RFC 1573)

H linkDown – One or more

alarm conditions are active on

the interface.

(Supported by the

media-specific DDS

Enterprise MIB.)

H ifAdminStatus

(RFC 1573)

Alarm conditions include:

– No Signal

H ifOperStatus (RFC 1573)

H ifType (RFC 1573)

– Out of Service

– Out of Frame

H ddsStatus (DDS

Enterprise MIB)

– Crossed Pair Detected

– In-band Framing Error

– Excessive Bipolar Violations

(BPVs)

H linkUp – No alarms on the

interface.

Synchronous User

Data Port

H ifIndex (RFC 1573)

H linkDown – The Alarm

condition active on the

interface is DTR Off. The DTR

alarm condition only generates

a linkUp/linkDown trap if the

DTE supports the DTR lead.

H ifAdminStatus

(Supported by the

media-specific

RS232-Like MIB.)

(RFC 1573)

H ifOperStatus (RFC 1573)

H ifType (RFC 1573)

H linkUp – No alarm on the

interface.

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Standards Compliance for SNMP Traps

Traps: enterpriseSpecific

The enterpriseSpecific trap indicates that an enterprise-specific event has

occurred. The Specific-trap field in the Trap PDU identifies the particular trap that

occurred. The following table lists the enterprise specific traps supported by the

unit:

Trap

What It Indicates

Possible Cause

enterpriseSelfTestFail(2)

A hardware failure of the unit Failure of one or more of

is detected during the unit’s

the unit’s hardware

self-test. The trap is

components.

generated after the unit

completes initialization.

There are no

variable-bindings.

enterpriseDeviceFail(3)

enterpriseTestStart(5)

An internal device failure.

Operating software has

detected an internal device

failure.

There are no

variable-bindings.

A test is running.

At least one test has been

started on an interface.

enterpriseConfigChange(6) The configuration changed

via the user interface or an

SNMP manager. The trap is

sent after 60 seconds have

elapsed without another

Configuration has been

changed via the user

interface or an SNMP

manager.

change. This suppresses the

sending of numerous traps

when multiple changes are

made in a short period of

time, as is typically the case

when changing configuration

options.

There are no

variable-bindings.

enterpriseTestStop(105)

All tests have been halted.

All tests have been halted

on an interface.

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Standards Compliance for SNMP Traps

The tests that affect the enterpriseTestStart, enterpriseTestStop, and the

variable-binding are different for each particular interface. Diagnostic tests are

only supported on the physical DDS network and user data port interfaces. The

specific tests and variable-bindings are described in the following table:

enterpriseTestStart/Stop

Variable-Bindings

Interface

Possible Cause

Physical Sublayer

DDS network

H ifIndex (RFC 1573)

H enterpriseTestStart – Any one

of the following tests is active

on the interface:

H ifAdminStatus

(RFC 1573)

– DSU Loopback

– CSU Loopback

– Send 511 pattern

– Monitor 511 pattern

H ifOperStatus (RFC 1573)

H ifType (RFC 1573)

H ddsTestType (DDS

Enterprise MIB)

H enterpriseTestStop – No

longer has any tests running

on the interface.

Synchronous User

Data Ports

H ifIndex (RFC 1573)

H ifTestType – Any one of the

following tests is active on the

port:

H ifAdminStatus

(RFC 1573)

– Local Loopback (DTE)

– Send 511 pattern

H ifOperStatus (RFC 1573)

H ifType (RFC 1573)

– Monitor 511 pattern

H ifTestType (RFC 1573)

H ifTestType – No longer has

any tests running on the port.

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Cables and Pin Assignments

Overview

The following sections provide pin assignments for the:

Terminal Port (EIA-232) Connector

DTE Port (V.35) Connector

Standard EIA-232-D Crossover Cable

Standard Null Modem Cable

10BaseT Connector

Modular RJ48S DDS Network Interface Connector

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Cables and Pin Assignments

Terminal Port (EIA-232) Connector

The Terminal port connects to a PC or VT100-compatible terminal.

Signal

Direction

Pin #

Transmit Data (TXD)

Received Data (RXD)

Request to Send (RTS)

Clear to Send (CTS)

Data Set Ready (DSR)

Signal Ground (SG)

Carrier Detect (CD)

To DSU (In)

From DSU (Out)

To DSU (In)

From DSU (Out)

—

From DSU (Out)

Data Terminal Ready (DTR) To DSU (In)

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Cables and Pin Assignments

DTE Port (V.35) Connector

The following table provides the pin assignments for the 34-position

V.35 connector to the user data terminal equipment.

34-Pin

Socket

Connector

ITU CT

Number

Signal

Direction

Signal Ground/Common

Request to Send (RTS)

Clear to Send (CTS)

Data Set Ready (DSR)

102

—

105

To DSU (In)

From DSU (Out)

106

107

Received Line Signal Detector

(RLSD or LSD)

109

Data Terminal Ready (DTR)

Remote Loopback (RL)

Local Loopback (LL)

108/1, /2 To DSU (In)

140

141

103

To DSU (In)

Transmitted Data (TXD)

P (A)

S (B)

Received Data (RXD)

104

From DSU (Out)

To DSU (In)

R (A)

T (B)

Transmitter Signal Element Timing — 113

DTE Source (XTXC or TT)

U (A)

W (B)

Receiver Signal Element Timing —

DCE Source (RXC)

115

From DSU (Out)

V (A)

X (B)

Transmitter Signal Element Timing — 114

DCE Source (TXC)

Y (A)

AA (B)

Test Mode Indicator (TM)

142

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Cables and Pin Assignments

Standard EIA-232-D Crossover Cable

A standard crossover cable can be used to connect the Terminal port to an

external modem. This type of cable can be used for synchronous or

asynchronous connections.

Pin 14

Pin 1

Plug

Pin 14

Pin 1

Pin 25

Pin 13

Pin 25

Pin 13

Chassis Ground

TXD

RXD

RTS

TXD

RXD

RTS

DSR

Signal Ground

CD (RLSD)

Signal Ground

CD (RLSD)

RXC

DTR

RXC 17

DTR 20

XTXC

XTXC 24

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Cables and Pin Assignments

Standard Null-Modem Cable

A standard null-modem cable can be used to connect the Terminal port to an

external modem. This type of cable is used for asynchronous connections.

Pin 14

Pin 1

Plug

Pin 14

Pin 1

Pin 25

Pin 13

Pin 25

Pin 13

Chassis Ground

TXD

Chassis Ground

TXD

RXD

RTS

CTS

DTR

Signal Ground

CD (RLSD)

Signal Ground

CD (RLSD)

DSR

DSR 20

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Cables and Pin Assignments

10BaseT Connector

Use a standard 10BaseT cable to connect the DSU to an Ethernet LAN. A cable

is provided with the DSU.

The following table defines the pinouts for the 10BaseT port. It is an 8-pin,

unkeyed jack.

Use

Pin #

Transmitted Data +

Transmitted Data –

Received Data +

Received Data –

NC = Not connected (unused).

Modular RJ48S DDS Network Interface Connector

Network access is via a modular cable with an RJ48S keyed plug connector on

each end.

Use

Circuit Pin #

Transmitted data to the local loop

–

Received data from the local loop

NC = Not connected (unused).

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Technical Specifications

Table F-1. Model 7612 DSU Technical Specifications (1 of 2)

Item

Specifications

Housing

Height (including feet)

Height (without feet)

Width

2.1 inches (5.3 cm)

2.0 inches (5.1 cm)

8.7 inches (22.1 cm)

6.2 inches (15.7 cm)

Depth (case)

Depth (case and connectors) 6.5 inches (16.5 mm)

Weight

Power

1.3 pounds (0.6 kg)

Normal service voltage

range

Input: 120 Vac +12 Vac, 60 Hz +3 Hz

4.9 watts (max.) at 120 Vac

Approvals

FCC Part 15

Class A digital device

FCC Part 68

Refer to the equipment’s label for Registration Number.

Refer to the equipment’s label for approvals on product.

Refer to the equipment’s label for Certification Number.

Safety Certifications

Industry Canada CS-03

Interface and Connector

25-pin DB25 connector

34-pin MS34 connector

8-pin modular jack

EIA-232/ ITU V.24 (ISO 2110) for Terminal port

ITU V.35 (ISO 2593) for DTE Port

USOC RJ48S for Network port

Unkeyed for 10BaseT port

Physical Environment

Operating Temperature

Storage Temperature

Relative Humidity

32° to 122° F (0° to 50° C)

–4° to 158° F (–20° to 70° C)

5%—95% (noncondensing)

Shock and Vibration

Withstands normal shipping and handling

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Technical Specifications

Table F-1. Model 7612 DSU Technical Specifications (2 of 2)

Item

Specifications

Heat Dissipation

11.6 Btu/hr. (max.) at 120 Vac

Network Interface

Data rates

56 kbps and 64 kbps clear channel (CC)

56 kbps and 64 kbps

LADS data rates

Services supported

4-wire service

Terminal Port Data Rates

2.4, 4.8, 9.6, 14.4, 19.2, 28.8, and 38.4 kbps

Defaults: 9.6 kbps with 8 bits per character, 1 stop bit,

and no parity

Network Compatibility

ANSI T1.410–1992 and

AT&T Technical Reference

62310–1993

56 kbps and 64 kbps meeting desired loop loss

IP Connectivity

Up to 20 routes

NMS Compatibility

SNMP Network Manager

MIB II Object Groups

Supported

H ICMP group

H Interfaces group:

– DDS network

– DTE Data port

– Terminal port

– Ethernet port

H IP group

H SNMP group

H System group

H TCP group

H Transmission group:

– DDS network – DDS Enterprise MIB

– DTE Data port – RS-232-Like MIB

– Terminal port – RS-232-Like MIB

– 10BaseT port – Ethernet-Like MIB

H UDP group

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Technical Specifications

Table F-2. Model 7612 DTE Port Clock Rate

Line Operating Rate

In-Band Management

56 Kbps

64 Kbps (CC or LADS)

64,000 bps

Channel (IMC) Rate

0 (IMC disabled)

1,600 bps

56,000 bps

54,400 bps

52,000 bps

48,000 bps

62,400 bps

4,000 bps

60,000 bps

8,000 bps

56,000 bps

Table F-3. Model 7612 DSU LADS Connection Distances

Wire Diameter (AWG)

19 Gauge

(.0359I or

.9122 mm)

22 Gauge

(.0253I or

.643 mm)

24 Gauge

26 Gauge

(.0159I or

.404 mm)

(.0201I or

Data Rate

(kbps)

.511 mm)

10.84 mi

6.4 mi

4.50 mi

3.34 mi

(17.45 km)

(10.3 km)

(7.24 km)

(5.37 km)

10.69 mi

6.06 mi

4.47 mi

3.20 mi

(17.2 km)

(9.76 km)

(7.2 km)

(5.15 km)

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Glossary

agent

A software program housed within a device to provide SNMP functionality. Each SNMP

agent stores management information and responds to the manager’s request.

aggregate

ASCII

A single bit stream that combines two or more bit streams.

American Standard Code for Information Interchange. A 7-bit code that establishes

compatibility between data services. ASCII is the standard for data transmission over

telephone lines.

asynchronous

ATI

A data transmission that is synchronized by a transmission start bit at the beginning of

a character (five to eight bits) and one or more stop bits at the end.

ASCII Terminal Interface. This feature allows a device to be controlled from an

asynchronous terminal or through a Telnet session.

autobaud mode

An operational mode in which the DSU forces automatic setting of the DDS line rate/speed

(56 kbps or 64 kbps) as soon as a valid DDS network signal is detected.

BPV

CCA

CCITT

Bipolar Violation. A modified bipolar signaling method in which a control code is inserted.

Circuit Card Assembly. A printed circuit board to which separate components are attached.

Consultative Committee on International Telegraphy and Telephony. See ITU.

Carrier Detect. A signal indicating that energy exists on the transmission circuit.

Associated with Pin 8 on an EIA-232 interface.

channel

CMI

An independent data path.

Control Mode Idle. A control signal sent over the DDS line to indicate that no data is being

sent.

COM port

Communications port. A computer’s serial communications port used to transmit to and

receive data.

configuration option

CPE

Device software that sets specific operating parameters for the DSU.

Customer Premises Equipment. Terminating equipment supplied by either the customer or

some other supplier that is connected to the telecommunications network (e.g., DSUs,

terminals, phones, routers, modems).

crossed pair

CSU

An alarm condition in which the DDS receive and transmit pairs are crossed.

Channel Service Unit. The function of the DSU that protects the equipment beyond it from

damage due to disturbances on the DDS network, and regenerates the DDS signal to

meet DDS specifications.

CTS

DCE

Clear to Send. An EIA-lead standard for V.24 circuit CT 106; an output signal

(DCE-to-DTE).

Data Communications Equipment. The equipment that provides the functions required to

establish, maintain, and end a connection. It also provides the signal conversion required

for communication between the DTE and the network.

DDS

DMI

Digital Data Service. Provides digital communication circuits.

Data Mode Idle. Refers to a sequence of ones transmitted or received on the DDS

network.

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Glossary

DSR

DSU

DTE

DTR

EIA

Data Set Ready. An EIA-lead standard for V.24 circuit CT 107; an output signal

(DCE-to-DTE).

Data Service Unit. Data communications equipment that provides an interface between the

DTE and the digital network.

Data Terminal Equipment. The equipment, such as computers and printers, that provides

or creates data.

Data Terminal Ready. An EIA-lead standard for V.24 circuit CT 108; an input signal

(DTE-to-DCE).

Electronic Industries Association. This organization provides standards for the data

communications industry to ensure uniformity of interface between DTEs and DCEs.

EIA-232

The EIA’s standards defining the 25-pin interface between the DTE and DCE.

MIB objects unique to Paradyne devices.

Enterprise MIB

excessive BPV

An excessive bipolar violation condition results when at least one invalid bipolar violation

has occurred every 20 milliseconds for 2 seconds.

factory defaults

FCC

A predetermined set of configuration options for general operation.

Federal Communications Commission. Board of Commissioners that regulates all U.S.

interstate, intrastate, and foreign electrical communication systems that originate from the

United States.

frame relay

A switching interface that is designed to get frames from one part of the network to another

as quickly as possible.

full-duplex

HDLC

The capability to transmit in two directions simultaneously.

High-Level Data Link Control. A communications protocol defined by the International

Standards Organization (ISO).

ICMP

Internet Control Management Protocol. Internet protocol that allows for the generation of

error messages, tests packets, and information messages related to IP.

IMC

In-band Management Channel. A proprietary TDM channel used for IP connectivity.

A shared boundary between functional units.

interface

Internet Protocol. The TCP/IP standard protocol that defines the unit of information passed

across an Internet and provides the basis for packet delivery service. IP includes the ICMP

control and error message protocol as an integral part. The entire protocol suite is often

referred to as TCP/IP because TCP and IP are the two most fundamental protocols.

IP address

The IP address has a host component and a network component. The address is assigned

to hosts or workstations with direct Internet access to uniquely identify entities on the

Internet.

ITU

International Telecommunication Union, formerly known as CCITT. An advisory committee

established by the United Nations to recommend communications standards and policies.

LADS

Local Area Data Set is used to provide a point-to-point link between two devices (also

called LDM – limited distance modem).

LAN

Local Area Network. A network designed to connect devices over short distances, like

within a building.

latching loopback

LED

A loopback that is maintained until a specific release code is detected. A latching loopback

can only be initiated or terminated by the 64 kbps clear channel network service provider.

Light Emitting Diode. A status indicator that responds to the presence of a certain

conditions.

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Glossary

link layer protocol

The protocol that regulates the communication between two network nodes.

Local Loopback. An EIA-lead standard for V.24 circuit CT 141; an input signal

(DTE-to-DCE).

loopback

LSD

Used to test various portions of a data link in order to isolate an equipment or data line

problem. A diagnostic procedure that sends a test message back to its origination point.

Line Signal Detect. An EIA-lead standard for V.24 circuit CT 109; an output signal

(DCE-to-DTE).

manager (SNMP)

MIB

The device that queries agents for management information, or receives unsolicited SNMP

trap messages indicating the occurrence of specific events.

Management Information Base. The set of variables a device running SNMP maintains.

Standard, minimal MIBs have been defined, and vendors often have private enterprise

MIBs. In theory, any SNMP manager can talk to any SNMP agent with a properly defined

MIB. MIB-II refers to an extended management database that contains variables not

defined in the original MIB I.

multiplexing

NMS

A method for interleaving several access channels onto a single circuit for transmission

over the network.

Network Management System. A computer system used for monitoring and controlling

network devices.

node

A connection or switching point on the network.

non-latching

loopback

A loopback that is not maintained unless network loopback codes are interspersed with the

test data. A non-latching loopback can only be initiated or terminated by the 56 kbps

network service provider.

No Signal. A network-reported condition.

object (SNMP)

OOF

A specific item within the Management Information Base (MIB).

Out Of Frame. An error condition in which frame synchronization bits are in error. A

network-reported condition.

OOS

Out of Service. A digital network trouble signal.

Packet Assembler/Disassembler.

PAD

point-to-point circuit

PPP

A data network circuit with one control and one tributary device.

Point-to-Point Protocol. A link-layer protocol used by SNMP.

protocol

The rules that govern how devices exchange information on a network. It covers timing,

format, error control, and flow control during data transmission.

PSTN

Public Switched Telephone Network. A network shared among many users who can use

telephones to establish connections between two points.

reset

RFC

A reinitialization of the device that occurs at power-up or in response to a reset command.

Request for Comments. The set of documents that describes the standard specifications

for the TCP/IP protocol suite.

RIP

Routing Information Protocol. Specifies the routing protocol used between DSUs.

Receive Line Signal Detect. See CD.

RLSD

router

A device that makes decisions about the paths network traffic should take and forwards

that traffic to its destination. A router helps achieve interoperability and connectivity

between different vendor’s equipment, regardless of protocols used.

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Glossary

RS-232

RTS

An EIA standard for the 25-pin DCE/DTE interface. Same as EIA-232.

Request to Send. An EIA-lead standard for V.24 circuit CT 105; an input signal

(DTE-to-DCE).

RXC

RXD

Received Clock. An EIA-lead standard for V.24 circuit CT 115; an output signal

(DCE-to-DTE).

Received Data. An EIA-lead standard for V.24 circuit CT 104; an output signal

(DCE-to-DTE).

SDLC

SNMP

Synchronous Data Link Control. A standard data link protocol.

Simple Network Management Protocol. A generic internet network management protocol

that allows the device to be managed by any industry-standard SNMP manager.

subnet

An IP addressing standard in which a portion of the host address can be used to create

multiple network addresses that are logically a subdivision of the network address.

subnet address

The subnet portion of an IP address. In a subnetted network, the host portion of an IP

address is split into a subnet portion and a host portion using a subnet address mask. This

allows a site to use a single IP network address for multiple physical networks.

subnet mask

synchronous

An integer used with the IP address of the host to determine which bits in the host address

are used in the subnet address.

Data transmission that is synchronized by timing signals. Characters are sent at a fixed

rate.

TCP/IP

TDM

Transmission Control Protocol/Internet Protocol. Refer to IP.

Time Division Multiplexer. A device that enables the simultaneous transmission of multiple

independent data streams into a single high-speed data stream.

Telnet

Virtual terminal protocol in the Internet suite of protocols. Allows the user of one host

computer to log into a remote host computer and interact as the user for that host.

Test Mode. An EIA-lead standard for V.24 circuit CT 142; an output signal (DCE-to-DTE).

TXC

Transmit Clock. An EIA-lead standard for V.24 circuit CT 114; an output signal

(DCE-to-DTE).

TXD

Transmit Data. An EIA-lead standard for V.24 circuit CT 103; an input signal

(DTE-to-DCE).

UDP

V.35

User Datagram Protocol. An Internet protocol.

ITU-T standard for a high-speed, 34-pin, DCE/DTE interface.

WAN

Wide Area Network. A network that operates over long distances and spans a relatively

large geographic area (e.g., a country).

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Index

configuration

Numbers

option worksheets, B-1

configuration examples, 1-3

connectors

10BaseT port. See Ethernet port

511 test pattern, 7-4

access

DTE port (V.35), E-3

SNMP, 4-6, A-14

to the ATI, 4-1

administer login, 4-2

alarm

Terminal port, E-2

control, menu, 2-2

create login ID, 4-2

crossover EIA-232 cable, E-4

CTS

condition, 7-1

LED, 6-3

clear to send LED, 6-5

control, A-8

ASCII

alarm, 7-1

customer, configuration areas, 3-4

printable characters, 3-1

ATI

data port

DDS

cables

line rate, A-3

operating mode, A-2

defaults

crossover, E-4

DDS network, E-6

DTE (V.35), E-3

configuration option, 3-4

reload factory, 7-8

device

cables to order. See Startup Instructions

Carrier Control by RTS, A-8

Clear command, 6-6

clock rates, F-3

Disconnect Time, A-12

displaying, configuration options, 3-5

DM, data mode LED, 6-4

DSR Control, A-8

DTE port

clocking, inversion, A-7

ClrStats command, 6-6

community names, for SNMP, 4-6

clock rates, F-3

options, A-7

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Index

DTE test, 7-5

DTR

identity, 3-1

IMC

action, A-9

data terminal ready LED, 6-5

remote management, 1-1

Routing Information Protocol, A-6

subnet connection, 5-2

subnet mask, A-6

effective access

and screen contents, 2-3

to ATI, 4-3

Inactivity Timeout, A-12

installing rear connectors. See Startup Instructions

interface

EIA-232 pin assignments, E-2

Enterprise MIB

objects supported, C-17

SNMP traps, D-3

connections, 1-4

network status, 6-10

invert transmit clock, A-7

IP address

Ethernet cable, E-6

Ethernet port

connector, E-6

Ethernet port, A-9

IMC, A-6

default gateway address, A-10

SNMP manager, 4-6

trap manager, A-17

IP interfaces, 4-1, 5-2

Use, A-9

Ethernet-Like MIB

objects not supported, C-17

objects supported, C-17

external device, access, 4-1

keyboard functions, 2-5

factory defaults, for configuration options, 3-4

features, 1-1

LADS

connection distances, F-3

glossary, GL-1–GL-4

LAN adapter, addressing, 5-1

LAN cable, E-6

health and status, messages, 6-6

LEDs, 6-2

link-layer protocols, 5-1

required for Terminal port, A-11

required for Telnet session, A-13

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Index

loopback

navigating the screens, 2-5

network

bilateral, A-7

DTE–initiated, A-7

network–initiated, A-5

interface options, A-5

interface status, 6-10

loopbacks, 7-3

main menu

performance statistics, 6-11

tests, 7-3

NMS

configuration options, A-1

tree structure, 2-2

IP validation, A-15

SNMP access, 4-6

SNMP connectivity, 5-1

SNMP security options, A-15

NS, no signal LED, 6-4

null modem cable, E-5

management, of SNMP DSU, 1-1

Management Protocol Statistics, 6-13

messages

alarm and device, 8-1

health and status, 6-6

self-test results, 6-8

test status, 6-9

MIB

objects for MIBs, C-1

OK, LED, 6-3

descriptions, C-1

Enterprise MIB objects supported, C-17

Ethernet–Like MIB objects supported, C-17

general support, 1-4

OOF, out of frame LED, 6-4

OOS, out of service LED, 6-4

operating mode, A-2

options

MIB II objects not supported, C-2

MIB II objects supported, C-1

RS–232–Like MIB object groups supported, C-13

MIB II

configuration areas, 3-4

configuration tables, A-1

configuration worksheets, B-1

Extension to Interface Table, C-6

Generic Receive Address Table, C-9

ICMP Group, C-12

Interface Stack Group, C-7

Interface Test Table, C-8

Interfaces Group, C-3

IP Group, C-10

package checklist. See Startup Instructions

performance, network statistics, 6-11

port

Transmission Group, C-12

UDP Group, C-12

Monitor DTR, A-11

7612-A2-GB20-10

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Index

startup, ATI, 2-1

startup instructions. See Startup Instructions

statistics

rear panel, connections, 1-4

Refresh command, 6-6

Management Protocol, 6-13

Network Performance, 6-11

status

reset device, 7-8

RFC 1213, object groups supported, C-1

RFC 1573, object groups supported, C-1

RFC 1643, object groups supported, C-17

RFC 1659, object groups supported, C-13

RIP option, 5-1

DSU, 6-6

menu, 2-2

network interface, 6-10

test messages, 6-9

subnet, IP addresses, 5-1

system

RJ48S network interface cable, E-6

RLSD Control, A-8

router, management data, 5-3

RS–232–Like MIB

device name fields, 3-1

LEDs, 6-3

Asynchronous Port Table Objects, C-14

General Port Table Objects, C-13

Input Signal Table Objects, C-16

Number of RS–232–Like Ports, C-13

objects supported, C-13

technical specifications, F-1

Telnet session

Output Signal Table Objects, C-17

Synchronous Port Table Objects, C-15

RTS

access, 4-1

access level, A-13

Disconnect Time, A-13

options, A-12

action, A-8

request to send LED, 6-5

timeout, A-13

RXD, received data LED, 6-5

to initiate ATI, 2-1

Terminal port

access level, A-11

character length, A-10

data rate, A-10

direct connection, 2-1

safety instructions. See Startup Instructions

saving option changes, 3-6

screens, for user interface, 2-1

security, 4-1

options, A-10

self-test results, 6-8

parity, A-11

session, Telnet access, 4-1

SNMP

reset, 7-8

stop bits, A-11

terminal port, access, 4-1

test

Community Name, A-14

number of managers, A-15

number of trap managers, A-17

security, A-15

trap types generated, A-18

traps, 8-1, A-17, D-1

SNMP management

Test Timeout, A-4

timeout

Telnet session inactivity, A-13

Terminal port inactivity, A-12

November 1997

7612-A2-GB20-10

IN-4

Download from Www.Somanuals.com. All Manuals Search And Download.

Index

Trap Manager

destination, A-17

V.35 connector, E-3

IP address, A-17

V.54 sequences, 7-4

number, A-17

VT100 compatible terminal. See ATI

traps, SNMP, 8-1, D-1

troubleshooting, 8-3

TXD, transmitted data LED, 6-5

worksheets, option configuration, B-1

user interface

access, 2-1

async terminal, 2-1

7612-A2-GB20-10

November 1997

IN-5

Download from Www.Somanuals.com. All Manuals Search And Download.

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