HP Hewlett Packard Switch HP J3178A User Manual

Installation and

Reference Guide

HP J3178A

HP AdvanceStack Switch 208/224

Management Module

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HP AdvanceStack Switch 208/224

Management Module

Installation and Reference Guide

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

Disclaimer

The information contained in this document is subject to

change without notice.

This document contains information which is protected by

prior permission is prohibited, except as allowed under the

HEWLETT-PACKARD COMPANY MAKES NO WARRANTY

OF ANY KIND WITH REGARD TO

THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO,

THE IMPLIED WARRANTIES OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-

Packard shall not be liable for errors contained herein or for

incidental or consequential damages in connection with the

furnishing, performance, or use of this material.

Publicat ion Number

5966-5228

Edition 1

March 1997

Hewlett-Packard assumes no responsibility for the use or

reliability of its software on equipment that is not furnished

by Hewlett-Packard.

Applicable Product

HP J3178A Switch 208/224 Management Module

Warrant y

A copy of the specific warranty terms applicable to your

Hewlett-Packard products and replacement parts can be

obtained from your HP Sales and Service Office or

authorized dealer.

Hewlett-Packard Company

8000 Foothills Boulevard, m/s 5551

Roseville, California 95747-5551

http://www.hp.com/go/network_city

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HP Customer Support Services

How t o get t he lat est soft ware/agent firmwar e

You can download from the World Wide Web, HP FTP Library Service, CompuServe,

and HP BBS a compressed file (j3178xx.exe) containing the latest version of the HP

Switch 208/224 Management Module software and proprietary MIB. After you down-

load the file, ext ract the file by typing filename and pressing [Enter].

For example, j317801 [Enter].

World Wide Web

http://www.hp.com/go/network_city

Select the “Support” section.

From this web site, you can also download information on the HP networking prod-

ucts. If you have a growing network, download the Designing HP AdvanceStack

Workgroup Networks Guide or call 1-800-752-0900 in the U.S. to receive a copy through

the mail.

HP FTP Library Service

1. FTP to Internet IP Address — ftp ftp.hp.com.

2. Log in as anonymous and press [Return] at the password prompt.

3. Enter bin to set the transfer type.

4. Enter cd /pub/networking/software.

5. Enter get filename to transfer the file to your computer, then quit.

CompuSer ve

1. Login to CompuServe.

2. Go to the “hp” service.

3. Select “HP Systems, Disks, Tapes, etc.”

4. Select “Networking Products” library.

5. Download filename and then quit.

HP BBS

Set your modem to no parity, eight bits, 1 stop bit, set speed up to 14400 bps, and with

your telecommunication program (e.g., Windows Terminal) dial (208) 344-1691 in the

U.S. to get the latest software for your HP networking product. For other countries,

see http://www.hp.com/cposupport/eschome.html.

✂

(over for more services)

Obtain the latest console code (j3178xx.exe) from:

HP FTP Library: ftp ftp-boi.external.hp.com

World Wide Web: http://www.hp.com/go/network_city

HP BBS:

(over)

(208) 344-1691

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HP FIRST Fax Ret rieval Service

HP FIRST is an automated fax retrieval service that is available 24 hours a day, seven

days a week. HP FIRST provides information on the following topics:

■

Product information

Troubleshooting instructions

Technical reviews and articles

Configuration information

To access HP FIRST, dial one of the following phone numbers:

Location

Phone Number

U.S. and Canada Only

Dial1(800)333-1917withyour fax machine or touch-tone phone

and press 1.

Outside the U.S. and Canada

Dial 1 (208) 344-4809 from your fax machine and press 9.

To receive a list of currently available documents, enter document number 19941. The information

you requested will be sent to you by return fax. For other countries, see http://www.hp.com/

cposupport/eschome.html.

Addit ional HP Support Services

In addition to the above services, you can purchase various HP telephone support

services which provide you expert HP technical assistance:

■

Network Phone-In Support provides you support at an hourly rate. In the U.S.,

call 1-800-790-5544. In other countries, please contact your local HP Response

Center to see if this service is available in your country.

HP SupportPack Comprehensive Network Support provides complete prob-

lem resolution for medium to large interconnected local and wide area

networks. Contact your HP Authorized Reseller or the nearest HP Sales and

Support Office for more information.

HP offers other hardware support services. Please contact your reseller for more

information.

✂

CompuServe:

Go hpsys

Lib 7.

Download j3178xx.exe

Network Phone-In

Support (hourly):

1-800-790-5544

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Contents

1 Installing t he Management Module

Included Part s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Inst allation Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Removing t he Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 Management Module Descript ion

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Module Feat ures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

3 The Switch Console

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Connect ing a Console t o the Swit ch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Modem Cable Pin-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

St art ing and Ending a Console Session . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Main Menu Feat ures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Screen St ruct ur e and Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Using Password Secur it y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

Reboot ing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

Advanced Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

4 Configuring the Switch From t he Console

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

Configurable Feat ures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

IPX Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Internet (IP) Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Using Bootp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

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SNMP Communities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Trap Receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Serial Link Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-15

Console Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16

Spanning Tree Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17

Network Monitoring Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Saving Configurat ions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-21

5 Monitoring Swit ch Operation From t he Console

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

St at us and Counters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

Switch Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Port Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Port Counters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Port Counters - Show Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Port Address Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Spanning Tree (STP) Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12

6 Using SNMP To Monitor and Manage the Switch

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

SNMP Management Feat ur es . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

SNMP Configuration Pr ocess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3

Advanced Management : RMON and EASE Support . . . . . . . . . . . . . . 6-4

RMON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

EASE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4

7 Troubleshoot ing

Checking t he Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Problem/Solution Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

IP Configur ation Er rors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Diagnost ic Test s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

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Testing the Switch and Management Module . . . . . . . . . . . . . . . . . . . . 7-4

Testing the Switch’s Ports and the Links . . . . . . . . . . . . . . . . . . . . . . . . 7-5

Reset t ing the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7

Clearing Passwords on t he Swit ch Console . . . . . . . . . . . . . . . . . . . . . 7-8

HP Cust omer Suppor t Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9

A Specifications

Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

B Modem Configuration

C File Transfers

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

Downloading an Operat ing Syst em . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Using TFTP To Download the OS File . . . . . . . . . . . . . . . . . . . . . . . . . C-2

Using the SNMP-Based HP Download Manager . . . . . . . . . . . . . . . . . C-4

Using the Switch-to-Switch Download . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Using the Zmodem to Download the OS File . . . . . . . . . . . . . . . . . . . C-5

Tr oubleshooting TFTP Downloads . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Tr ansferring Swit ch Configur ations . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

D Spanning Tree Operation

Spanning Tree Pr ot ocol ( STP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1

vii

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viii

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Installing the Management Module

The HP J3178AAdvanceStack Switch 208/224 Management Module is installed

into the front of the HP AdvanceStack Switch 208T or 224T.

In this manual, this module will be called the Switch Management Module.

Switch Management Module

Active

Base MAC Address

Figure 1-1. The Switch 208/224 Management Module

When installed, the Switch Management Module adds these features to your

switch:

■

Access to the switch console from which you can configure, monitor, and

troubleshoot the switch

■

Access to the switch from SNMP network management programs, such

as HP AdvanceStack Assistant, for controlling the switch using an

advanced, graphics-based interface

■

Configurable full-duplex port operation

Configurable support for the Spanning Tree Protocol for switched

networks

■

Configurable MAC Address Table aging

This chapter shows you how to install your Switch Management Module.

1-1

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Installing the Management Module

Included Parts

Verify that these parts were included with the product:

•

Switch 208/224 Management Module

HP AdvanceStack Switch 208/224 Management Module

Installation and Reference Guide (5966-5228), this manual

•

Console cable (5182-4794)

HP AdvanceStack Assistant for Windows CD kit

HP AdvanceStack Products CD kit

Installation Steps

Ca u ti o n

Ant i-Static Precaut ions:

Static electricity can severely damage the sensitive electronic components on

the module. When installing the module in your switch, follow these proce-

dures to avoid damage from static electricity:

■

Handle the module by its edges and avoid touching the components and

the circuitry on the board.

■

Equalize any static charge difference between your body and the switch

by wearing a wrist static-protector strap and attaching it to the switch's

metal body, or by frequently touching the switch's metal body while you

are installing the module.

1. Before installing the Switch Management Module, unplug your switch

from the power source. This protects the module and switch from poten-

tial electrical damage.

2. Unscrew the two captured screws holding the cover plate to the switch's

Management Slot and remove the cover, as shown in figure 1-2. Note that

the screws will release outward when unscrewed far enough. Do not

unscrew them completely from the cover plate.

1-2

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Installing the Management Module

Installation Steps

cover plate

Loosen these

screws

Figure 1-2. Remove the cover plate

3. Insert the Management Module into the switch. Line up the sides of the

module with the rails on the sides of the switch’s slot, then push the

module into the slot until it is firmly seated in the connector in the back

of the slot.

Switch Management Module

Figure 1-3. Insert the Switch Management Module

4. Tighten the two screws that hold the module in place. Be careful not to

overtighten the screws.

1-3

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Installing the Management Module

Removing the Module

5. Turn on the power to the switch by plugging in the power cord. During

power-on, the following occurs:

At Power On

The switch begins its power-on self test followed by the module’s self

test. Ports are temporarily disabled until the Switch Management

Module configures the ports.

During Self Test

All Switch and Module LEDs are on for approximately 5 seconds, then

just the switch Power and Fault LEDs and the Management Module

Self Test and Fault LEDs are on for the remainder of the self test. The

switch and module self tests require approximately 15 seconds total.

After Self Test

The switch Fault LED and the module LEDs (Self TestandFault) turnoff.

If the module Fault LED stays on or flashes, refer to chapter 7, “Trouble-

shooting” in this guide.

You have now completed installation and verification of the module.

To configure IP/IPXcommunication for the Switch Management Module, see

chapter 4, “Configuring the Switch From the Console”.

Removing the Module

The module is removed from the switch by reversing the installation steps

described earlier in this document. When handling the module, be sure to

follow the anti-static precautions described on page 1-2.

To remove the module, follow these steps:

1. Remove power from the switch by unplugging the power cord.

2. Unscrew the two captured screws holding the module in the switch.

3. Pull the module out of the slot.

4. Replace the Management Slot cover plate.

Ca u ti o n

Replace the cover plate over the slot using the two screws that hold it in place.

Be careful not to overtighten the screws. When using the switch, the cover

plate must always be installed. This is required for safety and to ensure proper

switch cooling.

1-4

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Management Module Description

Overview

The HP AdvanceStack Switch 208/224 Management Module is installed in the

Management Slot in the front of either the HP Switch 208T or HP Switch 224T.

The Switch Management Module has the physicalelements shown in the figure

below.

■

Reset But ton - used to reboot the Management Module and the

switch in which it is installed. This clears any temporary error condi-

tions that may have occurred, executes the module and switch self

tests, and returns all network activity counters to zero. The counters

are displayed in the switch console interface and through network

management applications.

■

Clear But ton - used for these purposes:

•

When pressed by itself for at least one second, deletes any switch

console access passwords that you may have configured. Use this

feature if you have misplaced the password and need console

access.

This button is provided for your convenience, but its presence

means that if you are concerned with the security of the switch

configuration and operation, you should make sure the switch

with the management module is installed in a secure location,

such as a locked wiring closet.

2-1

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Management Module Description

Overview

•

When pressed with the Reset button in a specific pattern, clears

any configuration changes you may have made through the

switch console and SNMP management, and restores the factory

default configuration to the switch and the module. See “Restor-

ing the Factory Default Configuration” in chapter 7, “Trouble-

shooting” for the specific method to restore the factory default

configuration.

■

Self Test LED - When lit, indicates that the Management Module or

the switch in which the module is installed is undergoing its self test,

which occurs every time the switch is plugged into a power source,

or as a result of pressing the Reset button on the Management Module,

or from rebooting or resetting the switch from the switch console or

from network management.

Fault LED - When lit with the Self Test LED, indicates that the

Management Module is executing its self test. The self test normally

takes approximately 10 seconds. If the Self Test and Fault LEDs stay

on for longer than this, or if the Fault LED is flashing at any time, an

error has occurred on the module. See chapter 7, “Troubleshooting”

for more information on the LED and error recovery procedures.

Console RS-232 Por t - This port is used to connect a console to the

switch, either directly using the serial cable supplied with the

Management Module, or through a modem connection. These connec-

tions are described in chapter 3, “The Switch Console”. The console

can be either a PC running a VT-100 terminal emulator, or a VT-100

terminal itself.

MAC Addr ess - This is the unique hardware identity of the manage-

ment module. It is also used to identify the switch into which the

module is installed, and can be used in network connectivity tests

between the switch and other network devices. In an IPX network,

this address is also used as the Node Address part of the IPX network

address.

2-2

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Management Module Description

Module Features

When you install the Switch 208/224 Management Module in your Switch 208T

or 224T, you get these enhanced switch capabilities:

■

Full-duplex port operat ion. By default, the 10 Mbit/s and

100 Mbit/s ports on the Switch 208/224 operate in half-duplex mode.

With the Switch Management Module installed, these ports can be

configured to operate in full-duplex mode.

■

Address Aging. The Switch 208/224 automatically learns the MAC

address of the devices connected to its ports and stores those address-

es in an 8000-entry address table. When a device is moved, its new

location is automatically learned and kept in the table so proper

communication is maintained with the device. With the Management

Module installed, the additional benefit is that inactive addresses are

aged out of the table -- the table is kept up to date with the addresses

of active nodes only.

■

Spanning Tree Support . The Switch 208/224 uses the IEEE 802.1d

Spanning Tree Protocol (STP) to ensure that only one path at a time

is active between any two nodes in the network, thus preventing loops

that cause broadcast storms from occurring in the network topology.

By default, STP is disabled on the switch. You can use the switch console

to enable STP operation; see chapter 4, “Configuring the Switch From the

Console” for those configuration procedures. For more information on

how STP works, see appendix D, “Spanning Tree Operation”.

■

Swit ch Console. The Management Module has an RS-232 port to

which you can connect a console that can be used to configure,

monitor, and troubleshoot the switch and its ports. The console

interface can be used “out-of-band” from a PC or terminal directly

connected to the port or remotely through a modem connection, or

“in-band” through a Telnet session. For more information on the

switch console, see the section “Switch Console Features” in chapter

3, “The Switch Console”.

■

Net wor k Management . The Management Module has firmware

agents on board that provide SNMP Network Management control of

the switch, support for RMON (four groups) and HP Embedded

Advanced Sampling Environment (EASE) agents to diagnose net-

work problems to help optimize network performance. For more

information the network management features provided by the Man-

agement Module and how to configure those features, see chapter 6,

“Using SNMP to Monitor and Manage the Switch”.

2-3

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The Switch Console

Overview

About t he Console Inter face. The console interface enables you to recon-

figure the switch and to monitor the switch status and performance. It consists

of a series of management screens accessed through a menu-driven screen

structure that begins at the Main Menu.

The switch console interface enables you to use a PC or a terminal to do the

following:

■

Modify the switch’s configuration, or provide configuration for Telnet or

network management access from an SNMP-based management program

such as Hewlett-Packard’s AdvanceStack Assistant (ASA)

■

Monitor the switch and port status and network activity counters

Control console security by configuring passwords

Use the switch’s event log and some advanced commands to help in

troubleshooting

■

Download new software

No te

The Switch 208/224 and its Management Module are shipped with a factory

default configuration that enables operation as a multiport learning bridge

when installed in a network. All ports are enabled, Spanning Tree Protocol

support is disabled, and SNMP network management is enabled over IPX and

IP (by way of Bootp). For this operation, connecting a console device is

unnecessary. However, for some of the other uses listed above, you will need

to use the switch console.

This chapter describes the following features:

■

Connecting a console to the switch (page 3 -2)

Starting and ending a console session (page 3-6)

The Main Menu Features (page 3-8)

Screen structure and navigation (page 3-9)

Using password security (page 3-11)

Rebooting the switch (page 3-15)

3-1

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The Switch Console

Connecting a Console to the Switch

The Switch 208/224 Management Module offers two methods of access to the

console interface:

■

Out-of-band console access:

•

Directly connected to the Console RS-232 port, using a serial cable

and a PC running a VT-100 terminal emulator or an actual VT-100

terminal

•

Remotely connected to the Console RS-232 port, using modems and

a PC running a terminal emulator or an actual terminal

■

In-Band access using Telnet from a PC or UNIX station on the network,

and a VT-100 terminal emulator. This method requires that you first

configure an IP address and subnet mask by using either out-of-band

console access or Bootp. The Management Module allows one outbound

and one inbound Telnet session to be running simultaneously. It can also

simultaneously support one console session through the Console RS-232

port and one Telnet console session.

You can put security restrictions on console access by setting Manager-level

and Operator-level passwords. See “Using Password Security” later in this

chapter.

Default Serial Communication Settings

The default communication settings on the Switch Management Module are:

•

9600 baud

8 data bits

1 stop bit

XON/XOFF

For Windows Terminal program, also disable (uncheck) the “Use

Function, Arrow, and Ctrl Keys for Windows” option.

Configure your PC or terminal to operate with these settings. If you want to

operate the terminal using a different configuration, make sure you change

with settings on both the terminal and on the switch. Change the switch

settings first, then change the terminal settings, and reestablish the console

session.

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The Switch Console

Connecting a Console to the Switch

Direct Console Connection, Using A Serial Cable and a PC

Terminal Emulator or Terminal

You can use either a PC emulating a VT-100 terminal (such as the terminal

application included with Microsoft Windows 3.1) or a VT-100 terminal.

To directly connect a PC or terminal to a Management Module, follow these

steps:

1. Connect the PC or terminal to the switch’s Console RS-232 port, on the

Management Module, using an RS-232-C console cable (included with the

Management Module). (If your PC or terminal has a 25-pin connector, first

attach a 9-pin to 25-pin “straight-through” adapter at one end of the

console cable.)

Console RS-232 Port

Figure 3-1. Connecting a PC or Terminal to the Console RS-232 Port

2. Turn on the terminal or PC’s power (and, if using a PC, start the PC

terminal emulation program).

3. When you see this message:

Waiting for speed sense. Press enter to continue.

Press [Enter]. You will then see the switch console Main Menu. See “Starting

and Ending a Console Session” on page 3-6.

4. If you want to continue with console management of the switch at this

time, refer to the rest of this chapter for general console procedures, to

chapter 4, “Configuring the Switch From the Console”, and to chapter 5,

“Monitoring Switch Operation From the Console”.

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The Switch Console

Connecting a Console to the Switch

Remote Console Connection Using a Modem and a PC

Terminal Emulator or Terminal

No te

For remote console management, use a pair of full-duplex, asynchronous

(character-mode) modems as shown in figure 3-2.

1. Before installing the modems, make sure they are both correctly initial-

ized. Refer to appendix B, “Modem Configuration” for the correct initial-

ization strings.

2. At the site where the Switch 208/224 is installed:

a. Connect the modem to the Switch Management Module’s console port

using a standard “straight-through” RS-232-C modem cable. (For

modem cable pin-outs, refer to “Modem Cable Pin-Out” on next page.)

b. If necessary, configure the PC or terminal to operate with the current

serial link configuration of the Switch Management Module.

3. At the site where the console is to be located, connect the PC emulating

a terminal, or a terminal to the modem using a standard RS-232-C modem

cable. Make sure the terminal and modems are functioning properly, then

establish the link between the terminal’s modem and the switch’s modem

according to the modem instructions.

“straight-through”

modem cable

RJ-11 telephone

cable

Switch with

Management Module

External modem

PC running

a VT-100 terminal program

or a VT-100 terminal

“straight-through”

modem cable

RJ-11 telephone

cable

External modem

(You can also use an internal modem.)

Figure 3-2. Example of Remote Access through a Modem Connection

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The Switch Console

Connecting a Console to the Switch

4. When you see this message:

Waiting for speed sense. Press enter to continue.

Press [Enter]. You will then see the switch console Main Menu. See “Starting

and Ending a Console Session” on page 3-6.

5. If you want to continue with console management of the switch at this

time, refer to the rest of this chapter for general console procedures, to

chapter 4, “Configuring the Switch From the Console”, and to chapter 5,

“Monitoring Switch Operation From the Console”.

Modem Cable Pin-Out

Modem end

25-pin male

Switch end

9-pin male

Signal

RTS

CTS

DSR

GND

CD OR DCD

DTR

DRS–typically on V.24 (European) modems

(not connected)

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The Switch Console

Starting and Ending a Console Session

No te

This section assumes that you have already configured and connected a

terminal device to your switch (as described earlier in this chapter) or that

you have already enabled Telnet access to the switch. (To enable Telnet

access, refer to “Console Configuration” on page 4-16.)

How To Star t a Console Session:

1. Start your PC terminal emulator, terminal, or Telnet session on a remote

terminal device.

2. Do one of the following:

•

If you are using Telnet, go to the next step.

If you are using a PC terminal emulator or a terminal, you should then

see the following prompt:

Waiting for speed sense. Press <Enter> to continue.

Note: If the console displays a series of random and/or unread-

able characters instead of the above prompt, the Baud Rate

setting for the terminal may be different from that of the console

interface. The switch’s autosensing feature remedies this prob-

lem when you press any key. You may have to press the key a

few times.

Press [Enter] and go to the next step.

3. A message indicating the baud rate at which the serial interface (Console

RS-232 port) is operating is briefly displayed, followed by the copyright

screen. Do one of the following:

•

If a password has been set, the Password prompt appears. Type the

password and press [Enter] to display the Main Menu (figure 3-3).

•

If no password has been set, you will see this prompt:

Press any key to continue.

Press [Enter] to display the Main Menu (figure 3-3).

If there is any system-down information to report, the switch displays it

in this step and in the Event Log.

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The Switch Console

Starting and Ending a Console Session

Figure 3-3. The Main Menu

For a description of Main Menu features, refer to “Main Menu Features” on

page 3-8.

How To End a Console Session:.

1. If you have not made configuration changes in the current session, return

to the Main Menu, highlight LOGOUT, and press [Enter].

2. Configuration changes requiring a reboot of the switch are indicated by

an asterisk (*) next to the configured item in the Configuration menu. (See

“Rebooting To Activate Configuration Changes” on page 3-16.) If you have

made configuration changes that require a reboot of the switch in order

to take effect:

a. Return to the Main Menu.

b. Use the arrow keys ( [<], [>] , [v], and [^] ) to highlight Reboot Switch

in the Main Menu and press [Enter] to reboot.

c. When the reboot completes, the switch automatically reestablishes

the console connection, and you can restart your console session, as

described on the previous page. Or, if you have finished using the

console, you can close the terminal emulation program before restart-

ing the console session.

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The Switch Console

Main Menu Features

The Main Menu (figure 3-3 on page 3-7) gives you access to these console

interface features:

• Status and Counters: Displays information on the switch,

individual ports, the address tables, and Spanning Tree Protocol

settings. (Refer to chapter 5, “Monitoring Switch Operation From the

Console”.)

• Event Log: Enables you to read progress and error messages that

are useful for checking and troubleshooting switch operation. A

listing of Event Log messages is included on the CD shipped with your

Switch Management Module. (Refer to “Event Log” on page 5-12.)

• Configuration: Enables you to display the current configuration

settings and to reconfigure individual parameters. (Refer to chapter

4, “Configuring the Switch From the Console”.)

• LOGOUT: Disconnects Telnet or modem access to the switch. (Refer

to “How To End a Console Session” on page 3-7.)

• Advanced Commands: Provides access to a set of system manage-

ment, monitoring, and troubleshooting commands that generally

require greater knowledge of networking. These commands are listed

at the end of this chapter under “Advanced Commands”, and they are

described from the command prompt by entering Help .

• Set Passwords: Enables you to set Operator and Manager pass-

words to help restrict who has access to the console interface. (Refer

to “Using Password Security” on page 3-11.)

• Download OS: Enables you to download new software to the

M a n a g e m e n t M o d u l e . ( R e f e r t o a p p e n d i x C , “ F i l e T r a n s f e r s ” . )

• Reboot Switch: Performs a software reboot, which is required (in

some cases) to activate configuration changes that have been made.

(Refer to “Rebooting To Activate Configuration Changes” on page

3-16.)

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The Switch Console

Screen Structure and Navigation

Console screens include these three elements:

■

Parameter fields and/or read-only information such as statistics

Navigation and configuration actions, such as Save, Edit, and Cancel

Help line to describe navigation options, individual parameters, and read-

only data

For example, in the System configuration screen:

system name

parameter fields

actions line

Help describing each of the

items in the parameter menu

Help line

describing the

selected action

or selected

parameter field

(in this case,the

Cancel option)

navigation instructions

Figure 3-4. Elements of Screen Structure

“Forms” Design. The configuration screens, in particular, operate similarly

to a number of PC applications that use forms for data entry. When you first

enter these screens, you see the current configuration for the item you have

selected. To change the configuration, the basic operation is to:

1. press [E] to select the Edit action

2. navigate through the screen making ALL the necessary configuration

changes, then

3. press [Enter] to return to the action line. From there you can select to save

the configuration changes or to cancel the changes. Cancel returns the

configuration to the values you saw when you first entered the screen.

See the next page for specific instructions on using the console screens.

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The Switch Console

Screen Structure and Navigation

Table 3-1. How To Navigate in the Console

Task: Actions:

Execute an action from an Use either of the following methods:

“Actions-[>] list:

■

Use the arrow keys ( [<] ,or [>] ) to highlight the action you

want to execute, then press [Enter].

■

Press the key corresponding to the capital letter in the

action name. For example, in a configuration menu, press

[E] to select Edit and begin editing parameter values.

Reconfigure (edit) a

parameter setting or a

field:

1. Select a configuration item, such as System. (See figure 3-

4.)

2. Press [E] (for Edit on the Actions line).

3. Use [Tab] or the arrow keys to highlight the item or field.

4. Do one of the following:

•

If the parameter has preconfigured values, use the Space

bar to select a new option (the help line instructs you to

“Select” a value)

•

If there are no preconfigured values, type in a value (the

help line instructs you to “Enter” a value)

5. Ifyou want to change another parameter value, return to step

6. Ifyou are finished editing parameters in the displayed screen,

press [Enter] and do one of the following:

•

To save any configuration changes you have made (or if

you have made no changes), press [S] (for the Saveac-

tion).

•

To exit from the screen without saving any changes that

you have made, press [C] (for Cancel).

Note: Some parameter changes are activated when you

execute Save, and it is therefore not necessary to reboot the

switchaftermakingthese changes.But ifanasteriskappears

next to any menu item you reconfigure, it is necessary to

reboot the switch to implement the change. In this case,

rebooting should be done after you have made all desired

changes and then returned to the Main Menu.

7. When you are finishededitingparameters, return to the Main

Menu.

8. Ifnecessary,reboot the switchbyhighlighting Reboot Switch

and pressing [Enter]. (Refer to the Note, above.)

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The Switch Console

Using Password Security

There are two levels of console access: Manager and Operator. For security,

you can set a password on each of these levels.

Level

Actions Permitted

Manager: Access to all console interface areas.

This is the default level. That is, ifa Manager password has not been set prior

to starting the current console session, then anyone using the console can

access any area of the console interface.

Operator:

Access to the Status and Counters, Event Log, and minimal Configuration.

Use of the LOGOUT command.

On the Operator level, the Advanced Commands, Set Passwords, Download

OS, and Reboot options are not available in the Main Menu.

To use password security:

1. Set a Manager password (and an Operator password, if applicable for your

situation).

2. Activate the password(s) by exiting from the current console session.

If you do steps 1 and 2, above, then the next time a console session is started,

the console interface will prompt you for a password. Assuming that both a

Manager password and an Operator password have been set, the level of

access to the console interface will be determined by which password is

entered in response to the prompt.

If you set a Manager password, you may also want to configure the

ConnectionInactivity Timeparameter in the Serial Link configuration

screen (page 4-15). This causes the console session to end after the specified

period of inactivity, thus giving you added security against unauthorized

console access. (Once a Manager password is set and the console session is

ended, access to the full console interface for any subsequent sessions

requires the Manager password to be entered.)

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The Switch Console

Using Password Security

No te

If there is only a Manager password set (with no Operator password), and the

Manager password is not entered correctly when the console session begins,

the switch console operates on the Operator level.

If there is both a Manager password and an Operator password, but neither is

entered correctly, access to the console will be denied.

If a Manager password is not set, anyone having access to the console

interface can operate the console with full manager privileges, regardless of

whether an Operator password is set. It is recommended that if you want

to restrict access to the console, you should always set at least a Manager

password. Then, if you also want to restrict access to the minimal Operator

capabilities, also set an Operator password.

Passwords are case-sensitive.

The rest of this section covers how to:

■

Set a Password

Delete a Password

Recover from a Lost Password

To set Manager and Operat or passwords:.

1. From the Main Menu select Set Passwords. This screen appears:

Figure 3-5. The Set Password Screen

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The Switch Console

Using Password Security

2. To set a new password:

a. Select Set Manager Password or Set Operator Password.

You will then be prompted with Enter new password.

b. Type a password of up to 16 characters and press [Enter]. (Remember

that passwords are case-sensitive.)

c. When prompted with Enter new password again, retype the

new password and press [Enter].

d. To set another password, return to step 2a. Otherwise, go to step 3.

3. Select Return to Main Menu to exit from the Set Password screen.

After a password is set, if you use LOGOUT or reboot or reset the switch, you

will be prompted to enter the password to start a new console session.

To Delete Password Prote c t ion:

This procedure deletes both passwords (Manager and Operator).

1. Enter the console at the Manager level.

2. From the Main Menu select Set Passwords. You will then see the screen

shown in figure 3-5.

3. Select Delete Password Protection. You will then see the following

prompt:

Continue Deletion of password protection? No

4. Press the Space bar or press [Y] to select Yes, then press [Enter].

5. Press [Enter] to clear the Password protection message.

6. Select Return to Main Menu to exit from the Set Password screen.

To Recover from a Lost Manager Password:

If you cannot start a console session at the manager level because of a lost

Manager password, you can clear the password by getting physical access to

the switch and pressing and holding the Clear button on the Management

Module for at least one second.

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The Switch Console

Using Password Security

To Recover from a Lost Oper ator Password:

To recover from a lost Operator password, delete all passwords as described

above, then re-enter new passwords. If you have physical access to the switch,

press the Clear button on the Management Module to clear all password

protection, then enter new passwords as described earlier in this chapter. If

you do not have physical access to the switch, you will need the Manager

password:

1. Begin a console session at the Manager level (by entering the Manager

password when the password prompt appears).

2. Select Set Passwords from the Main Menu.

3. Select Delete Password Protection.

4. When you see the prompt to continue deletion, use the Space bar to select

Yes, then press [Enter]. You will then see the following message:

Password protection removed.

This means that both the Manager and Operator passwords have been

removed and the switch no longer has password protection.

5. Press [Enter].

6. Set new passwords as described on page 3-12.

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The Switch Console

Rebooting the Switch

Rebooting the switch terminates the current console session and performs a

reset of the operating system. Some of the reasons for performing a reboot

include:

■

Activating certain configuration changes that require a reboot

Resetting statistical counters to zero

Clearing the switch address table

To Reboot the switch, use the Reboot Switchoption in the Main Menu. (If

a Manager password has been previously set, Reboot Switchappears only

if this password is entered at the beginning of the console session.)

the Reboot Switch option

Figure 3-6. The Reboot Switch Option in the Main Menu

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The Switch Console

Rebooting the Switch

Reboot ing To Activate Configur at ion Changes. Configuration changes

for some parameters become effective as soon as you save them. However,

you must reboot the switch in order to implement any changes to any

parameters in the following areas:

■

IPX Service

Internet (IP) Service

Serial Link

If configuration changes requiring a reboot have been made, the switch

console displays an asterisk next to the configuration menu item in which the

change has been made. For example, if you change and save parameter values

for the switch’s IP configuration, the need for rebooting the switch would be

indicated by an asterisk appearing in the following screen:

asterisk indicates a

configuration change

that requires a reboot

in order to take effect

reminder to reboot the switch to

activate configuration changes.

Figure 3-7. Example of a Configuration Change Requiring a Reboot

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The Switch Console

Advanced Commands

Selecting Advanced Commands from the Main Menu presents a command

prompt from which you can enter the following system management com-

mands:

Listing of Commands Available under Advanced Commands

Get (TFTP)

Help

Ping

Time

ClearLED

Config

Date

Version

WalkMIB

Zget

History

IPXPing

LinkTest

Log

Put (TFTP)

Redo

Delete

Exit

Repeat

SetMIB

Telnet

Zput

GetMIB

Page

To get a definition of these commands and their syntax, enter Help at the

command prompt. When you see — MORE— at the bottom of the screen:

■

To advance the display one line at a time, use [Enter].

■

To advance the display one screen at a time, use the Space bar.

If you want to stop the help listing, press [Q].

How To Use the Advanced Commands:

1. To access the command prompt, use the arrow keys to highlight

Advanced Commandsin the Main Menu and press [Enter].

2. The command prompt appears near the bottom of the screen. The text in

the prompt matches the System Name parameter. For example, in the

factory default configuration (no system name configured), the command

prompt is DEFAULT_CONFIG:

3. Type in the command you want to execute and press [Enter]. For example,

to set the time to 9:55 a.m. you would execute the following command:

DEFAULT_CONFIG: time 9:55[Enter]

How To Exit from t he command prompt :

Type exit and press [Enter] to return to the Main Menu.

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Configuring the Switch From the Console

Overview

This chapter provides an overview of the Switch 208/224 Management Module

configuration features.

Default Configurat ion. In its factory default configuration, the Switch

208T and 224T with a Switch Management Module installed automatically

operates as a multiport learning bridge. All ports are enabled, Spanning Tree

Protocol support is disabled, and SNMP network management is enabled over

IPX and IP (by way of Bootp).If you wish to “fine-tune” your switch for the

specific performance, security, and diagnostic needs in your network, you

may choose to reconfigure certain switch parameters.

No te

In the factory default configuration, the Spanning Tree Protocol (STP) is off.

However, if the topology of your network includes any redundant data paths

between switches or bridges, you should enable support for STP. See “Span-

ning Tree Configuration” (page 4-17).

Configurat ion Feat ures. The Switch Management Module enables you to

configure the following sw i tch features. For information on individual config-

uration parameters, use the online Help provided with each configuration

screen in the console user interface.

■

System (page 4-4)

Ports (page 4-5)

IPX Service (page 4-6)

Internet (IP) Service (page 4 -8)

SNMP Communities (page 4-12)

Trap Receivers (page 4-14)

Serial Link (page 4-15)

Console (page 4-16)

Spanning Tree (page 4-17)

Network Monitoring Port (page 4-19)

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Configuring the Switch From the Console

Overview

To get Help on individual par amet er descr ipt ions. In allscreens except

the Advanced Commands screen there is a Help option in the Actions

menu. Whenever the Actions menu is active, you can display Help for that

screen’s parameters by pressing [H]. (The Actions menu is active whenever

any of the choices in the Actions menu is highlighted.) For example:

default values are

shown in brackets [ ]

highlight on any

item in the

Actions menu

indicates that the

Actions menu is

pressing [H] or highlighting

Help and pressing [Enter]

displays Help for the

parameters listed in the

upper part of the screen

help line

Figure 4-1. Example Showing How To Display Help

To get Help on t he act ions or data fields in each screen: Use the arrow

keys ( [<], [>], [^], or [v]) to select an action or data field. The help line under

the Actions menu describes the currently selected action or data field. (For

guidance in how to navigate in a configuration screen, see the instructions

provided at the bottom of the screen, or refer to “Screen Structure and

Navigation” on page 3-9.)

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Configuring the Switch From the Console

Configurable Features

How To Access t he Swit ch Configuration:

1. Begin at the Main Menu and select Configuration and the Configura-

tion menu appears as shown in figure 4-2.

Figure 4-2. The Configuration Menu

2. Use the arrow keys ( [<], [>], [^], and [v] ) to highlight the configuration

topic you want, then press [Enter].

3. Refer to the appropriate sections in the remainder of this chapter for

information on configuring specific features.

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Configuring the Switch From the Console

Configurable Features

System Configuration

This screen configures basic switch management information, including sys-

tem identification information, address aging, the port LED behavior, and time

zone parameters:

system name

Figure 4-3. The System Configuration Screen (Default Values)

No te

To help simplify administration, it is recommended that you configure

System Name to a character string that is meaningful within your system.

To set the time and date, set the Time Protocol parameters for your time server

(page 4-8) or use the time and date commands available under Advanced

Commands.

10 Mbit /s Port LED Mode. Using this parameter, the LEDs associated with

the 10 Mbit/s network ports on the switch can be configured to operate in one

of two ways:

■

Link/Activity - In this mode, each LED indicates the connection status of

the port for 3 seconds after the network cable is first installed and every

time the switch is powered on. After 3 seconds, the LED is used to

indicated network activity on that port--it flashes briefly with each packet

that is either received or transmitted on the port.

■

Link Only - In this mode, the LED continues to indicate the connection

status and does not convert to an activity indicator.

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Configuring the Switch From the Console

Configurable Features

Port Configuration

This screen configures the operating state (enabled or disabled) and mode for

each port. The available modes for each port type are listed and described in

the online help for the screen. To view this information, select the Help action.

The read-only fields in this screen display the port numbers and port types.

read-only fields

Figure 4-4. Example of the Port Configuration Screen

The screen image in figure 4-4 shows the default Mode value for each of the

port types available on the Switch 208/224. Select the Help action to see the

other modes available for each port type.

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Configuring the Switch From the Console

Configurable Features

IPX Service

The Switch Management Module, by default, has IPX communication enabled.

This allows the switch to be managed from an SNMP network management

station in an IPX network. The Switch Management Module automatically

configures the IPX network address usingits MACaddress as the node address

(displayed in the Node Address field in the IPX Service configuration screen

as shown in figure 4-5), and it learns the IPX network number by listening on

the network.

In the IPX Service configuration screen, you can disable IPX management by

changing the IPX Enabled value to No. You can also configure an IPX gateway

frame encapsulation type so that the switch can be managed from a remote

IPX network as described in the next section.

read-only field

defaultsettingfor

“IPX Enabled”

Figure 4-5. The IPX Service Configuration Screen (Default Values)

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Configuring the Switch From the Console

Configurable Features

( Optional) How To Configure IPX for Management from a Remot e IPX

Net wor k. To enable management from a remote IPX network, you must

configure the gateway encapsulation type.

1. From the Configuration screen, select IPX Service to display the above

screen.

2. Press [E] (for Edit).

3. If the IPX Enabled parameter is not already set to “Yes” (the factory

default), then select this parameter and press the Space bar to select Yes.

4. Select the Gateway Encap field and use the Space bar to select the appro-

priate gateway encapsulation for the gateway device.

5. Press [Enter], then [S] (for Save).

6. Return to the Main Menu and reboot the switch.

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Configuring the Switch From the Console

Configurable Features

Internet (IP) Service

For managing the Switch 208/224 from an SNMP network management station

over an IP network, or for using the switch console through a Telnet session,

use the IP Service screen to configure:

■

IP address, subnet mask, and (optionally) the gateway address for the

switch so that it can be managed in an IP network

■

The time server information (used if you want the switch to get its time

information from another device operating as a Timep server)

You can manually configure an IP address, subnet mask, and a Gateway IP

address by setting the IP Config parameter to Manual. Or, you can use

Bootp to configure IP for the switch from a Bootp server. In this case you must

also configure your Bootp server accordingly. If you plan to use Bootp, refer

to “Bootp Operation” in chapter 6, “Using SNMP to Monitor and Manage the

Switch”. Otherwise, set the IP Config parameter to Manual and then

manually enter the IP address and subnet mask you want for the Switch 208/

224.

The default setting for Time

Protocol Enabled is No.

Setting it to Yes as shown

here,thenpressing[v]or[Tab]

causes the Timep Server

Address and Timep Poll

Interval parameters to

appear. For descriptions of

these parameters, select the

Help action for this screen.

Figure 4-6. Example of the IP Service Configuration Screen (Default Values)

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Configuring the Switch From the Console

Configurable Features

To manually configur e t he switch for IP:

1. From the Configuration screen, select Internet (IP) Service to

display the above screen.

2. Press [E] (for Edit).

3. Select the IP Config field and use the Space bar to select Manual.

4. Select the IP Addressfield and enter the IP address you want to assign

to the switch.

5. Select the Subnet Mask field and enter the subnet mask for the IP

address.

6. If you want to reach off-subnet destinations, select the Gateway field

and enter the IP address of the gateway router.

7. Press [Enter], then [S] (for Save).

8. Return to the Main Menu and reboot the switch.

Using Bootp

In its default configuration, the switch is configured to enable Bootp opera-

tion. However, if an IP address has previously been configured or if the IP

Config parameter has been set to Disabled, then you will need to use this

procedure to reconfigure the parameter to enable Bootp operation.

This procedure assumes that a Bootp database record has already been

entered into an appropriate Bootp server, and that the necessary network

connections are in place. For samples of Bootp server table entries, see “Bootp

Database Entries” later in this chapter.

To configure t he swit ch for Boot p:

1. In the Main Menu, select Configuration.

2. In the Configuration screen select Internet (IP) Service.

3. Press [E] (for Edit mode), then use [v] to move the cursor to the

IP Config parameter field.

4. Use the Space bar to select the Use Bootp option for the IP Config

parameter. (This disables access to the IP Address, Subnet Mask, and

Gateway parameters.)

5. Press [Enter] to exit from edit mode, then press [S] to save the configuration

change.

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Configuring the Switch From the Console

Configurable Features

When you reboot the switch with Bootp enabled, it will do one of the following:

■

Receive a minimal configuration (IP address and subnet mask).

If the reply provides information for downloading a configuration file, the

switch then uses TFTP to download the file from the designated source,

then reboots itself. (This assumes that the switch has connectivity to the

TFTP file server specified in the Bootp database configuration record and

that the Bootp database record is correctly configured.)

Bootp Operation

Bootp is used to download configuration data to the switch from the Bootp

server that is configured on the switch. Either a minimal IP configuration or

a full configuration can be retrieved from the Bootp server.

No te

The switch supports only the DHCP (Dynamic Host Configuration Protocol)

implementations that are backwards compatible with Bootp.

The Bootp Process

Whenever the switch reboots with the IP Config parameter set to Use Bootp

(the default), Bootp requests are broadcast on all local networks. When the

Bootp server receives the request it searches its Bootp database for a record

entry that matches the Switch Management Module MAC address, which is in

the Bootp request. If a match is found, the configuration data in the associated

database record is returned to the switch. For most Unix systems, the Bootp

database is contained in the /etc/bootptab file.

Bootp Database Record Entries

An entry in the Bootp table file /etc/bootptab to update an IP address

and subnet mask to the switch configured in the switch would be similar to

this entry:

switch208224:\

ht=ether:\

ha=080009123456:\

sm=255.255.248.0:\

lg=11.22.33.44:\

hn:\

ip=55.66.77.88:\

vm=rfc1048:

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Configuring the Switch From the Console

Configurable Features

An entry in the Bootp table file /etc/bootptab to tell the switch where to

obtain a configuration file download would be similar to this entry:

switch208224:\

ht=ether:\

ha=080009123456:\

sm=255.255.248.0:\

lg=11.22.33.44:\

hn:\

ip=55.66.77.88:\

T144="switch.cfg":\

vm=rfc1048:

where:

switch208224 is a user-defined symbolic name to help you find the correct section

of the bootptab file. If you have multiple switches that will be using

Bootp to get their IP configuration, you should use a unique

symbolic name for each switch.

is the “hardware type”. For the HP AdvanceStack switch, set this

to ether (for Ethernet). This tag must precede the hatag.

is the “hardware address”. Use the Switch Management Module's

12-digit MAC address. Make sure you use the address displayed

on the front of your Switch Management Module.

is the subnet mask of the subnet in which the switch is installed.

TFTP server address (source of final configuration file).

send nodename (boolean flag, no “=value” needed).

is the IP address to be assigned to the switch.

T144

is the vendor-specific “tag” assigned to HP; the name of the

configuration file to download is in quotes.

is a required entry that specifies the Bootp report format. For the

HP AdvanceStack switch, set this parameter to rfc1048.

Notes for the bootptab file:

■

Blank lines and lines beginning with the pound sign (#) are ignored.

■

Make sure you include a colon (:) and a back slash (\) as a continuation

indication at the end of each line except the last one. The last line should

end with just a colon (:)

■

Spaces are not allowed between the characters on a line.

Names, such as switch208224 must begin with a letter and can only

contain letters, numbers, periods, or hyphens.

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Configuring the Switch From the Console

Configurable Features

SNMP Communities

This screen enables you to add, edit, or delete SNMP communities. Use this

feature if you expect to manage the Switch 208/224 from an SNMP manage-

ment station. You can configure up to five SNMP communities, each with

either an operator-level or a manager-level view, and either restricted or

unrestricted write access. (For more on this topic, refer to chapter 6, “Using

SNMP To Monitor and Manage the Switch”, and to the online Help.)

This screen gives an overview of the SNMP communities that are

currently configured. All fields in this screen are read-only.

Addand Editoptions are usedto modify

the SNMP options. See figure 4-8.

Figure 4-7. The SNMP Communities Screen (Default Values)

Ca u ti o n

Deleting the community named “public” disables many network management

functions (such as auto-discovery, traffic monitoring, and threshold setting).

If security for network management is a concern, it is recommended that you

change the write access for the “public” community to “Restricted”.

How To Configur e the Switch for SNMP Communit ies.

Ensure that the switch has been configured for IP and/or IPX service.

1. From the Configuration screen, select SNMP Communities to display a

screen similar to figure 4-7.

2. Press [A] (for Add) to display the following screen:

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Configuring the Switch From the Console

Configurable Features

If you are adding a

community, the fields in

this screen are blank.

type the value for

this field

If you are editing an

existing community, the

values for the selected

community appear in the

fields.

use the Space bar

to select values for

other fields

Figure 4-8. The SNMP Communities Add or Edit Screen

No te

If you choose to not restrict the use of a community to specific network

management stations, you do not need to list the manager addresses on this

screen. You can use this screen to just configure community names and to set

the MIB View and Write Access for each community.

All community names that you create using this screen can be used to access

the switch into which the Switch Management Module is installed. Any

management station using the correct community name mayaccess the switch

with the corresponding MIB View and Write Access levels.

If you want to restrict access to one or more specific management stations for

a given SNMP community, listing the addresses of those stations on this screen

creates that limitation. For each SNMP Community, you can authorize up to

ten management stations by entering their IP and/or IPX addresses into the

Manager Address field.

3. Enter the appropriate value in each of the above fields (use the [Tab] key

or arrow keys to move from one field to the next).

4. Press [Enter], then [S] (for Save), and the new SNMP Community configu-

ration is automatically activated.

5. Return to the Main Menu to access other functions.

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Configuring the Switch From the Console

Configurable Features

Trap Receivers

This screen enables you to configure up to ten IP and/or IPX management

stations (trap receivers) to receive SNMP trap packets sent from the switch.

Trap packets describe specific event types. (These events are the same as the

log messages displayed in the event log.) The protocol, address, and commu-

nity define which management stations receive the traps. Check the event log

to help determine why the authentication trap was sent. (Refer to chapter 3

for information on the event log.)

Figure 4-9. The Trap Receivers Configuration Screen (Default Values)

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Configuring the Switch From the Console

Configurable Features

Serial Link Configuration

Use the serial link configuration screen to adjust the console RS-232 configu-

ration to customize the connection with the PC, terminal, or modem you are

using for console access. Refer to appendix B, “Modem Configuration” for

information on modem settings. Refer also to “Console Configuration” on the

next page.

Figure 4-10. The Serial Link Configuration Screen (Default Values)

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Configuring the Switch From the Console

Configurable Features

Console Configuration

This screen lets you enable or disable inbound Telnet access and control the

types of events displayed in the event log. Also specifies the terminal type and

the console screen refresh interval used by the statistics screens (that is, the

frequency with which statistics are updated on the statistics screens).

No te

“Inbound” Telnet is Telnet access to the switch console from another device.

“Outbound”Telnet, which is using Telnet through the switch console to access

another device, is always enabled as long as the Switch Management Module

has been configured with a valid IP address. (To configure an IP address for

the switch, refer to “Internet (IP) Service Features” on page 4-8.)

The Switch Management Module supports one inbound and one outbound

Telnet sessions simultaneously.

default inbound

Telnet setting

Figure 4-11. The Console Configuration Screen (Default Values)

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Configuring the Switch From the Console

Configurable Features

Spanning Tree Configuration

Use this screen to activate the IEEE 802.1d Spanning Tree Protocol (STP) on

the switch and to adjust spanning tree parameters, if necessary. In the factory

default, STP is off. If there are any redundant paths (loops) between nodes in

your network, you should set the Spanning Tree Enabled parameter to Yes.

This ensures that all redundant ports (those providing backup parallel con-

nections) are in a blocking state and not used to forward data.

The switch automatically senses port identity and type, and automatically

defines port cost and priority for each type. The interface allows you to adjust

the Cost and Priority for each port, as well as the global STP parameter values

for the switch.

To configure t he STP par amet ers: In most cases, the default STP param-

eter settings are adequate. In cases where it is not, use this procedure to make

configuration changes.

Ca u ti o n

If you enable STP (step 4), it is recommended that you leave the remainder of

the STP parameter settings at their default values until you have had an

opportunity to evaluate STP performance in your network. Because incorrect

STP settings can adversely affect network performance, you should avoid

making changes without having a strong understanding of how STP operates.

To learn the details of STP operation, refer to appendix D, “Spanning Tree

Operation”, and examine the IEEE 802.1d standard.

1. From the Main Menu, select Configuration.

2. In the Configuration screen, select Spanning Tree.

3. Select Edit to highlight the Spanning Tree Enabled parameter.

4. Press the Space bar to select Yes. (This enables STP.)

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Configuring the Switch From the Console

Configurable Features

Figure 4-12. Example of the STP Configuration Screen

5. If the remaining STP parameter settings are adequate for your network,

go to step 8.

6. Use [Tab] or the arrow keys to select the next parameter you want to

change, then type in the new value. (If you need information on STP

parameters, press [Enter] to select the Actions line, then press Hto get

help.)

7. Repeat step 6 for each additional parameter you want to change.

8. When you are finished editing parameters, press [Enter] to return to the

Actions line.

9. Press [S]to save the currentlydisplayed STP parameter settings and return

to the Configuration menu. The Spanning Tree configuration is automat-

ically activated when it is saved.

10. Return to the Main Menu to access other functions.

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Configuring the Switch From the Console

Configurable Features

Network Monitoring Port

You can designate a port for monitoring traffic on any one of the other ports

on the switch. This is accomplished by copying all traffic from the specified

port to the designated monitoring port. The feature is also referred to as

“mirroring”.

How To Configur e the Switch for Monit or ing: This procedure

describes configuring the switch for monitoring when monitoring is disabled.

(If monitoring has already been enabled, the screens will appear differently

than shown in this procedure.)

1. Select Network Monitoring Port from the Configuration screen.

2. In the Actions menu, press [E] (for Edit).

3. If monitoring is currently disabled (the default) then enable it by pressing

the Space bar (or [Y] ) to select Yes.

enable monitoring by

setting this parameter

to “Yes”

Figure 4-13. The Default Network Monitoring Configuration Screen

4. Press [v] to display a screen similar to the following and move the cursor

to the Monitoring Port parameter.

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Configuring the Switch From the Console

Configurable Features

Figure 4-14. Example of Selecting a Monitoring Port

5. Press the Space bar or type the port number to select which port to use

for the monitoring port

6. Press [v] to move to the Monitored Port field and press the Space

bar or type the port number to select the port you want to monitor.

7. Return to the Main Menu to select other functions. You don’t need to

reboot the switch; the Network Monitoring Port configuration is dynam-

ically activated.

No te

The port you select as the Monitoring Port is identified on the port status and

counter screens and the port configuration screens with -MP after the port

number

The port you select as the Monitoring Port cannot participate in Spanning Tree

protocol, so it will not be displayed on the Spanning Tree configuration or

status screens.

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Configuring the Switch From the Console

Saving Configurations

Once you have completed all your switch configuration changes, it is a good

idea to save the configuration in a secure location. The configuration is

contained in a file that can be transferred to a PC or server. See “Transferring

Switch Configurations” in appendix C, “File Transfers” for the procedures to

save your switch configuration.

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Monitoring Switch Operation From the

Console

Overview

The Main Menu in the switch’s console interface gives you access to the

following sources of read-only data for helping you to monitor, analyze, and

troubleshoot switch operation:

Table 5-1. Read-Only Monitoring and Analyzing Features

Main Menu Data Type

Item

Purpose

Status and Switch Information

Lists switch-level operating information.

Counters

Menus

Port Status

Displays the operational status of each port.

Summarizes port activity.

Port Counters

Address (forwarding) Table Lists the MAC addresses ofnodes the switch has

detected on the network, along with the

corresponding switch port.

Port Address Table

Lists the MAC addresses that the switch has

learned from the selected port.

Spanning Tree Information Lists Spanning Tree data for the switch and for

individual ports.

Event Log

Lists event messages generated by the switch.

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Monitoring Switch Operation From the Console

Status and Counters Menu

Select Status and Counters from the Main Menu to display the Status and

Counters menu:

Figure 5-1. The Status and Counters Menu

Each of the above menu items accesses the read-only screens described on

the following pages. Refer to the online help for a description of the entries

displayed in these screens.

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Monitoring Switch Operation From the Console

Status and Counters Menu

Switch Information

Figure 5-2. Example of Switch Information

This screen tells you the following information about the switch and the

Switch Management Module:

■

the version of the OS (operating system) code

the version of the ROM (read-only memory) code

the MAC address of the Switch Management Module

the identity of the expansion module, if one is installed in the Expansion

Slot in the back of the switch:

• None indicates that no module is installed

• Router/Rem Access indicates that a router module (for example,

the HP J3138A Internet Router Module), or a remote access module

(for example, the HP J3230A LanRover/10A by Shiva) is installed.

■

a dynamic indication of how individual switch resources are being used

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Monitoring Switch Operation From the Console

Status and Counters Menu

Port Status

Figure 5-3. Example of Port Status

For each port, this screen provides you the following information:

■ Port-- the port number (note that even if a transceiver module is not

installed in the transceiver slot in the front of the switch--port B, a

port B entry is displayed in the list)

■ ID-- the port ID number to use for SNMP MIB access

■ Type-- the network technology type of the port

■ Media-- the type of network media connected to the port

■ Enabled -- whether the port is enabled (Yes or No)

■ Status-- the operational status of the port (Up-- operating correctly, or

Down-- not operating correctly)

■ Mode-- the port’s operating mode

Use the Help action item on this screen to see a list of possible values for

each of these items, and definitions of those values.

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Monitoring Switch Operation From the Console

Status and Counters Menu

Port Counters

Figure 5-4. Example of Port Counters

This screen enables you to determine the traffic patterns for each port. Port

Counter features include:

■

Dynamic display of counters summarizing the traffic on each port since

the last reboot or reset

Option to reset the counters to zero (for the current console session). This

is useful for troubleshooting. Refer to the Note, below.

An option to display the link status, and further port activity details for a

specific port ( Show details ). When you select the Show details

action, you are prompted to select the switch port. A sample detailed port

counters screen is shown in figure 5-5.

No te

The Reset action on this screen and the Show Details screen resets the

counter display to zero for the current session, but does not affect the

cumulative values in the actual hardware counters. (In compliance with the

SNMP standard, the values in the hardware counters are not reset to zero

unless you reboot or reset the switch.) Thus, using the Reset action resets

the displayed counters to zero for the current session only. Exiting from the

console session and starting a new session restores the counter displays to

the accumulated values in the hardware counters.

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Monitoring Switch Operation From the Console

Status and Counters Menu

Port Counters - Show Details

Figure 5-5. Example of Port Counters - Show Details

This screen shows you additional counters for the selected port. For defini-

tions of these counters, use the Help action.

In addition to the counters, this screen displays the status of the network

connection to this port ( Link Status), and the MAC address of the Switch

Management Module. This MAC address can be used to perform level-2

network connectivity tests (link tests) through this port. See chapter 7,

“Troubleshooting” for more information about link tests.

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Monitoring Switch Operation From the Console

Status and Counters Menu

Address Table

Figure 5-6. Example of the Address Table

This screen lets you easily determine which switch port is being used to access

a specific device on the network. The listing includes:

■

The MAC addresses that the switch has learned from network devices

attached to the switch

■

The port on which each MAC address was learned

You can use the Searchaction at the bottom of the screen to locate a specific

device (MAC address).

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Monitoring Switch Operation From the Console

Status and Counters Menu

Port Address Table

This screen lets you easily determine which devices are attached to the

selected switch port by listing all of the MAC addresses detected on that port.

You can use the Searchaction at the bottom of the screen to determine

whether a specific device (MAC address) is connected to the selected port.

To use t he por t address t able:

1. Select Port Address Tablefrom the Status and Counters menu.

Use the Space bar to select the port for

which you want to display the address table.

Figure 5-7. Example of How To Access the Port Address Table

2. When the Select Portprompt appears, press the Space bar to display

the number of the port you want to examine, then press [Enter]. (See figure

5-7, above.)

Each port is identified by its port number.

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Monitoring Switch Operation From the Console

Status and Counters Menu

In this example, severalMACaddresses

accessed through port 16 appear in the

initial listing. To view any additional

addresses that may be in the listing, use

the Next page action.

Figure 5-8. Example of a Port Address Table for a Specific Port

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Monitoring Switch Operation From the Console

Status and Counters Menu

Spanning Tree (STP) Information

Use this screen to determine current switch-level STP parameter settings and

statistics.

Figure 5-9. Example of Spanning Tree Information

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Monitoring Switch Operation From the Console

Status and Counters Menu

You can use the Show portsaction at the bottom of the screen to display

port-level information and parameter settings for each port in the switch

(including port type, source MAC address, cost, priority, operating state, and

designated bridge).

Figure 5-10. Example of STP Port Information

Ca u ti o n

Because incorrect STP settings can adversely affect network performance,

you should avoid making changes without having a strong understanding of

how STP operates. For more on STP, refer to appendix D, “Spanning Tree

Operation” and read the IEEE 802.1d standards document.

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Monitoring Switch Operation From the Console

Event Log

The Event Log records operating events as single-line entries listed in chrono-

logical order. Each entry is composed of five fields:

Severity

Date

Time

System Module

Event Message

I 08/05/96 10:52:32 ports: port 1 enabled

Severity is one of the following codes:

(information) indicates routine events.

(warning) indicates that a service has behaved unexpectedly.

(critical) indicates that a severe switch error has occurred.

(debug) reserved for HP internal diagnostic information.

Date is the date in mm/dd/yy format that the entry was placed in the log.

Time is the time in hh:mm:ss format that the entry was placed in the log.

System Module is the internal module (such as “ports” for port manager) that

generated the log entry.

Event Message is a brief description of the operating event.

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Monitoring Switch Operation From the Console

Event Log

Ent ering and Navigat ing in t he Event Log Display. To enter the event

log, select Event Log from the Main Menu.

log status line

range of events in the log

range of log events displayed

Figure 5-11. Example of an Event Log Display

When you first display the event log, the first event of the most recent reboot

is positioned at the top of the display. To display other portions of the log—

either preceding or following the currently visible portion—use either the

actions listed at the bottom of the display (Next page, Prev page, or End),

or the arrow keys as described in the following table:

Table 5-2. Event Log Control Keys

Key

[N]

[P]

[v]

[^]

[E]

[H]

Action

Advance the display by one page (next page).

Roll back the display by one page (previous page).

Advance display by one event (down one line).

Roll back display by one event (up one line).

Advance to the end of the log.

Display Help for the event log.

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Monitoring Switch Operation From the Console

Event Log

The event log holds up to 100 lines in chronological order, from the oldest to

the newest. Each line consists of one complete event message. Once the log

has received 100 entries, it discards the current oldest line each time a new

line is received. The event log window contains 20 lines and can be positioned

to any location in the log.

The log status line at the bottom of the display identifies where in the sequence

of event messages the display is currently positioned.

The event log will be erased if any of the following occurs:

■

The switch is reset by using the Reset button on the Switch Management

Module.

■

Power to the switch is interrupted, or the power is cycled.

A new operating system is downloaded to the switch.

(The event log is not erased by using the Reboot Switch command in the

console Main Menu.)

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Using SNMP To Monitor and Manage the

Switch

Overview

You can manage the Switch 208/224 that has a Management Module installed

from a network management station. Included with your Switch 208/224

Management Module is a CD-ROM containing a copy of HP AdvanceSt ack

Assistant , an easy to install and use network management application that

runs on your Windows NT- or Windows 95-based PC. It can be used as an

application under the HP OpenView network management environment, or it

can be run as a stand-alone application running directly under Windows.

HP AdvanceStack Assistant provides complete control of your Switch 208 or

224 through its graphical interface. In addition, it makes use of the HP

Embedded Advanced Sampling Environment (HP EASE) and RMON agent

software that is on the Switch Management Module to provide powerful but

easy to use traffic monitoring and network activity analysis tools.

This chapter provides an overview of SNMP management for the Switch 208/

224 and provides an overview of the configuration process for supporting

SNMP management of the switch. For configuration procedures for specific

features, see chapter 4, “Configuring the Switch From the Console”.

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Using SNMP To Monitor and Manage the Switch

SNMP Management Features

SNMP management features provided by the Switch 208/224 Management

Module include:

■

Security via configuration of SNMP communities

Event reporting via SNMP traps and RMON

Managing the switch with a network management tool such as HP

AdvanceStack Assistant

■

Monitoring data normally associated with the SNMP v2 agent (“Get”

operations). Supported Standard MIBs include:

•

Bridge MIB (RFC 1493)

Ethernet MAU MIB (RFC 1515)

Interfaces Evolution MIB (RFC 1573)

Novell Standard IPX MIB (ipx.mib)

RMON MIB (RFC 1757)—etherstats, events, alarms, and history

SNMP MIB-II (RFC 1213)

Entity MIB (RFC 2037)

HP Proprietary MIBs include:

•

Statistics for message and packet buffers, tcp, telnet, and timep

(netswtst.mib)

•

Port counters, forwarding table, and CPU statistics (stat.mib)

tftp download (downld.mib)

Integrated Communications Facility Authentication Manager and

SNMP communities (icf.mib)

•

HP AdvanceStack Switch 208/224 configuration (config.mib)

HP Embedded Advanced Sampling Environment (ease.mib)

The Switch Management Module SNMP agent also uses certain variables

that are included in a Hewlett-Packard proprietary MIB file you can add

to the SNMP database in your network management tool. You can copy

the MIB file from the HP AdvanceStack Products CD, shipped with the

Switch Management Module, or from following World Wide Web site:

http://www.hp.com/go/network_city

For more information, refer to the perforated card at the front of this

manual.

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Using SNMP To Monitor and Manage the Switch

SNMP Configuration Process

If you are using IP, you must either configure the switch with the appropriate

IP address or, if you are using Bootp to configure the switch, ensure that the

Bootp process provides the IP address. (The IPX address is automatically

configured.)

The general steps to configuring for SNMP access to the preceding features

are:

1. From the Main Menu, select Configuration.

2. Configure an network address for the switch, including any necessary

gateways:

a. Use the IPX address. On IPX networks, the switch automatically

acquires an IPX address based on the network number and the Switch

Management Module MAC address. (Refer to page 4-6 for more

information.)

b. Use Bootp, which is enabled bydefault, to acquire an IP address. Make

sure the Bootp server is configured to support this switch. (Refer to

“Using Bootp” on page 4-9 for more information.)

c. Manually configure an IP address. (Refer to page 4-8 for more infor-

mation.)

3.Configure the appropriate SNMP communities. (The “public” community

exists by default and is used by HP’s network management applications.)

(For more on configuring SNMP communities, refer to page 4-12.)

4. Configure the appropriate trap receivers. (For more on configuring trap

receivers, refer to page 4-14.)

No te

SNMP community and trap receiver configurations are activated when saved.

Rebooting the switch is not necessary unless you have also configured other

parameters that require rebooting in order to be activated.

Any IP or IPX service configuration changes are not activated when saved.

For these changes, the switch must be rebooted for the changes to take effect.

For more on when it is necessary to reboot, refer to “Rebooting the Switch”

in chapter 3, “The Switch Console”.

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Using SNMP To Monitor and Manage the Switch

Advanced Management: RMON and EASE Support

Advanced Management: RMON and

EASE Support

The Management Module supports RMON (Remote Monitoring) and EASE on

all network segments connected to the switch. This allows for troubleshooting

and optimizing of your network.

RMON

The following RMON groups are supported:

■

Ethernet Statistics (except the numbers of packets of different frame

sizes)

■

Alarm

History (of the supported Ethernet statistics)

Event

You can access the Ethernet statistics, Alarm, and Event groups from the

HP AdvanceStack Assistant network management software included with

your Switch Management Module.

EASE

EASE (Embedded Advanced Sampling Environment) is a network monitoring

and troubleshooting tool that analyzes traffic from a network-wide perspec-

tive. EASE notifies you about network problems and identifies the end node

at fault. That information can be used to set up RMON to study the problem

more closely, if desired. Because it is based on statistical sampling instead of

RMON’s all-inclusive collection schema, EASE lessens the load on devices and

network bandwidth. See the Traffic Monitor portion of the HP AdvanceStack

Assistant CD-ROM (supplied with your Management Module) for more infor-

mation on using EASE.

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Troubleshooting

This chapter describes how to troubleshoot your Switch Management Module.

This chapter covers these topics:

■

checking the Switch Management Module LEDs

using the problem/solution table

checking for IP configuration errors

using diagnostic tests

resetting the switch

clearing a password for the switch console

HP Customer Support Services

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Troubleshooting

Checking the Module LEDs

The following table lists Switch Management Module LED behavior showing

error conditions.

Table 7-1. Switch Management Module LED Behavior

Description

LED

Status

Self Test ON

The module is being self tested as a result of being powered on or because of a reset. If it

stays ON for a prolonged period of time (more than 30 seconds), the module has experienced

a hardware failure. See the instructions for the ON condition under the Fault LED below.

Flashing

This should only occur ifthe Fault LED is also flashing, andindicates that the module has failed

its firmware selftest. See the instructions for the Flashing conditionunderthe Fault LEDbelow.

Try resetting the switch and module by pressing the Reset button on the module.

If the fault condition persists, attach a PC to the switch and run the console interface; the log

file should indicate the error condition. See Note below.

Fault

The module is being self tested as a result of being powered on or because of a reset. If it

stays ON for a prolonged period of time (more than 30 seconds), the module has experienced

a hardware failure.

Try resetting the switch and module by pressing the Reset button on the module.

If the failure persists, it may be due to incorrect module installation. Remove power from the

switch and try reinstalling the module. This condition may also be caused by an incorrectly

installed SIMM on the module. While the module is removed, verifythat the SIMM is correctly

installed.

Apply power to the switch again. If the fault condition persists, the module may have to be

replaced.

If none of these procedures resolves the condition, the module may be faulty and would need

to be replaced. Contact your HP-authorized LAN dealer for assistance.

Flashing

Indicates that the module has failed its firmware self test.

Try resetting the switch and module by pressing the Reset button on the module.

If the fault condition persists, attach a PC to the switch and run the console interface; the log

file should indicate the error condition. See Note below.

Note:

If the Self Test and Fault LEDs are flashing (not constantly on), you should be able to use the switch console to read

the switch event log to identify the problem. If necessary to resolve the problem, contact your HP-authorized LAN

dealer, or use the electronic support services from HP to get assistance. See the perforated card at the front of this

manual for more information.

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Troubleshooting

Problem/Solution Table

Use the following table to diagnose the problem with your Management

Module:

Table 7-2. Typical Switch Problems and Their Solutions

Problem

Solution

How do I reset the switch? Either:

•

Push the reset button on the Switch Management

Module.

•

Select Reboot Switchfrom the switch console.

Select the Resetcommand from HP AdvanceStack

Assistant.

•

Power cycle the switch.

Note that onlythe power cycle optioncauses the switchand

Switch Management Module to run their diagnostic self

tests.

None of the Management

Module LEDs are on.

The Module may not be installed correctly. Make sure the

Module is fully inserted and screws are tightened.

I can’t remember the

console password to

While the switch is on, press the Clear button on the

Management Module for at least 1 second. Then release.

configure anddiagnose the Then specify a new password to keep access to the switch

switch.

restricted. (The steps are described in chapter 3 under

“Using Password Security”.)

A user can’t send data to

another user.

There maybe a cabling problemwiththe connectionforone

or both of the users. Follow the procedures under

“Diagnostic Tests” to identify the problem.

I think the Switch

See the information in table 7-1 for what to do under these

conditions.

Management Module isn’t

working anymore because

the Fault LED stays on or

flashes. What do I do?

If the answer to your question is not in this table, read the IP configuration

and diagnostic test information on the next pages.

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Troubleshooting

IP Configuration Errors

If you are using IP communications, make sure your IP configuration param-

eters are set properly. Use the switch console’s IP Configuration function as

described in chapter 4. Incorrect IP configuration on the Switch Management

Module will prevent it from communicating with the network management

station, and may cause other network problems.

In particular, make sure you provide the Switch Management Module with a

unique IP address, and that you use the correct subnet mask for your network.

Diagnostic Tests

The HP AdvanceStack Assistant and switch console provide tests and indica-

tors that can be used to monitor the switch and its network connections.

Testing the Switch and Management Module

If you believe that the switch or its Management Module are not operating

correctly, remove and reinsert the power cord for that switch. This procedure

causes the switch and module to complete their power-on self test.

Normally, when the self test completes, the module’s Self Test LED and all

Fault LEDs on the switch and module will go OFF. If any error conditions exist

in the switch or the module, the LEDs should display the condition. See the

HP AdvanceStack Switch 208/224 Installation and Reference Guide to

interpret the LED display for the switch. For the module, see the table under

“Checking the Module LEDs” at the beginning of this chapter.

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Troubleshooting

Diagnostic Tests

Testing the Switch’s Ports and the Links

To test the switch’s ports and the attached network links, follow these

procedures:

1. Check for link beat det ection on t he por t. When the switch first

detects the link beat signal (also called “link test pulse signal”) coming

from an active device, the port LED comes ON for approximately 3

seconds. This happens whenever the switch is powered on and an active

device that is sending link beat is connected to the port, or the connected

device is powered on, or the switch is powered on and an active network

cable is plugged in to the port.

In its default configuration, the switch indicates the link status for 3

seconds on its 10 Mbit/s port LEDs and then converts them to displaying

network activity on the port. (The 100 Mbit/s port always operate this

way.) You can configure the 10 Mbit/s port LEDs to continuously indicate

the link status and not convert to activity indicators. This configuration

option is on the System configuration screen under the Configuration

menu on the switch console interface. See “System Configuration” in

chapter 4, “Configuring the Switch From the Console”.

2. Run net wor k communicat ion t est s. Use these tests if you have link

beat detected for a port. Choose one of the following ways to run a test

of the network communication between the switch and an addressable

device connected at the remote end of each of the cables you wish to test:

•

Select Link Test from HP AdvanceStack Assistant’s Network Test

function or the switch console’s Advanced Commands option. This

causes the switch to send IEEE 802.2 Test command packets to a

specified network device.

The device must be able to send an IEEE 802.2 Test response packet

upon receipt of a Test command packet. Usually this would be

another network device such as a hub, switch, or router. You specify

the remote device by its 12-digit hexadecimal MAC address.

•

Select Ping Test . This is a network layer test that you can run on TCP/

IP networks. The switch sends ICMP Echo Request packets to a

specified network device. This works with devices that have an IP

address and are able to respond to an ICMP Echo Request packet.

Most end nodes using IP will respond to this packet. You specify the

remote device by its IP address.

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Troubleshooting

Diagnostic Tests

•

Select IPXping Test . This is a network layer test that you can run on

Novell NetWare IPX networks. The switch sends IPX test packets to

a specified network device. This works with devices that have an IPX

address and are able to respond to an IPX test packet. Most end nodes

using IPX will respond to this packet. You specify the remote device

by its IPX address.

If the test passes, the switch's port, the network link, and the remote

device are all working properly. If you are testing the transceiver module

port, this also tests the transceiver that is installed in the switch.

If the test fails, you can test the switch using the “Testing the Switch Only”

procedures on the previous page. You should also verify that the remote

device is powered on and functioning properly, and that the cable is good.

If the switch passes its tests, but the network test (link test, Ping test, or

IPXping test) fails, the problem is in the cabling, the remote device, or possibly

the output circuitry of the switch's port.

A frequent problem is that the wrong type of network cable is used. To connect

the switch ports to end nodes, use a “straight-through” twisted-pair cable; to

connect to hubs or other switches, use a “crossover” twisted-pair cable. Refer

to appendix A, “Cables and Connectors” in the HP AdvanceStack Switch 208/

224 Installation and Reference Guide for more information on the pin-outs

and use of these cables.

See the HP AdvanceStack Assistant online help and the switch console

advanced commands help for more information on how to execute the

network connectivity tests.

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Troubleshooting

Resetting the Switch

Resetting requires physical access to the Switch Management Module. There

are two levels of reset:

■

Hardware reset : Momentarily interrupts switch operation, performs a

complete hardware self test, clears the switch event log, and reboots the

switch.

To execute this test, press the Reset button on the Switch Management

Module with a pointed object (the button is recessed to prevent accidental

actuation). Initially, all the module and switch LEDs will be illuminated.

The test completes when the module Self Test and Fault LEDs turn off.

■

Configurat ion reset : This is a drastic action that interrupts switch

operation, clears any passwords, clears the event log, performs a

complete self test, and reboots the switch in its factory default configura-

tion. You should consider performing a configuration reset only if you

want all configurable parameters reset to the factory default values.

To execute this test, perform these steps:

1. Using pointed objects simultaneously press both the Reset and Clear

buttons on the Switch Management Module.

2. Continue to press the Clear button while releasing the Reset button.

3. When the Self Test LED begins to flash, release the Clear button.

Use the Reset and Clear buttons described in the reset procedures.

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Troubleshooting

Clearing Passwords on the Switch Console

Clearing Passwords on the Switch

Console

You can use the Clear button to clear a forgotten console password that was

previously configured on the switch.

To clear the password, follow these steps:

1. Verify the switch has powered-up, and passed self test.

1. Press the Clear button on the Management Module for at least one second.

Press the Clear button for at least one second.

Note

After the password has been cleared, access to the switch from the console

will no longer be password protected. A new password can be assigned from

the switch console.

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Troubleshooting

HP Customer Support Services

If you are still having trouble with your switch or Switch Management Module,

Hewlett-Packard offers support 24 hours a day, seven days a week through

the use of automated electronic services, including:

■

the World Wide Web

HP BBS

HP FTP Library Service on the Internet

CompuServ

HP Network Phone-In Support (NPS)

HP FIRST FAX Retrieval Service

See the perforated card at the beginning of this manual for information on

how to get technical support.

Your HP-authorized network reseller can also provide you with assistance,

both with services that they offer and with services offered by HP.

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Specifications

Physical (includes bulkhead and connector):

Width

Depth

Height

Weight

16.7 cm (6.6 in)

18.3 cm (7.2 in)

4.5 cm (1.8 in)

2.3 kg (.50 lb)

Environmental:

Operating

Non-Operating

Temperature

+0°C to +55°C

(32°F to 131°F)

-40°C to 70°C

(-40°F to 158°F)

Relative humidity

(non-condensing)

15% to 95%at 40°C (104°F)

15% to 90%

at 65°C (149°F)

Maximum altitude

4.6 km (15,000 ft)

Connectors:

The RS-232-C console port conforms to V.22 bis.

Electromagnetic:

Emissions:

FCC part 15 Class A

CISPR-22 Class A/EN 55022 Class A

VCCI Level 1

Immunity:

(See the Declaration of Conformity at the end of the Safety and Regulatory

Statements in the HP AdvanceStack Switch 208/224 Installation and

Reference Guide.)

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Specifications

Safety:

Complies with IEC 950: (1991)+A1,A2/.EN60950 I(1992)+A1,A2

Acoustic Noise: Not applicable

Management Protocols

RFC 1157

SNMP

RFC 1901-1908 SNMPv2C

RFC 1420

SNMP over IPX

Supported MIBS

RFC 1493

IETF

Bridge MIB

Entity MIB

RFC 1213

RFC 1515

RFC 1573

RFC 1650

RFC 1757

MIB-II

Ethernet MAU MIB

Interface Evolution MIB

Ethernet Interface MIB

RMON MIB

HP Switch

Config MIB

HP EASE MIB version 2

HP MIB

Extensions

Available on request. Contact your HP-authorized dealer or local HP sales

office

Communication Protocols

RFC 786

RFC 791

RFC 792

RFC 793

RFC 826

RFC 854

RFC 951

RFC 1350

Novell IPX

UDP

ICMP

TCP

ARP

Telnet

Bootp

TFTP

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Specifications

Regulatory Statements

FCC Statement (For U.S.A. Only) Federal Communications Commission

Radio Frequency Interference Statement

Note: This equipment has been tested and found to comply with the limits for

a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are

designed to provide reasonable protection against harmful interference when

the equipment is operated in a commercial environment. This equipment

generates, uses, and can radiate radio frequency energy and, if not installed

and used in accordance with the instruction manual, may cause harmful

interference to radio communications.

VCCI Class 1 ( For J apan Only)

European Community

This equipment complies with ISO/IEC Guide 22 and EN55022 Class A.

No te

This is a class A product. In a domestic environment, this product may cause

radio interference, in which case the user may be required to take adequate

measures.

Complies with Canadian EMC Class A requirements.

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Modem Configuration

Before installing the modems (one attached to the Switch Management

Module’s console port and one attached at the user end to the terminal/PC),

configure them by this procedure:

1. Connect them, one at a time, to the PC or terminal and issue the appro-

priate AT command, as described in the tables in this appendix.

Note that, in each case, the configuration string for the modem attached

to the switch is different than for the one attached to the PC or terminal.

2. Install the modems in the appropriate locations. Make sure the correct

modem is installed in each location, according to how it was configured.

The modems listed in this appendix have been tested and found to work

properly with the Switch Management Module using the initialization strings

shown.

Hayes Smartmodem Optima 28.8 (V.34)

At the switch

end:

Issue the following AT command:

AT&FQ2&C2&D3S0=1&W0

At the user end: Issue the following AT command:

AT&FW1&C1&W

Hayes Acura 288 V.34 + FAX

At the switch

end:

Issue the following AT command:

AT&FQ2&C2&D3S0=1&W0

At the user end: Issue the following AT command:

AT&FW1&C1&W

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Modem Configuration

US Robotics Courier V.FC/V.34

At the switch

end:

Issue the following AT command:

AT&F&C0S0=1&W0

At the user end: Issue the following AT command:

AT&F&W

Megahertz XJ2288 PCMCIA card modem

At the user end:

Issue the following AT command:

AT&F\N0&W

Practical Peripherals PM288MT II V.34

At the switch

end:

Issue the following AT command:

AT&F0&C2S0=1Q2&D3&W0

At the user end:

Issue the following AT command:

AT&F0&W0

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File Transfers

Overview

You can download new Switch Management Module software (operating

system—OS) and upload or download Switch 208/224 configuration files.

These features are useful for acquiring periodic switch software upgrades and

for storing or retrieving a switch configuration.

Downloading an Operating System

There are several methods you can use to download new operating system

code to the Switch Management Module. You can use any of the following

methods, whichever is more convenient:

■

the TFTP feature-- Download OScommand on the console Main Menu

HP’s SNMP Download Manager

a switch-to-switch file transfer

the switch console’s Zmodem capabilities in the console Advanced

Commands

The rest of this section describes these methods.

No te

Downloading a new OS does not change the current switch configuration. The

switch configuration is contained in a separate file that can also be transferred,

for example to be saved or used on another Switch 208/224. See “Transferring

Switch Configurations” later in this appendix.

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File Transfers

Downloading an Operating System

Using TFTP To Download the OS File

Before you use this procedure, make sure of the following:

■

The switch is properly connected to the network and is configured for

either IP or IPX service, whichever you need to communicate with the

TFTP server used for the download.

■

The OS software to download must be stored in a file on a TFTP server in

your network. (The OS file is typically available from HP’s electronic

services—refer to the perforated card at the front of this manual.)

■

You know the name of the OS file stored in the TFTP server. (For example,

j317801.cmp .)

You have determined the IP or IPX address of the TFTP server in which

the OS file has been stored.

No te

If your TFTP server is a Unix workstation, ensure that the case (upper or

lower) that you specify for the filename in the switch console Download OS

screen is the same case as the characters in the OS filenames on the TFTP

server.

1. In the switch console Main Menu, select Download OS. You will then see

this screen:

Figure C-1. The Download OS Screen (Default Values)

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File Transfers

Downloading an Operating System

2. Press [E] (for Edit).

3. With the Protocol field highlighted, use the Space bar to select either

IP or IPX, depending on the protocol in use in your network.

4. Highlight the TFTP Server field and type in the IP or IPX address of

the TFTP server in which the OS file has been stored.

5. Highlight the Remote File Name field, then type the name of the OS

file.

6. Press [Enter], then [X] (for eXecute) to begin the OS download. The

following screen then appears:

example of a TFTP

server address

example of a remote

file name on a PC

workstation

Figure C-2. Example of the Download OS Screen During a Download

7. A “progress” bar indicates the progress of the download. When the entire

operating system has been received, all activity on the switch halts and

the following message appears:

WRITING SYSTEM SOFTWARE TO FLASH, BACK SOON

After the system flash memory has been updated with the new operating

system, the Switch Management Module reboots itself and begins running

with the new operating system.

8. To confirm that the operating system downloaded correctly:

a. Select Status and Countersfrom the Main Menu

b. Select Switch Informationfrom the Status and Counters menu.

c. Check the OS Versionline. It should show the new version number.

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File Transfers

Downloading an Operating System

Using the SNMP-Based HP Download Manager

Included with your Switch Management Module is the HP AdvanceStack

Assistant CD ROM. Included in the software on that CD is a utility called HP

Download Manager. You can use that utility to download the OS to the Switch

Management Module.

To perform this procedure, do the following:

■

At a minimum, use an IBM-compatible PC with a 386 MHz or better

processor, and 8 Mbyte of RAM.

■

Make sure the PC is connected to the same network as the switch.

Obtain software and instructions from HP’s BBS or World Wide Web site.

(Refer to the “Customer Support Services” section in chapter 7, “Trouble-

shooting”. The HP Download Manager also has detailed online help that

can guide you through the procedures.

Using the Switch-to-Switch Download

If you have two or more Switch 208/224s with Switch Management Modules

installed and operating in the same network, you can download the OS

software from one Switch Management Module to another by using the

Download OS feature in the switch console interface.

To do so:

1. On the console connected to the switch that will be receiving the OS,

select Download OS from the Main Menu.

2. Enter the IP or IPX address of the remote switch containing the OS you

want to download.

3. Enter “OS” for the Remote File Name.

4. Execute the download.

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File Transfers

Downloading an Operating System

Using the Zmodem to Download the OS File

This procedure assumes that the following items have been done:

■

The PC is serially connected to the Switch Management Module Console

RS-232 port.

■

The PC can support the Zmodem file transfer protocol. This protocol is

supported by the terminal emulator on Windows NT 4.0 and Windows 95,

and on communication programs such as Procomm and Reflections.

■

The OS software to download has been stored in a file on the PC. (The OS

file is typically available from HP’s electronic services—refer to the

perforated card at the front of this manual.)

1. From the switch console Main Menu, select Advanced Commands

2. At the command prompt, enter update (This command may not be

listed in the Advanced Commands help listing.)

3. You will see a message asking if you want to overwrite the current OS.

Enter [Y], for yes, to proceed. You should then see the message

Jumping to console code ...

4. At the Switch console> prompt, enter do (for “download”).

5. You will then see a message about invoking the console download utility

and a prompt asking if you wish to continue. Enter [Y], for yes, to proceed.

6. You will then see the following message:

Please start ZMODEM download from terminal emulator,

and ignore any characters that may appear on the next line.

7. With whatever terminal emulation program you are using on your PC,

select the Zmodem file transfer method and send the OS file (for example,

j317801.cmp) as a binary file to the Switch Management Module.

Your terminal emulation program should provide information on the

success of the transfer and an indication of when it is completed.

8. When the OS file transfer completes, the switch will automatically reboot

and activate the new OS.

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File Transfers

Troubleshooting TFTP Downloads

If a TFTP download fails, the Download OS screen indicates the failure.

message Indicating TFTP

download failure

Figure C-3. Example of Message for Download Failure

To find more information on the cause of a download failure, examine the

messages in the switch’s Event Log. (See “Event Log” on page 5-11.)

Some of the causes of download failures include:

■

Wrong protocol specified for the Protocol parameter

■

Incorrect or unreachable address specified for the TFTP Server parame-

ter. This may include network problems. Try pinging the server to test the

connectivity.

■

Incorrect name specified for the Remote File Name parameter, or the

specified file cannot be found on the TFTP server. This can also occur if

the TFTP server is a Unix machine and the case (upper or lower) for the

filename on the server does not match the case for the filename entered

for the Remote File Name parameter in the Download OS screen.

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File Transfers

Troubleshooting TFTP Downloads

■

One or more of the Switch Management Module’s IP or IPX configuration

parameters are incorrect. Try pinging the server to test the connectivity.

For a Unix TFTP server, the file permissions for the OS file do not allow

the file to be copied.

Another console session (through either a direct connection to a terminal

device or through Telnet) was already running when you started the

session in which the download was attempted.

No te

If an error occurs in which normal switch operation cannot be restored, the

switch automatically reboots itself. In this case, an appropriate message is

displayed in the copyright screen that appears after the switch reboots. You

can display the same information by selecting the Advanced Commands

option from the Main Menu and executing the History command.

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File Transfers

Transferring Switch Configurations

You can use the following commands to transfer switch configurations

between the switch and a PC or Unix workstation.

Command

Function

Get

Download a switchconfigurationfile froma networkedPCorUnixworkstation

using TFTP.

Put*

ZGet

Upload a switch configuration to a file in a networked PC or Unix workstation

using TFTP.

Uses a Zmodem-compatible terminalemulationprogram todownloada switch

configuration file from a PC or Unix workstation connected to the switch’s

console port (either directly or via a modem).

ZPut*

Uses a Zmodem-compatible terminal emulation program to upload a switch

configuration to a file in a PC or Unix workstation connected to the switch’s

console port (either directly or via a modem).

*Can also be used to send the output of certain commands to a file on another device.

Using Get and Put To Transfer a Configuration Between the

Switch and a Networked PC or Unix Workstation

To use Get or Put, you need the following:

■

The IP or IPX address of the remote PC or Unix workstation that is acting

as a TFTP server

The name assigned to the configuration file you will use on the remote PC

or Unix workstation

No te

The Get operation overwrites the switch’s current configuration with the

newly retrieved configuration. The switch then automatically reboots itself.

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File Transfers

Transferring Switch Configurations

1. From the Main Menu select Advanced Commands

2. At the command prompt, execute one of the following commands:

To upload a configuration to a file on a PC or Unix workstation:

put IP_address CONFIG remote_file

put IPX_address CONFIG remote_file

To download a configuration from a file on a PC or Unix workstation:

get IP_address CONFIG remote_file

get IPX_address CONFIG remote_file

where: IP_addressor IPX_addressis the address of the PC or Unix

workstation in which the configuration is to be stored.

remote_fileis the name of the configuration file in the PC or

Unix workstation

Using ZGet and ZPut To Transfer a Configuration Between

the Switch and a PC or Unix Workstation

The PC or workstation must be operating as a VT-100 or ANSI terminal, and

can be connected either directly or via a modem to the switch’s console port.

Also, the PC or workstation must be running a Zmodem-compatible terminal

emulation program. If a manager password has been set, you must log on to

the switch using that password in order to execute the Zget or Zput commands.

No te

ZGet overwrites the switch’s current configuration with the downloaded

configuration.

To use ZGet or ZPut, you need the name assigned to the configuration file on

the PC or workstation

1. On the PC or workstation, start the Zmodem-compatible terminal emula-

tion program, then follow the instructions provided with the program to

prepare for a file transfer.

2. From the switch console’s Main Menu select Advanced Commands.

C-9

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File Transfers

Transferring Switch Configurations

3. At the command prompt, execute one of the following commands:

To upload a configuration to a file on a PC or Unix workstation:

zput config remote_file [overwrite] [dos/unix]

To download a configuration from a file on a PC or Unix workstation:

zget config remote_file [dos/unix]

where: remote_fileis the name of the file in which the configuration

is stored

[overwrite] is one of the following optional values:

(the default) allows a new file to be created, but

does not allow an existing file to be overwritten.

creates a new file or overwrites an existing file.

[dos/unix] is one of the following optional values:

(the default) specifies the DOS file format.

specifies the Unix file format.

If the PC or workstation does not respond to a ZPut or ZGet command

within approximately 70 seconds, the command times out and control

returns to the prompt line.

C-10

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Spanning Tree Operation

Spanning Tree Protocol (STP)

The Switch 208/224 Management Module uses the IEEE 802.1d Spanning Tree

Protocol (STP) to ensure that only one path at a time is active between any

two nodes on the network. In networks where there is more than one physical

path between any two nodes, STP ensures a single active path between them

by blocking all redundant paths.

STP is necessary in such networks because having more than one path

between a pair of nodes causes loops in the network, which can result in a

switch detecting the same node on more than one port. This results in

duplication of messages, leading to a “broadcast storm” that can bring down

the network.

No te

The default STP setting in the switch is “Off”. If you are using the switch to

provide redundant network paths, you should reconfigure the Spanning Tree

Protocol to “On”. Refer to “Spanning Tree Configuration” in chapter 4, “Con-

figuring the Switch From the Console” for procedures on enabling STP.

While allowing only one active path through a network at any time, STP retains

any redundant physical path to serve as a backup (blocked) path in case the

existing active path fails. Thus, if an active path fails, STP automatically

activates (unblocks) an available backup to serve as the new active path for

as long as the original active path is down. In the event of a topology change

such as a switch, bridge, or data link failure, STP develops a new spanning

tree that may result in changing some switch ports from the blocking state to

the forwarding state.

For example, see the illustration on the next page.

D-1

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Spanning Tree Operation

Spanning Tree Protocol (STP)

•

Active path from node A to node B: 1—> 3

Backup (redundant) path from node A to node B: 4 —> 2 —> 3

switch A

path cost: 100

path cost:

100

path cost: 100

switch C

path cost: 200

switch B

switch D

node

Figure D-1. Example of Logical and Redundant Paths Between Two Nodes

D-2

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Index

Clear button

description … 2-1

Actions menu

for configuration reset … 7-7

to clear password … 3-13

clearing a password … 7-8

command prompt … 3-17

exit … 3-17

commands, for system management … 3-17

communication protocols

list of … A-2

displaying help for commands … 4-2

location on screen … 3-9

active path, STP … D-1

address aging

description … 2-3

from System Configuration screen … 4-4

address table

for each port … 5-8

for the switch … 5-7

purpose of … 5-1

communities, SNMP … 4-12

configuration

accessing the screen … 4-3

Bootp … 4-10

console … 4-16

factory default … 3-1, 3-17, 4-1, 7-7

factory default of STP … 4-1, 4-17

features of … 4-1

AdvanceStack Assistant

managing the switch with … 6-2

ANSI required terminal

for transferring configuration … C-9

asterisk symbol

meaning of … 3-10

IP … 4-8

IPX … 4-6

network monitoring … 4-19

port … 4-5

resetting to factory default … 7-7

saving … 4-21

serial link … 4-15

SNMP … 4-12

baud rate

autosensing of … 3-6

blocked port … D-1

blocked port, STP … D-1

blocking state, STP … D-1

Bootp

configuring the switch for … 4-9

for in-band access … 3-2

how to setup … 4-10

table file examples … 4-10

used for IP address … 4-8

broadcast storm … D-1

buffers

Spanning Tree … 4-17, D-1

System screen … 4-4

transferring switch config to a PC … C-8

trap receivers … 4-14

Configuration Screen

options on … 4-3

console

about the interface … 3-1

connecting to … 3-4

ending … 3-7

information about … 5-3

functions of … 3-1

cable

how to connect out-of-band … 3-2

navigation of … 3-9–3-10

starting/ending a session … 3-6

using Telnet … 3-2

RS-232 for modem connection … 3-4

serial for direct connection … 3-3

Console Configuration screen … 4-16

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console RS-232

configuration of … 4-16

description … 2-2

event log

controlling what displays there … 4-16

description of … 5-12

entering and navigating … 5-13

for display of traps … 4-14

displaying … 3-6

crash information

when it displays … 3-6

customer support services … 7-9

how configuration reset affects it … 7-7

meaning of severity code … 5-12

why it clears … 5-14

exiting from command prompt … 3-17

date format

for event log … 5-12

date parameter

factory default configuration

description … 4-1

setting … 4-4

DEFAULT_CONFIG

about this prompt … 3-17

as system name … 4-4

delete password protection

meaning of … 3-14

for spanning tree … 4-1

resetting back to … 7-7

failure

of OS download … C-6

of self test, indications … 7-2

Fault LED

DHCP

description of … 2-2

description of states … 7-2

features, Switch Management Module

in detail … 2-3

summary of … 1-1

file transfers

how it is supported … 4-10

diagnostic tests … 7-4

testing the ports and links … 7-5

testing the Switch and Management

Module … 7-4

down time

where displayed … 3-6

Download Manager

configuration … C-8

how to … C-1

OS … C-1

how to use … C-4

format

download OS (operating system)

and event log … 5-14

configuration to a PC … C-8

prerequisites for IP and IPX … C-2

switch to switch … C-4

using Download Manager … C-4

using TFTP … C-2

of date and time in event log … 5-12

of event log entries … 5-12

forwarding state, STP … D-1

forwarding table. See address table.

full duplex

configuring the ports … 4-5

feature of module … 2-3

using Zmodem from a PC … C-5

gateway

EASE

entering address of … 4-9

frame encapsulation type … 4-6

manually configuring IP … 4-9

where to specify IP address … 4-8

where to specify IPX address … 4-6

description of … 6-4

enabling a port

how to … 5-4

ending a console session … 3-7

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Get command

for a configuration download … C-8

requirements for … C-8

IPX

configuration of encapsulation … 4-6

gateway … 4-6

Gateway Encap … 4-7

network number … 4-6

IPX test … 7-6

ipx.mib

hardware reset

effect on switch … 7-7

supported standard on switch … 6-2

how to perform … 7-7

Help

displaying for individual parameters … 4-2

for actions or data fields … 4-2

learning bridge … 3-1, 4-1

LEDs

Help line

about … 3-9

location on screens … 3-9, 4-2

History command

description of … 2-1

during self test … 1-4

Fault … 2-2

to display a previous message … C-7

HP AdvanceStack Assistant … 6-1

HP Download Manager

usage … C-4

Self Test … 2-2

used for diagnostics … 7-2

Link

serial … 4-15

HP proprietary MIB

link status

descriptions of … 6-2

for a port … 5-5

link test … 7-5

LOGOUT

ending a console session … 3-7

to start required password login … 3-13

definition of … 5-4

IEEE 802.1d … 4-17, D-1

setting up spanning tree … 4-17

in-band console access

types of … 3-2

MAC address

and Bootp … 4-10

inbound Telnet

displaying for a port … 5-8

how it can be used … 2-2

listing of learned … 5-7

Main menu

description of … 4-16

included parts … 1-2

installing

module … 1-1

displaying … 3-3

Interconnect Manager

See AdvanceStack Assistant

features of … 3-8

options for … 5-1

options on … 4-3

configuration … 4-6, 4-8

errors in configuration … 7-4

setting the gateway address … 4-8

where to specify subnet mask … 4-8

IP/IPX

manager addresses

listing to restrict SNMP access … 4-13

manager password … 3-13

definition of … 3-11

recovering … 3-14

download prerequisites … C-2

when it appears … 3-15

manually configuring an IP address … 4-9

media

definition of screen display … 5-4

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memory

amount of … 5-3

message buffers

definition of … 5-3

OS download

effect on event log … 5-14

Outbound Telnet

description of … 4-16

MIB

list of supported ones … 6-2, A-2

mode, port

configuring … 4-5

display … 5-4

modem

packet traffic/buffers

amount of … 5-3

password

case-sensitivity of … 3-13

clear … 7-7

configuration of … B-1

connecting to switch … 3-4

modem cable pin-out … 3-5

deleting if lost … 3-13

if incorrect … 3-12

number of characters allowed … 3-13

setting Manager and Operator … 3-12

when prompt appears … 3-6

path cost, STP … D-2

performance of switch

checking … 5-3

ping test … 7-5

pin-out

modem cable … 3-5

port

module

features added to switch … 1-1

features summary … 2-3

installing … 1-1

removing … 1-4

Monitor Port

configuring … 4-19

description of … 4-19

monitoring traffic … 4-19

multiport bridge … 4-1

configuration … 4-5

console. See console port

displaying data for … 5-4

traffic patterns for … 5-5

port address table … 5-7

sample display … 5-9

selecting … 5-8

port cost

See Spanning Tree

port counters

navigation

console interface … 3-9–3-10

event log control keys … 5-13

Network Monitoring Port screen … 4-19

network number, IPX … 4-6

node address, IPX … 4-6

Novell Standard IPX MIB

support in switch … 6-2

displaying … 5-5

resetting … 5-5

port, STP

operator mode

blocked … D-1

when no manager password … 3-12

operator password … 3-13

definition of … 3-11

entering … 3-13

priority

See Spanning Tree

proprietary MIB

list of … 6-2

lost … 3-14

public SNMP community

where used … 6-3

Put command

download failure … C-6

switch-to-switch download … C-4

troubleshooting … C-6

version of switch … 5-3

function of … C-8

requirements for … C-8

6 – Index

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severity code, definition of … 5-12

SNMP … 6-1

reboot

Communities screen … 4-12

how to configure … 6-3

how to configure communities … 4-12

IP address … 6-3