Nortel Networks Server NN44470 100 User Manual

Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
NN44470-100  
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Contents  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
NN44470-100 01.01 Standard  
Release 6.0 03 June 2008  
Copyright © 2008, Nortel Networks  
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New in this release  
The following sections detail what is new in Media Application Server 6.0 for  
AS 5300 Fundamentals (NN44470-100).  
Navigation  
Features  
See the following sections for information about feature changes:  
MAS and AS 5300 integration  
The Media Application Server (MAS) 6.0 supports integration with the  
Application Sever (AS) 5300. For more information, see see the figure MAS  
Administration and security  
The MAS 6.0 for AS 5300 release contains new features that include SIP TLS,  
Secure SRTP, and platform security. For more information, see see the figure  
Other changes  
The MAS 6.0 documentation suite contains reorganized content from the  
MAS 5.1, 5.0, and 4.0 documentation suites.  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
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Introduction  
The Media Application Server (MAS) is a software platform for hosting  
multimedia applications. This document explains MAS platform fundamentals.  
Navigation  
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Fundamentals  
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MAS installation  
This chapter explains MAS installation fundamentals. For step-by-step  
information about how to install the MAS platform, see Nortel Media  
Application Server 6.0 for AS 5300 Installation (NN44470-300).  
Navigation  
Architecture and supported hardware and software  
This section details the system architecture for MAS 6.0 for Application Server  
(AS) 5300 release as well as the supported hardware and software for that  
platform. For more information, refer to Media Application Server 6.0 for AS  
5300 Planning and Engineering (NN44470-200).  
System architecture  
The MAS platform is a software-based, media processing server. Software on  
the host server performs all media processing. The MAS architecture permits  
scalability for all core functions of the platform, including signaling, application  
execution, content management, and media processing.  
Network architecture  
The MAS platform can scale from a small, duplex server solution. The system  
exploits a multiprocess, multithreaded architecture that is designed to take  
advantage of multiple processor core and hardware platforms. The server  
achieves scalability across multiple computers by replicating the entire  
system.  
Supported hardware and software  
The MAS platform uses commercial operating systems and commercial  
hardware platforms for all processing.  
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MAS installation  
Supported hardware platform  
You can install the MAS software on an IBM X3550. The X3550 has an Intel  
XEON 5140 2.33 GHZ processor, 2 GB of RAM and a SCSI hard drive.  
Supported operating system  
You can install the MAS software on Windows 2003 operating system (OS). To  
comply with the Defense Information Systems Agency (DISA) Security  
Technical Implementation Guideline (STIG) and GR-815 compliancy, you must  
install additional OS hardening patches and security software must be installed  
on the MAS before you install MAS platform or MAS application software.  
MAS platform core components  
The MAS platform software includes the following core components:  
Session controller  
The Session Controller (SC) provides the application execution environment  
and manages all platform resources. The Media Controller provides the  
conduit for communication between components and is the core of the  
platform.  
VXML browser  
The VXML Browser (VXMLI) provides the execution environment for VXML  
based applications.  
SIP Multimedia Conductor (SIPMC)  
The SIP Multimedia Conductor (SIPMC) provides SIP signalling and session  
management capabilities.  
Multimedia Controller  
The Multimedia Controller (also called the SoftIVR Controller, or SC) is the  
core of the MAS platform. The SC provides the conduit for communication  
between components, provides the environment for application execution,  
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MAS installation  
and manages all platform resources. The SC is a client with respect to all other  
components. The SC connects to all components identified as part of one  
virtual system.  
IVR media processor (IVRMP)  
The IVR media processor IVRMP provides audio and video streaming, digit  
collection, automatic speech recognition (ASR) and Text-to-Speech (TTS)  
capabilities.  
Conference media processor  
The Conference media processor (ConfMP) provides audio and video  
conferencing functions to the remainder of the platform.  
Multimedia Content Store  
The Multimedia Content Store (CStore) manages all content types and  
ensures that you can access content reliably and consistently within a  
platform cluster.  
Stream source  
The Stream source (streamsource) provides continuous pretranscoded real-  
time audio to the IVRMP to facilitate a radio broadcast effect. Multiple IVRMP  
channels use this feature to listen to the same real-time audio stream without  
transcoding the stream on each channel or connecting each channel to a  
remote server. Primarily, the SSRC is used for music-on-hold streaming or  
connecting to Internet streaming radio servers.  
Reporter  
Reporter (reporter) generates scheduled reports (CSV, HTML) with optional  
FTP/SMTP delivery. Reporter also replicates OM and call detail records.  
MAS installation  
The MAS platform and its associated applications are installed together on a  
commercial off-the shelf (COTS) server. The server is shipped with a  
hardened version of Microsoft Windows Server 2003 preinstalled. After you  
power on the server, change the IP address, netmask, gateway, and host  
name. A Gigabit Ethernet (GbE) (recommended) or 100 MB full-duplex  
network connectivity is required. Quality of service (QoS) policies on the  
switch connecting directly to the server must trust the server to allow  
Differentiated Services Code Point (DSCP) markings to flow through the  
switch.  
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MAS installation  
Uninstallation  
Under normal circumstances, you need not uninstall the MAS platform unless  
you want to perform a clean installation. Before you install the platform, you  
must uninstall all applications and close all instances of the Nortel MAS  
Console. If instances of the Nortel MAS Console are running when you  
uninstall the MAS platform, you must restart the server.  
Reinstallation  
If you need to reinstall the MAS platform, you can use the MAS installation  
DVD. The MAS installation DVD contains an automated installer. The MAS  
platform is contained in a single installer; each application is bundled in a  
separate installer. After you insert the DVD, locate and run the setup program.  
MAS installation verification  
After you install the MAS platform, you must verify that the IP address and  
host name are correct.  
Supported third-party software  
Nortel supports McAfee VirusScan Enterprise Edition 8.5 only.  
Options for MAS application deployment  
The following sections provide an overview of the applications. available for  
use on the MAS 6.0 platform, as well as the application deployment options  
for the platform.  
Meet Me Conferencing  
The Meet Me Conferencing application provides reservation-less audio  
conferencing on the MAS platform. You can use Meet Me Conferencing for  
private conferencing at any time. Meet Me Conferencing is controlled by the  
chairperson, who is assigned the role by an Application Administrator (AA).  
For more information about Meet Me Conferencing, see Nortel Media  
Application Server 6.0 for AS 5300 Meet Me Conferencing Fundamentals  
(NN44470-103).  
Ad Hoc Conferencing  
Use Ad Hoc Conferencing to join together multiple simultaneous calls into a  
single conference call. You can initiate a conference call from any client. To  
initiate a conference, place a number of calls on hold and then select the Join  
button in the Multimedia PC Client to transfer the calls to the conference  
server and start the conference. The conference originator may leave the  
conference without interrupting the call. The conference server terminates  
the call when there is only one participant left. For more information about Ad  
Hoc Conferencing, see Nortel Media Application Server 6.0 for AS 5300 Ad  
Hoc Conferencing Fundamentals (NN44470-104).  
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MAS installation  
Music On Hold  
With the Music On Hold application, a system administrator can provision the  
MAS system to play music while a caller is hold. The Music on hold application  
lets a caller know that the call is still connected. It is possible to implement the  
Music on Hold application for the following types of hold: end-user, transfer,  
and Call park. This application continuously plays for the user on hold and  
does not restart the tune each time a user is put on hold. For more information  
about Music on Hold, see Nortel Media Application Server 6.0 for AS 5300  
Music on Hold Fundamentals (NN44470-106).  
Announcements  
The Announcements application plays recordings for branding, causes, and  
treatments. You can use announcements to indicate the status of calls and  
internal session manager conditions (treatments); which are used in all-circuit  
busy situations. Announcements also provides treatment when calls fail to  
complete, and provides branding (for example, Welcome to Nortel Networks).  
For more information about Announcements, see Nortel Media Application  
Server 6.0 for AS 5300 Announcements Fundamentals (NN44470-105).  
Unified Communications  
The Unified Communications application provides users with integrated  
access to their voice-mail messages from a preferred client device, such as a  
PC, voice over IP (VoIP) phone, wireless phone, or a traditional circuit  
switched telephone. One single mailbox can be used by multiple telephony  
devices and the messages deposited in this common mailbox may optionally  
be mailed to a user’s e-mail client, offering another convenient access option  
for voice mail message playback. Users manage their account through a  
traditional Telephony User Interface (TUI) or through the web-based Personal  
Agent (PA), which may be optionally configured for the user. For more  
information about Unified Communications, see Nortel Media Application  
Server 6.0 for AS 5300 Unified Communications Fundamentals (NN44470-  
102).  
Application deployment options  
In Release 6.0, Media Application Servers are deployed as duplex clusters  
(pairs) to ensure redundancy. In a duplex cluster, the MAS applications are  
installed on both servers. The only exception to this rule is Meet Me, which can  
be installed in an N+1 cluster configuration. You can deploy MAS applications  
in one of three different deployment scenarios:  
Dedicated Deployment  
Co-resident Application Deployment (including Meet Me)  
Co-resident Application Deployment (excluding Meet Me)  
The deployment scenario you select is determined by your capacity  
requirements.  
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MAS installation  
Dedicated deployment  
In a dedicated deployment scenario, each application is deployed on its own  
MAS pair to the maximum capacity of that single application. However, for the  
most efficient use of resources, a combination of dedicated deployment and  
multi application deployment is required.  
Co-resident deployment  
In a co-resident deployment, up to five MAS applications (Meet-Me, Ad Hoc,  
Music on Hold, Announcements, and Unified Communications) can be  
deployed on the same MAS duplex.  
If you choose a co-resident deployment, you must stay within the engineered  
capacity limits for that co-resident deployment. You cannot, for example,  
expand the capacity for Meet Me and balance that by reducing Unified  
Communications capacity. If you require additional application capacity, you  
can add an additional MAS pair and deploy a dedicated service to  
accommodate the additional capacity requirements for that service. For  
example, if you currently have a combination five deployment, and you require  
additional Meet Me capacity, you can purchase additional Meet Me licenses  
and servers and deploy a dedicated Meet Me server cluster to handle the  
increased capacity.  
The available co-resident deployment options are defined in the following  
sections.  
Co-resident Application Deployment (including Meet Me)  
In a Co-resident Application Deployment (excluding Meet Me), all five MAS  
applications are deployed on the same MAS pair.  
Co-resident Application Deployment (excluding Meet Me)  
In a Co-resident Application Deployment (including Meet Me), Ad Hoc, Music  
on Hold, Announcements, and Unified Communications are deployed on one  
MAS pair and a separate MAS pair is dedicated to Meet Me Conferencing.  
Maintenance Releases  
The MAS is updated or downgraded using executable installers (DVDs). To  
update the MAS to the latest maintenance release, you must obtain the latest  
maintenance release DVD and install the software. To downgrade to an earlier  
maintenance release, you must run the installer on desired maintenance  
release DVD. For the procedures to update and downgrade maintenance  
releases, see Nortel Media Application Server 6.0 for AS 5300 Installation  
(NN44470-300).  
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MAS commissioning  
This chapter describes the items that you can configure on the MAS platform.  
For detailed information, see Nortel Media Application Server Commissioning  
(NN44470-301).  
Navigation  
AS 5300 commissioning for MAS  
For more information about commissioning the Application Server (AS) 5300  
system for use with MAS, see Nortel Media Application Server  
Commissioning (NN44470-301) and the AS 5300 documentation suite.  
Packaged applications  
You can deploy packaged applications on the MAS platform. Packaged  
applications are prepackaged applications that you configure on the system  
using an installer.  
Attention: This release does not currently support custom applications.  
Packaged application installation and licensing  
You can install packaged applications after you install and configure the MAS  
platform. As part of the installation process, you must configure license keys  
for all packaged applications that you install.  
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MAS commissioning  
To view installed packaged applications, use the Nortel MAS Console. The  
Nortel MAS Console lists the application version and the current operational  
state for that application. An example of a packaged application would be  
Recorder.  
Configuration data  
Each packaged application has one or more configuration parameters that  
you can modify to alter the behavior of the application. To view and modify  
these application-specific parameters, use the Nortel MAS Console.  
Operational state  
Each packaged application has an operational state that you can view and  
modify. To view and modify the operational state of an application, use the  
Nortel MAS Console.  
You can select one of the following operational states:  
Unlocked—This is the default. Normal call processing is performed for the  
application.  
Locked—When the application enters a Locked state, existing sessions for  
that application are terminated and the system redirects new traffic. You  
typically place the application into a Locked state when performing  
maintenance (for example, application upgrades) to the application.  
Pending Lock—When the application enters a Pending Locked state, the  
system redirects new traffic for that application, while existing sessions are  
preserved.  
MAS clusters  
A MAS cluster is a collection of MAS nodes that work closely together. A MAS  
cluster shares the following resources:  
SNTP server for clock synchronization  
persistent content storage  
Controller Peer Ring  
redundant license servers  
A cluster consists of N+1 active MAS servers where N is a maximum of 7 for  
high availability and redundancy. An additional server is used as a spare to  
accommodate one server failure. The spare server is active and handling  
traffic, but the entire system is engineered to N servers of capacity (not N+1).  
This ensures that enough remaining capacity is available to handle peak traffic  
if one server fails.  
The following terminology describes the different cluster types:  
Duplex—a cluster consisting of two MAS nodes  
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MAS commissioning  
N-way—a cluster consisting of three or more MAS nodes  
Because the cluster is based on system replication, you must configure the  
same applications on all of the MAS servers in the same cluster and provision  
any application data (such as subscriber information) for that cluster. The SIP  
proxy must support load balancing across multiple MAS nodes in the same  
cluster.  
Persistent content storage  
Configuration of the persistent content storage depends on  
the number of nodes in a cluster  
the applications that are provisioned for that cluster  
how those applications make use of the persistent content storage  
For duplex configuration, the cluster consists of two nodes. On both nodes,  
configure the Content Store Local Function key to Master, configure the  
Content Store Peer Master Server key to contain the IP address of the peer  
master node, and configure the Content Store Remote Server(s) key to a  
blank value. To view an example of a duplex cluster, see CStore duplex cluster  
CStore duplex cluster configuration  
For N-way configuration, the cluster consists of three or more nodes. On the  
first two nodes, configure the Content Store Local Function key to Master,  
configure the Content Store Peer Master Server key to contain the IP address  
of its peer master node, and configure the Content Store Remote Server(s)  
key to a blank value. Disable the CStore for all other nodes.  
For all other nodes, configure Content Store Local Function to Idle and  
configure the Content Store Remote Server(s) key to contain the IP address  
of both CStore masters. Configure the Content Store Peer Master Server key  
to blank. To view an example of an N-way cluster, see CStore N-way cluster  
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MAS commissioning  
CStore N-way cluster configuration  
Controller Peer Ring  
Applications use the Controller Peer Ring to send and receive events to the  
various MAS nodes in the cluster. Configuration of the Controller Peer Ring  
depends on the number of nodes in the cluster and if the provisioned  
applications use the Controller Peer Ring. To create the ring, configure each  
MAS node with a primary and backup controller peer. You can then  
dynamically add or remove MAS nodes to and from the Controller Peer Ring.  
For duplex configuration, configure the Controller Peer Primary Server key to  
the IP address of the other media server and configure the Controller Peer  
Backup Server key to the IP address of the same server. To view an example  
of a duplex controller ring, see Duplex controller ring (page 16).  
Duplex controller ring  
For an N-way configuration, for Node n, configure the Controller Peer Primary  
Server key to the IP address of Node n+1 and the Controller Peer Backup  
Server key to the IP address of Node n+2. To view an example of a 4-way  
controller ring, see 4-Way controller ring (page 17).  
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MAS commissioning  
4-Way controller ring  
SIP signaling  
SIP configuration is broken into the following categories: General, Domains,  
Accounts, Trusted Nodes, and Routes. The following sections describe these  
categories in more detail.  
SIP properties  
You can modify the following SIP properties.  
SIP properties  
Property  
Description  
Always use SIP default  
outbound proxy  
If enabled, the system routes SIP requests, which  
do not match domain proxy configuration, through  
the default outbound proxy (if configured), even if  
the IP address is specified in the host portion of the  
destination Universal Resource Indicator (URI).  
Answer Delay (rings)  
Represents the number of rings before an  
incoming SIP call is answered. To configure the  
duration of a ring, use the Ring Interval engineering  
parameter. Zero rings means that the call is  
immediately answered.  
Hide SIP User-Agent Header  
If enabled, the User-Agent header is not included  
in SIP messaging.  
SIP domains  
You must define all SIP domains on the MAS. You must configure a SIP  
domain before you can configure SIP accounts and routes.  
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MAS commissioning  
The platform has an internal domain called the wildcard domain, which is  
represented with an asterisk and is the default domain if no matching domain  
is found.  
SIP accounts  
SIP accounts are used for application registration in the SIP network. The  
MAS registers all accounts against the registrar servers. For information about  
the servers, see SIP registrar servers (page 19). You can view, add, and  
delete SIP accounts.  
SIP trusted nodes  
MAS processes SIP traffic from trusted nodes only (for example, proxies and  
gateways). Any requests from a nontrusted node are rejected. You can view,  
add, and delete trusted nodes.  
Attention: If you add or delete a trusted node, you must restart the platform  
for the change to take effect.  
SIP routes  
Use SIP routes to define all proxy and registrar servers with which a MAS  
node communicates. You can configure up to 32 routes for each domain.  
SIP proxy servers  
A SIP proxy server accepts MAS requests and queries the SIP registrar server  
to obtain the recipient addressing information. The proxy server then forwards  
the request directly to the recipient if the recipient is in the same domain or to  
another proxy server if the recipient is in a different domain.  
The MAS platform uses proxy server routes to route outbound SIP requests  
to the appropriate proxy server for outbound traffic load sharing and failover.  
Routes are selected based on the domain (or subdomain) lookup. If no  
matching domain is configured, the default wildcard (*) route is used. For  
example, if an outbound call is made to [email protected], the routes  
associated with the techtrial.com domain are selected.  
On the first routing attempt, the MAS platform selects active routes that are  
online based on the lowest priority only. The weight is used to select routes  
within the same priority level. Route selection from the next priority level is  
chosen automatically only if the lower priority routes are either offline or fail to  
respond.  
For load sharing configurations, you can define multiple routes with the same  
priority. For failover configurations, configure the primary routes with  
priority = 0 and weight = 10 and configure the secondary routes with  
priority = 1 and weight = 10.  
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MAS commissioning  
SIP registrar servers  
A SIP registrar server is a database that contains the location of all user  
agents within a domain. MAS registers its applications with all configured SIP  
registrars. Registration is optional based on MAS configuration. Digest  
authentication is supported.  
Media conferencing  
MAS supports multimedia conferencing for both audio and video streams. You  
can use one of the following conferencing algorithms: basic and premium.  
Basic conferencing algorithm  
The basic conferencing algorithm mixes the two audio streams with the  
highest energy and provides the mixed audio to the remaining participants.  
The two participants with the highest energy audio streams receive only the  
other active participant's audio so they do not hear themselves. The  
participant with the highest energy with of the two highest energy speakers is  
known as the primary active speaker. The other participant is the secondary  
active speaker. (The system continually monitors the energy of all participants  
in a conference, and using threshold algorithms, changes the conference  
focus point.)  
When some or all of the participants in the conference have corresponding  
video streams, the video streams of the primary active speaker are replicated  
and sent to those participants. The primary and secondary speakers see only  
each other if they have video-enabled clients. The system attempts to provide  
video participants with video when possible. If the active speaker does not  
have video capabilities, participants receive a configurable replacement video,  
which by default is an icon of a megaphone.  
Premium conferencing algorithm  
A more advanced conferencing algorithm (called premium conferencing)  
mixes up to four parties simultaneously. Each channel runs a voice activity  
detector (to determine speech versus background noise), an automatic gain  
control algorithm, and a dynamic jitter buffer with compaction and packet loss  
concealment. This algorithm is suitable for mixing large conferences.  
Number of conferences and participants  
MAS has no hard limitations on how many simultaneous conferences can  
exist on the system, or how many participants can be in each conference. The  
maximum number of participants in a single conference, without bridging  
multiple conferences together, is limited only by the capacity of the scaled  
system, which can vary based on hardware and the operating system.  
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MAS commissioning  
Mixing different codecs  
The system can mix participants with potentially different codecs in the same  
conference. To achieve this, the system transcodes the incoming streams into  
a common format, mixes, and then provides each participant with the correctly  
mixed audio. The system optimizes for multiple participants by transcoding the  
resulting mixed audio based upon a grouping of conference participants. If  
every participant uses identical codecs, at least three groups exist in a  
conference.  
The first group contains the primary speaker, the second group contains the  
secondary speaker, and the third group contains the remainder of the  
participants. The groups describe the different versions of the mixed audio  
required in a conference. The first and second groups exist because the  
primary and secondary speakers do not hear their own voice, thus they must  
receive a different version of the audio than other participants. The third group  
is for all other participants who require the mixed audio of both active  
speakers.  
The system must transcode all incoming audio streams to test for energy.  
However, if the basic conference algorithm is used, the system must  
transcode only the audio of each group and then replicate for each participant  
as needed. This conserves system resources. If multiple codecs exist in a  
single conference or if the premium conference algorithm is used, additional  
groups are required. The system can, therefore, optimize conferences with  
more than three participants because the additional system resources  
required for each participant includes transcoding the incoming audio stream  
and testing for energy. The additional participants are assigned to existing  
groups as needed so they receive the same audio as other group members.  
The MAS can provide additional media processing functions for conferences  
on a global conference basis or for each participant. Optionally, the system  
can allocate a global announcement port that provides broadcast  
announcement capability to all participants. Additionally, the system can  
allocate a pseudo resource for each participant that enables the system to  
perform digit collection, speech recognition, and whisper-like functions for a  
specific individual.  
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MAS commissioning  
Media settings  
This section describes audio codecs, video codecs, and digital relay.  
Audio codecs  
To configure audio codec settings, use the Nortel MAS Console. You can  
complete the following configuration tasks for audio codecs:  
Enable or disable audio codecs. The following audio codecs are  
supported:  
— G.711-ULAW  
— G.711-ALAW  
— G.729A  
— EVRC-0  
Configure the preferred order of enabled codecs for negotiation (Session  
Description Protocol [SDP] answer) or default SDP (SDP offer).  
Enable packet time (ptime) for each codec.  
Configure the default ptime for each codec.  
Video codecs  
To configure video codec settings, use the Nortel MAS Console. You can  
configure the following video codec settings:  
Enable or disable video codecs. The following video codecs are  
supported:  
— H.263  
— H.263+  
— H.263++  
— NNVC  
Configure the preferred order of enabled codecs for negotiation (SDP  
answer) or default SDP (SDP offer).  
Enable frame rates for each codec.  
Configure the Annex profile for each codec (if required).  
Digit relay  
To configure digit relay, use the Nortel MAS Console. You can configure the  
following digit relay properties:  
Enable or disable the dual-tone multi-frequency (DTMF) relay method.  
The following DTMF relay methods are supported:  
— INFO Digits  
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MAS commissioning  
— RFC2833  
Attention: If you remove all methods, inband DTMF detection is forced,  
which is not recommended because it degrades system capacity.  
Configure the preferred order of enabled DTMF relay methods for  
negotiation (SDP answer) or default SDP (SDP offer).  
Configure the RFC2833 payload type. Nortel recommends that you select  
the default payload type, which is determined dynamically. However, some  
clients require a fixed payload type.  
Conferencing  
To configure conferencing, use the Nortel MAS Console. You can configure  
the following conferencing properties:  
Enable or disable the Automatic Gain Control. The default is enabled.  
Enable or disable the Customized Replacement Video property. When  
enabled, customer-supplied replacement video files are used. The default  
selection is enabled.  
Enable or disable the Lock Video Format on First Party in Conference property.  
When enabled, the first party determines the video format. If the first party  
is audio-only, the conference has no video. When disabled, the first party  
with active video determines the video format. The default is enabled.  
Enable or disable the Replacement Video For Active Speaker property.  
When enabled, the active speaker receives replacement video in  
conferences where one or more than two (but not two) parties are enabled  
to speak. The default is enabled.  
For the Silent Conference Teardown Delay (sec) property, configure the  
number of seconds a conference must be silent before it is terminated (0  
indicates no termination). The default value is one hour.  
Quality of Service  
MAS supports Differentiated Services (DiffServ) packet marking on outgoing  
Real-time Transport Protocol (RTP) streams. The system sets the DiffServ  
Control Point (DSCP) to expedited forwarding (EF), which is a widely  
supported indicator for QoS-enabled networks carrying real-time audio and  
video data. Network routers that are QoS-enabled examine the type of service  
bits in the IP header and provide priority (with respect to routing and handling)  
to those packets marked with expedited forwarding. In addition to marking  
packets, MAS uses high resolution, interrupt-driven timers to drive RTP  
packetization at precise intervals.  
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MAS commissioning  
MAS uses flow specifications for each codec to identify packet delivery  
characteristics to the operating system, enabling it to prioritize (internally)  
packets destined to and from the network interface card (NIC). The framework  
ensures that QoS marked packets sent from MAS media processors are not  
dropped or delayed in their delivery to the wire. MAS can reserve a  
percentage of NIC bandwidth for its media processors. This ensures that  
management and signaling does not affect the quality of the audio or video  
streams in use on the platform. Use of flow specifications also offers some  
denial of service protection as the transport layers discard packets (instead of  
attempting to process them) that do not conform to the flow specification.  
MAS contains the Telchemy VQMON agent for QoS monitoring and RTCP-XR  
support. R-Factor, jitter, and packet loss are continually monitored for each  
call. Calls that fall below a configured R-Factor threshold are logged. All QoS  
statistics are archived with session detail records for analysis.  
To configure QoS, use the Nortel MAS Console. You can configure the  
following QoS properties.  
QoS properties  
Property  
QOS Maximum Bandwidth Per The QoS maximum bandwidth for H.263 video flow  
H.263 Video Flow (Bytes) in bytes. The default is 300 kbytes.  
QOS Maximum Bandwidth Per The QoS maximum bandwidth for NNVC video  
Description  
NNVC Video Flow (Bytes)  
flow in bytes. The default is 300 kbytes.  
QOS Monitoring  
Enable or disable QoS monitoring and reporting.  
QOS Monitoring Critical R  
Threshold (%)  
The R-Factor threshold, which generates a critical  
alert when the threshold is crossed. The default  
value is 70%.  
QOS Monitoring Warning R  
Threshold (%)  
The R-Factor threshold, which generates a  
warning alert when the threshold is crossed. The  
default is 80%.  
QOS Monitoring Maximum  
Alerts  
The maximum number of alerts that can be  
generated during a particular interval (QoS  
Monitoring Alert Interval). This property reduces  
network traffic. The default value is 100.  
QOS Monitoring Alert Interval The minimum time between QoS alert monitoring  
(sec)  
(the alert refresh interval). The default value is 60  
seconds.  
QOS Monitoring Refresh  
Interval (sec)  
The minimum time between QoS statistic  
reporting. The default is 15 seconds. Nortel  
recommends that you do not modify this property.  
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MAS commissioning  
Continuous streaming  
The MAS platform supports continuous streaming of pretranscoded real-time  
audio that applications can use to facilitate a radio broadcast effect. With this  
feature, applications can give sessions music-on-hold streaming or connect  
the sessions to Internet-streaming radio servers. Multiple sessions can listen  
to the same real-time audio stream without the cost of transcoding the stream  
on each session or connecting each session to a remote server.  
The MAS platform can stream from the following providers: Directory or RSS.  
The following sections describe these providers in detail.  
To adjust the continuous stream volume, use the Nortel MAS Console to edit  
the Continuous Streaming Volume Adjustment (dB) property (specify the  
value in decibels [dB]).  
Directory provider  
With the directory provider, files in a local directory can be transcoded,  
cached, and played indefinitely in alphabetic order. Continuous playback is  
achieved by repeating the sequence. The platform monitors the directory and  
detects any changes made for dynamic updates.  
To configure the Directory Provider you must create a directory inside  
%BASEDIR%\platdata\StreamSource\ChannelRoot. This directory name is  
the channel name that the application specifies and is used to stream from this  
source. Nortel recommends that you place all audio files in this directory.  
RSS provider  
The RSS provider can retrieve and parse Real Simple Syndication (RSS)  
documents. The RSS provider downloads the contents of these documents so  
the directory provider can play them. The RSS provider supports the following  
features:  
automatic RSS feed synchronization —to automatically add and remove  
content  
time-to-live attribute—to update content  
fault tolerance—to preserve local files until files are safely downloaded  
MP3 and WAV content types  
RSS is a dialect of Extensible Markup Language (XML) and the platform  
currently supports RSS 2.0. For more information, see the RSS 2.0  
specification document at www.rss-specification.com.  
The platform is currently limited to RSS documents that are no larger than  
260 kbytes. The following illustration shows a sample RSS 2.0 document.  
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MAS commissioning  
RSS 2.0 sample document  
To enable the RSS provider, you must configure the URL of the RSS  
document. This document is fetched when you start the MAS platform or  
change the URL. The RSS provider automatically adds or deletes content  
when you change the URL. To configure the URL, use the Nortel MAS  
Console.  
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MAS administration and security  
This chapter describes the administration tasks and security tools associated  
with MAS operation and management.  
Navigation  
Access security setup  
Administrative access to the MAS is obtained using the Microsoft Remote  
Desktop Connection Client. This client is based on the Remote Desktop  
Protocol (RDP), which provides access over separate virtual channels.  
For the purposes of enhanced security, management access control is  
restricted to a limited number of authorized IP addresses. The number of  
authorized IP addresses must be less than or equal to the number of network  
administrators.  
A timeout feature, set to a default value of 15 minutes, is used to disconnect  
idle connections. In addition, management ports that receive three  
consecutive failed login attempts are made unavailable for at least 60  
seconds, and network connected management ports drop a connection or  
session that becomes disconnected for any reason, within 15 seconds.  
RDP is separated from other traffic through the use of a virtual local area  
network (VLAN). A VLAN is added through the Broadcom Advanced Control  
Suite and a virtual adapter is created for each VLAN added.  
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MAS administration and security  
User accounts  
This section introduces the concept of multiple users and user roles. To  
accommodate customers who wish to use the shared account methodology,  
support for the use of the shared administrator account is provided.  
When a user is added to the system, it is defined as filling one of these user  
roles assumes the ability to perform the administrative functions associated  
with that role.  
Individual user accounts provides full accountability and monitoring of  
individual user actions on the system. User accounts are managed on an  
individual basis for each server; it is the responsibility of the customer to  
create each individual user account and to ensure that identical users are  
created on each server within the MAS environment.  
Each individual user account has a password that is processed through the  
password complexity profile and can be enabled or disabled by a Security  
System Administrator as required.  
To maintain the accountability with individual users for the security of their  
account, each individual user should be knowledgeable of only their own  
password and not of the passwords of other users.  
The following user roles (Windows User Groups) are identified with the MAS  
system:  
System Security Administrator (SSA)  
The System Security Administrator is ultimately responsible for the complete  
range of system administration functions, as follows:  
Maintaining Operating System configuration.  
Maintaining hardware and network configuration.  
Maintaining security policy configuration.  
Performing user management functions such as add, delete, or modify  
accounts.  
Performing certificate management functions.  
Installing and upgrading MAS platform and application software.  
Performing any task or operation within the MAS Console.  
Security Auditor (SA)  
The Security Auditor (SA) monitors security related events on the MAS  
system, and manages the security log files, including viewing the security log  
files and creating backup archives of the security logs.  
The Security Auditor does not have permission to run the MAS Console.  
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MAS administration and security  
Application Administrator (AA)  
The Application Administrator (AA) performs administrative functions that  
relate to the operation of applications on the MAS system, and can perform all  
operations within the MAS Console. The Application Administrator can install  
MAS software patches, but cannot access Event Viewer Security Logs.  
Logon banners  
A logon banner is a message screen that is displayed to users before a logon  
to the system is attempted.  
The logon banner does the following:  
informs users that they are logging onto a secure and private system, and  
warns unauthorized users that unless they are authorized they should not  
proceed.  
warns both authorized and unauthorized users that they are subject to  
monitoring to detect unauthorized use.  
A logon banner can be displayed to users before the login screen for the MAS  
platform is displayed. Using a logon banner is optional. The banner title and  
text values can be configured to display information for the system. The logon  
banner is configured with default values when system is installed. After  
installation, the customer is responsible for modifying the logon banner  
settings if the default banner is not sufficient for their system.  
Remote Desktop Protocol  
Existing administrative access to the MAS is accomplished using the  
Microsoft Remote Desktop Connection Client. This client is based on the  
Remote Desktop Protocol (RDP) that provides for separate virtual channels.  
IPSEC policy (with preshared key) is used to secure RDP. The RDP feature  
for MAS 6.0 for AS 5300 continues to leverage IPSEC policy, however  
replaces the preshared key with a TLS certificate (PKCS-12 format).  
The following requirements apply to the MAS 6.0 for AS 5300 release:  
Management access control is restricted to a limited number of  
authorized IP addresses. The number of IP addresses must be equal to  
or less than the number of network administrators. A valid username and  
password is required for access to the MAS.  
A timeout feature, set to 15 minutes, is used to disconnect idle  
connections.  
Management ports that receive three consecutive failed logon attempts  
are unavailable for at least 60 seconds (port 3389 for RDP).  
Network connected management ports drop a connection or session that  
is interrupted for any reason within 15 seconds.  
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MAS administration and security  
RDP is separated from other traffic by using a virtual local area network  
(VLAN). A VLAN is added through the Broadcom Advanced Control Suite.  
A virtual adapter is created for each VLAN added. The VLAN for RDP is  
identified as the Management VLAN. The VLAN for all other network traffic  
is identified as the Service VLAN.  
The only protocol assigned to the Mgmt VLAN in this release is RDP.  
Only accept RDP connections on the Mgmt VLAN  
IPSEC configuration  
IPSec is used to encrypt and authenticate communications between servers.  
Each IPSec policy is made for both the source IP and for the destination.  
There are three IPSec encryption algorithms available:  
DES (56bit key)  
AES (128bit key)  
3DES (168bit key)  
IPSec can be used to protect communications with servers outside of the  
trusted system.  
For detailed information about configuring IPSec, see Media Application  
Server 6.0 for AS 5300 Commissioning (NN44470-301).  
Security tools  
This section details the security tools included with the MAS 6.0 for AS 5300  
platform install. To preserve system security and file integrity, Nortel  
recommends that the security tools are run continuously or periodically by the  
onsite System Administrator to monitor potential security breaches.  
Virus Protection using McAfee VirusScan Enterprise Edition 8.5  
The virus protection software must be installed and configured to run  
automatically on a weekly basis on every server. The McAfee VirusScan  
Command Line Scanner software is included with the OS during installation  
and comes preconfigured to run a scheduled scan once per week and to scan  
the entire file system (excluding configured system directories) for potential  
problems due to viruses.  
When a virus scan is completed, the status is reported to the system log. Any  
problems found are logged as critical in the system log and full details of the  
error are then placed in the security log. Any files with suspected virus  
infection are moved to a configured quarantine location. It is the responsibility  
of a System Security Administrator to remove these files manually.  
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MAS administration and security  
The default scheduled time for a scan to run is on Sundays at 4:22 AM. A  
script is provided to allow the configuration of a different day and time for when  
the scan is executed, or to disable automatic scanning entirely if this is  
desired. Scanning the entire file system (excluding configured system  
directories) takes at least 20 minutes under no load. This should be taken into  
account when determining the day and time when the scanner is to be run.  
Retrieving the latest virus definition files from McAfee and manually loading  
them on the system is the responsibility of the onsite System Security  
Administrator.  
File system integrity and the fcheck tool  
The file system integrity security tool allows an System Security Administrator  
create a baseline of cryptographic hashes for a subset of files on the file  
system. Once a baseline is created, future baselines can then be compared  
against previous baselines to give the System Security Administrator an  
indication of what files have changed on the system since the last time the tool  
was run. Depending on which files were changed, added, or deleted since the  
last baseline was taken, the System Security Administrator can determine  
whether or not a security breach has occurred.  
The file system integrity tool fcheck is the baselining tool used in this process,  
and is included with the OS installation. The fcheck tool must be run manually  
by an onsite System Security Administrator and must not be scheduled to run  
automatically by the system. The System Security Administrator must  
determine how frequently (weekly, for example) and under what conditions a  
baseline should be taken.  
The purpose of the file security integrity tool is to track files that should not  
change very often. The tool allows a list of excluded directories and files to be  
used.  
Usage instructions and documentation are included in the default directory  
location (C:\fcheck).  
Certificate management  
MAS 6.0 for AS 5300 uses the X.509 certificate type, that contains the public  
key for a server and a signature from the certification authority (CA). A  
certification authority is a trusted entity that issues, renews, and revokes  
certificates.  
A server uses a certificate to identify itself. A TLS or SSL connection or an  
IPSec channel between two servers is established after two servers exchange  
certificates and authentication is completed when the certificates are verified.  
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MAS administration and security  
To create and install a valid certificate, you must do the following:  
Generate a public and private key pair.  
Generate a Certificate Signing Request (CSR).  
Send CSR to CA to request the certificate.  
Transfer CA-signed certificate to the MAS using SFTP.  
Install the certificate using the MAS Console.  
A certificate may also be revoked by the CA. A Certificate Revocation List  
(CRL) must be obtained from the CA and installed on the server. When a new  
CRL is available from the CA, the previously installed CRL on the server is  
replaced.  
The CRL is obtained from the CA using a secure method.  
The CRL is installed in a designated location on the server.  
Service and configuration data backup  
The following sections define configuration data and application data.  
Configuration data  
Configuration data is the system configuration data that includes all the  
configuration parameters. You can use the Nortel MAS Console to view the  
configuration parameters.  
Service data  
Application data is the user data that resides on disk in the managed storage  
area of the Content Store.  
Automatic and manual backups  
This section explains the backup and restore capabilities on the MAS  
platform. To back up and restore configuration and service data, you can use  
the Nortel MAS Console.  
You can use the automatic backup task menu to create regularly scheduled  
backups to run, for example, daily, weekly, and biweekly. You can configure the  
local destination directory using the properties panel. In the automatic backup  
task menu, you can transfer the archive to a remote server through the File  
Transfer Protocol (FTP). You can use the properties panel to access the FTP  
host, user name, password, destination path, and the option to delete the local  
file after transfer.  
The following sections explain backup and restore functions for configuration  
data and service data.  
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MAS administration and security  
Backup of configuration data  
You can back up configuration data while the system is online, but the MAS  
must be offline before you can perform a restore operation.  
The configuration data backup file contains the following files:  
an SQL database dump that contains data from the system configuration-  
related database  
a text file that contains metadata for the load  
a text file that contains metadata for the schema versions  
Restrictions  
The backup zip file contains metadata that defines the complete load version,  
for example, 5.0.193. You can perform restore operations only if the load  
version metadata in the backup file is identical to the running load version.  
Attention: You must create a backup file after any installation or upgrade to  
ensure a compatible backup is available for restoration. If you do not create  
a backup file, you cannot restore the currently running version.  
Service data (Content Store data)  
You can back up service data while the system is online, but the MAS must be  
offline before you can perform a restore operation.  
The service data backup file contains the following files:  
an SQL database dump that contains data from the Content Store-related  
database  
a zip file of all files on disk in the managed storage area of the Content  
Store  
a text file containing the metadata for the load  
a text file containing the schema versions  
Restrictions  
The backup zip file contains metadata that defines the complete load version,  
for example, 5.0.193. You can perform restore operations only if the major load  
version in the backup file matches the running major load version. Minor  
version, load build number, and schema version are not considered.  
Attention: You must create a backup file after any installation or upgrade to  
ensure a compatible backup is available for restoration. However, unlike  
configuration data, you can perform a restoration from a noncompatible  
backup file only if you perform an upgrade from a previous release or the  
major load version is 5, for example MAS 1.0.193.  
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MAS administration and security  
System maintenance  
It is good practice to perform routine maintenance tasks to avoid problems that  
can affect server performance or cause the server to fail. The MAS platform  
includes a number of useful tools and indicators to help you monitor your  
server performance quickly and easily. With these tools, you can perform  
regular maintenance routines.  
Event logs  
To ensure you are aware of service-affecting events so that you can take  
appropriate action, check your event logs daily. Investigate any unusual  
alarms or events, changes in alarm patterns, or inordinate alarm volumes.  
Backups  
To protect your site against data loss, maintain up-to-date backups. Ensure  
you have a full system backup scheduled at regular intervals, even on systems  
equipped with Redundant Array of Independent Disks (RAID). A full system  
backup is critical to prevent data loss if a system failure occurs, such as a disk  
drive failure or data corruption. Nortel also recommends that you perform a full  
system backup before you upgrade or install new software. You can schedule  
backups to run online while the system is still in service; however, Nortel  
recommends that you schedule backups for off-peak hours.  
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MAS performance management  
Performance management includes report generation and Operational  
Measurements. For detailed information about MAS performance  
management, see Media Application Server 6.0 for AS 5300 Performance  
Management (NN44470-701).  
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MAS fault management  
This chapter describes fault management on the MAS platform. For step-by-  
step information, see Media Application Server 6.0 for AS 5300  
Troubleshooting and Fault Management (NN44470-700).  
Navigation  
Fault management architecture  
This section describes the fault management architecture.  
Polling management data  
The MAS supports the polled management model of the Simple Network  
Management Protocol (SNMP) to facilitate well-controlled network  
management traffic and to enable reliable data synchronization through a  
request-response interaction. By maintaining Management Information Base  
(MIB) tables and variables, the Internet Protocol (IP) Multimedia System (IMS)  
enables the following functions:  
To recover the missing data due to lost notifications. This is referred to as  
auditing and is described in the next section.  
To perform initial data synchronization for the active alarm list.  
To monitor the status of operation, administration, and maintenance  
(OAM) communications with the agents and resynchronize all data after  
recovering from communication loss.  
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MAS fault management  
Auditing  
Auditing includes regular auditing and data auditing. With regular auditing, you  
can use the SNMP agent to poll the value of the following MIB variables:  
sysUpTime (1.3.6.1.4.1.562.29.1.1.3)  
currentTxNotificationSequenceNum (1.3.6.1.4.1.562.29.1.6.1)  
Active alarm status  
A management application can determine the latest alarm for a particular  
network element. When the network element instance restarts, the value is  
reset to zero.  
SNMP management  
The MAS platform provides SNMP management. SNMP management  
supports outgoing traps for logs and alarms to remote SNMP-based Network  
Management Stations (NMS). In addition, NMS can query alarm table and  
audit services. Use the Nortel MAS Console to activate the Windows SNMP  
service and configure system parameters.  
Traps  
Traps use the Nortel Reliable MIB format to support active and cleared alarm  
notifications as well as informational log messages. To enable or disable  
alarm-related traps and information log traps, use the Nortel MAS Console.  
MAS SNMP agent  
The MAS SNMP agent supports queries on the ActiveAlarm table and audits  
for resynchronization with the management server. These queries can be in  
the form of Get requests on specific fields or GetNext requests for table  
traversal.  
SNMPv1/v2  
SNMPv1/v2 uses community names to authenticate messages. The  
community name is like a password shared by the SNMP NMS and the MAS  
SNMP agent. The community name must be the same value on both the NMS  
and the MAS SNMP agent.  
Supported MIBs  
Nortel supports the following MIBs. You must load MIBs in the following order:  
1
2
3
4
5
nortel.mib  
nortelGenericMIBs-smi2.mib  
nortelNMItextConv-smi2.mib  
nortelNMIconfigMgmt-smi2.mib  
nortelNMIconformance-smi2.mib  
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MAS fault management  
6
7
8
9
nortelNMImibGroups-smi2.mib  
nortelNMIresourceMgmt-smi2.mib  
nortelNMInotifications-smi2.mib  
nortelNMIneInventory-smi2.mib  
10 nortelNMIconfigNoti-smi2.mib  
11 nortelNMIfaultMgmt-smi2.mib  
12 nortelNMIfaultNoti-smi2.mib  
13 nortelNMIalarmSurv-smi2.mib  
14 nortelNMIstateInfo-smi2.mib  
15 nortelNMIappComplianceIndications-smi2.mib  
16 nortelNMIappRequirements-smi2.mib  
17 nortelCSMOAappRequirements-smi2.mib  
18 nortelCSMOAappComplianceIndications-smi2.mib  
Syslog  
Syslog is a standard for forwarding log messages in an IP network. The MAS  
platform optionally supports syslog over User Datagram Protocol (UDP) for  
the delivery of logs and alarm history to one or more syslog server  
destinations.  
To enable or disable syslog delivery, use the Delivery of SYSLOG property  
(found in the Nortel MAS Console). To configure one or more syslog server  
destinations, use the SYSLOG Destination Server List property (found in the  
Nortel MAS Console). You can enter the syslog server host name or IP  
address; separate each entry with a semicolon.  
Event logs  
Event logs provide a historical view of events that occur on the system. Event  
logs are delivered to all configured destinations, which may include the MAS  
management console, syslog destinations, SNMP destinations, and the local  
Microsoft Event Viewer. The system automatically archives and rotates the  
logs as needed.  
Every log is assigned one of the following severities: Error, Warning, or  
Informational. Errors are the most severe and provide further details on alarm  
conditions. Warnings are less severe and are generated for events such as  
raising or clearing an alarm. Informational logs are the least severe and  
provide indication of processing, such as new connections initialized for each  
component during startup.  
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MAS fault management  
You can configure logs to syslog destinations and to be sent as SNMP traps  
when generated.  
To view event logs, use the Nortel MAS Console. The following table describes  
the information that you can view in each event log.  
Field  
Description  
Type  
Event log severity. (Error, Warning, or  
Informational). In addition, a colored icon  
represents the log type. Red indicates Error, yellow  
indicates Warning, and white indicates  
Informational.  
Timestamp  
Timestamp of when the event was logged. You can  
configure the timestamp to display as either local  
time or Coordinated Universal Time (UTC) time.  
UTC time is useful for correlating logs with events  
in other time zones.  
Id  
Identifier assigned to the event log.  
A description of the event log.  
Description  
Source  
The platform component that generated the log.  
Security Logs  
Security logs provide Security Administrators and Auditors the ability to track  
critical operations of the system and to analyze historical data should a  
security breach occur. Security logs are viewed using the Event Viewer  
Administrative tool.  
Security logs are archived using the Save Log File As... popup menu option in  
the Event Viewer. It is the responsibility of onsite personnel to transfer these  
files off of the system if a backup of the security logs is required.  
Access to security logs is restricted to either SSA or SA users.  
The following parameters are set during installation:  
MaximumLogSize = 81920 KB  
AuditLogRetentionPeriod = 2  
Windows OS Security Logs  
All system events such as logins, file access, file handling, and network  
access are all tracked using various Windows operating system services.  
The rules that govern these logs are factory configured and installed on  
the server during installation.  
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MAS fault management  
At a minimum, the following are monitored and logged by the OS:  
User authentication attempts  
Unauthorized attempts to access resources (files or programs on the  
server, for example)  
User login attempts (both successes and failures)  
Changes made to a user security profile or to user attributes  
Disabling and enabling of a user profile  
Changes made to security profile or attributes associated with a channel  
or port  
Changes made to access rights associated with resources  
Changes made in the security configuration  
MAS Console security logs  
The MAS Console generates security logs for the following operations:  
Software stops, starts, and restarts  
Operational state changes (lock, pending-lock, or lock) for platform or  
applications  
Changes made to configuration data  
Backups and Restores (system or service data)  
Active sessions control (mute, un-mute, and delete)  
Generate Report (control panel)  
A critical event viewer application log is generated if the console is unable to  
write to a security log. The contents of the log are as follows:  
Description  
Date and Time  
User ID  
Type of Operation (for example, stops, starts, or configuration data  
changes)  
Source (client) IP address  
Success and Failure of operations  
Alarms  
When a serious error is detected and corrective action is required, the MAS  
platform generates an alarm. Alarms generate an event log each time an  
alarm is raised or cleared and this provides a clear record of all state changes  
on the platform.  
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MAS fault management  
Every alarm is assigned one of the following severities:  
Critical  
Major  
Minor  
Warning  
Optionally, you can configure alarms to be sent as SNMP traps when alarms  
are raised or cleared, which is described in SNMP management (page 36). A  
network management station can use SNMP to poll the platform to determine  
which alarms are active.  
To view active alarms, use the Nortel MAS Console. The following table  
describes the information that you can view for each alarm.  
Field  
Description  
Alarm ID  
A globally unique identifier assigned to the alarm. In addition a  
colored icon represents the alarm severity. Red indicates Critical  
and yellow represents all other alarms.  
Name  
Descriptive text associated with the alarm.  
Severity  
The severity of the alarm, which can be one of the following (listed  
from most to least severe): Critical, Major, Minor, and Warning.  
Timestamp  
Timestamp of when the alarm was raised. You can configure  
timestamps to display as either local time or UTC time. UTC time  
is useful for correlating alarms with events in other time zones.  
(1 of 2)  
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MAS fault management  
Field  
Description  
Type  
Alarm type. The following is a list of alarm types:  
GENERIC  
ATTRCHANGE  
COMMALARM  
ENVIRONALARM  
EQUIPALARM  
INTEGRITYVIOLATION  
OBJCREATION  
OBJDELETION  
OPERATIONALVIOLATION  
PHYSICALVIOLATION  
PROCESSINGERROR  
QOSALARM  
QOSALARM  
RELATIONCHANGE  
SECURITYVIOLATION  
STATECHANGE  
TIMEDOMAINVIOLATION  
Probable Cause A description of what probably caused this alarm to be raised.  
Corrective  
Action  
Suggested corrective action to resolve this error.  
(2 of 2)  
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Nortel MAS Console  
This chapter describes the Nortel MAS Console application. You can use the  
Nortel MAS Console to manage, monitor, and configure the MAS platform.  
The Nortel MAS Console is a Microsoft Management Console (MMC) snap-in  
and is installed with the platform. To access the Nortel MAS Console, you  
must use a Remote Desktop Connection. The Nortel MAS Console provides  
nodal access only. Alternatively, you can use the Remote Console to  
configure, manage, and monitor multiple MASs from a user desktop.  
Navigation  
Counters & Gauges  
You can complete the following tasks in the Counters & Gauges view.  
create a new counter set  
view current activity  
view log data  
view graph  
view histogram  
view report  
add counters  
view system monitor properties  
freeze display  
update data  
For more information about Counters and Gauges, see Media Application  
Server 6.0 for AS 5300 Performance Management (NN44470-701). For  
detailed information about using the Counters & Gauges view, see the online  
Help that is available with this view.  
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Nortel MAS Console  
Nortel MAS Console  
You can view or configure the following items in the Nortel MAS Console view  
of the Nortel MAS Console application.  
Command  
Description  
Active Sessions  
Use the Active Sessions command to view active sessions. You  
cannot configure active sessions.  
Log Viewer  
Statistics  
Use the Log Viewer command to view all system logs. You  
cannot configure system logs.  
Use the Statistics command to view system statistics. You can  
configure system statistics.  
For more information about configuration, see Media Application  
Server 6.0 for AS 5300 Performance Management  
(NN44450-701).  
Configuration  
Use the Configuration command to access the following  
sections:  
For more information about configuration, see Media Application  
Server 6.0 for AS 5300 Commissioning (NN44470-301).  
Alarms  
Use the Alarms command to view active alarms. You cannot  
configure active alarms.  
Control Panel  
Use the Control Panel command to perform administrative type  
of operations.  
IP Interfaces  
Use the IP Interfaces menu option to configure general settings for the MAS  
platform, for example, IP address and node name.  
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Nortel MAS Console  
Logging  
Use the Logging command to view and configure trace logs, the syslog, the  
Session Detail Record archive, and the Operational Measurement (OM)  
archive.  
Applications  
Use the Applications command to:  
view and modify installed packaged applications  
view and modify the operational state of packaged applications  
create, delete, view, and modify translations  
Attention: This release does not support custom applications.  
Licensing  
Use the Licensing command to configure license keys and servers.  
Signaling  
Use the Signaling command to view and configure SIP domains, SIP  
accounts, SIP trusted nodes, SIP routes, and general SIP settings.  
Attention: This release does not support MRCP.  
Media Settings  
Use the Media Settings command to configure media-related settings, such  
as audio codecs, video codecs, DTMF relay, streaming, conference settings,  
and QoS.  
Management  
Use the Management command to configure remote management (SNMP or  
SOAP) and users.  
Clustering  
Use the Clustering command to configure a cluster of MAS platform nodes.  
Reporter  
Use the Reporter command to configure report generation.  
Advanced Settings  
Use the Advanced Settings command to view and configure trace logging,  
media processing, network settings, and engineering parameters.  
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Nortel MAS Console  
Attention: Nortel recommends that you change advanced settings only if  
Nortel product development instructs you to do so.  
Dialog boxes  
This section describes the following dialog boxes:  
Configuration properties  
properties for:  
Logging  
Licensing  
SIP General Settings  
Media Settings  
Management General Settings  
Clustering  
Reporter  
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Nortel MAS Console  
Configuration Properties dialog box  
The following table describes the Configuration Properties dialog box fields  
and buttons.  
Field  
Description  
Key  
This is a read-only field. It is the configuration  
parameter name.  
Description  
This is a read-only field. It provides a description of  
the selected configuration item.  
Restart required  
This is a read-only field. It indicates whether a  
restart is required if you modify the properties for  
this configuration item. Values are Yes and No.  
Yes indicates a platform restart is required for the  
configuration change to take effect.  
Value  
The Value field represents the current value of the  
configuration parameter.  
Restore Default  
Click Restore Default to restore the configuration to  
the factory default value.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Apply  
Click Apply to save property changes.  
Translation properties  
The following figure shows an example of a Translation Properties dialog box.  
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Nortel MAS Console  
Translation Properties dialog box  
The following table describes the Translation Properties dialog box fields and  
buttons.  
Field  
Description  
Application Name  
After you create and save a translation, this field is  
read-only.  
Mode  
The mode applied to the algorithm. You can select  
one of the following modes:  
None  
SIP Request URI  
Called DN  
Calling DN  
SIP Request URI User  
SIP To  
SIP From  
(1 of 2)  
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Nortel MAS Console  
Field  
Description  
Algorithm  
The algorithm is used to determine if there is a  
match between the translation and the SIP  
request.You can select one of the following  
algorithms:  
None  
Substring Match  
Regular Expression  
Exact Match  
Case Insensitive Match  
Hash  
Dial Plan Notation  
Pattern  
Rank  
Regular expression that is used when the  
application determines if the algorithm finds a  
match.  
The order in which to apply translations if multiple  
translations match. If translations have the same  
rank, the translations are selected in the order that  
it is defined.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Apply  
Click Apply to save property changes.  
(2 of 2)  
SIP domain properties  
The following figure shows an example of a SIP Domain Properties dialog box.  
SIP Domain Properties dialog box  
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Nortel MAS Console  
The following table describes the SIP Domain Properties dialog box fields and  
buttons.  
Field  
Description  
Edit Domain Name  
Type the new SIP domain name.  
Click OK to close the dialog box.  
OK  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Apply  
Click Apply to save property changes.  
SIP account properties  
The following figure shows an example of a SIP Account Properties dialog  
box.  
SIP Account Properties dialog box  
The following table describes the SIP Account Properties dialog box fields and  
buttons.  
Field  
Description  
Name  
Password  
Domain  
OK  
Type the new SIP account name.  
Type the new password  
Select a SIP domain for this SIP account.  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Apply  
Click Apply to save property changes.  
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Nortel MAS Console  
SIP Trusted Nodes properties  
The following figure shows an example of a SIP Trusted Nodes Properties  
dialog box.  
SIP Trusted Nodes Properties dialog box  
The following table describes the SIP Trusted Nodes Properties dialog box  
fields and buttons.  
Field  
Description  
Host or IP  
Type the host name or IP address for the trusted  
node.  
Attention: If you use a host name, you must use  
a Domain Name System (DNS) server to resolve it.  
Restart Required  
This is a read-only field. It indicates whether a  
restart of the server is required if you modify the  
trusted node host name or IP address. Values are  
Yes and No. Yes indicates a platform restart is  
required for the configuration change to take effect.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Apply  
Click Apply to save property changes.  
SIP route properties  
The following figure shows an example of a Modify SIP Route dialog box.  
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Modify SIP Route dialog box  
The following table describes the Modify SIP Route dialog box fields and  
buttons.  
Field  
Description  
Domain  
Select the domain to associate with this SIP route.  
If no route is configured for a domain, routes  
associated with the wildcard domain are used.  
Trusted Node  
Transport  
Select the trusted node to associate with this route.  
Select the one of the following SIP transports:  
UDP, TCP, or TLS.  
Attention: TLS is not supported.  
Remote Port  
Priority  
Type the remote port on which the route is  
accepting SIP requests.  
Priority values with a range of 0 – 65535. The  
lowest value is the highest priority. The default  
priority is 0.  
Weight  
Role(s)  
Enabled  
Priority values range from 0 – 65535. The default  
priority is 10.  
Select the roles that this SIP route performs. You  
can select Proxy and Registrar.  
Select the Enabled check box to enable or disable  
a selected route. Typically routes are enabled, but  
you can disable a route to remove it temporarily  
without reconfiguring the system.  
(1 of 2)  
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Field  
Description  
Restart Required  
This is a read-only field. It indicates whether a  
restart of the server is required if you modify the  
trusted node host name or IP address. Values are  
Yes and No.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
(2 of 2)  
Audio codec configuration  
The following figure shows an example of an Audio Codec Configuration  
Dialog box.  
Audio Codec Configuration dialog box  
The following table describes the Audio Codec Configuration dialog box fields  
and buttons.  
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Field  
Description  
Supported Audio Codecs  
The following audio codecs are supported: G.711-  
ULAW, G.711-ALAW, EVRC-0, and G.729A. To  
enable an audio codec, from the Available list,  
select an audio codec, and then click the right  
arrow. Use the left arrow to remove an audio  
codec.  
Add  
Click Add to enable an audio codec. From the  
Available list, select an audio codec, and then click  
Add.  
Add All  
Remove  
Click Add to enable all audio codecs. From the  
Available list, select an audio codec, and then click  
Add All.  
Click Remove to disable an audio codec. From the  
Enable list, select an audio codec, and then click  
Remove.  
ptimes  
Select the packet times (ptimes) to enable for each  
enabled audio codec.  
Default  
Select the default packet time for each enabled  
audio codec.  
Restart Required  
This is a read-only field. It indicates whether a  
restart of the server is required if you modify the  
trusted node host name or IP address. Values are  
Yes and No. Yes indicates a platform restart is  
required for the configuration change to take effect.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Video codec configuration  
The following figure shows an example of a Video Codec Configuration dialog  
box.  
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Video Codec Configuration dialog box  
The following table describes the Video Codec Configuration dialog box fields  
and buttons.  
Field  
Description  
Supported Audio Codecs  
Lists the following supported video codecs that you  
can enable or disable: H.263 and NNVC.  
Add  
Click Add to enable a video codec. From the  
Available list, select a video codec, and then click  
Add.  
Add All  
Remove  
Remove All  
Click Add to enable all video codecs. From the  
Available list, select a video codec, and then click  
Add All.  
Click Remove to disable a video codec. From the  
Enable list, select a video codec, and then click  
Remove.  
Click Remove All to disable all video codecs. From  
the Enable list, select a video codec, and then click  
Remove All.  
Up and Down  
Use the Up and Down buttons to change the order  
of the enabled video codecs.  
Allowed Frame Rates  
Select the frame rates for each enabled video  
codec.  
(1 of 2)  
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Field  
Description  
Default Rates  
Select the default frame rate for each enabled  
video codec.  
Preferred Format  
Annex Profile  
Select the preferred format for each enabled video  
codec.  
Select the annex profile for each enabled video  
codec.  
Restart Required  
This is a read-only field. It indicates whether a  
restart of the server is required if you modify the  
trusted node host name or IP address. Values are  
Yes and No. Yes indicates a platform restart is  
required for the configuration change to take effect.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
(2 of 2)  
Digit relay configuration  
The following figure shows an example of a Configure Digit Relay dialog box.  
Configure Digit Relay dialog box  
The following table describes the Configure Digit Relay dialog box fields and  
buttons.  
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Field  
Description  
Supported Digital Relay  
Methods  
You can enable or disable the following supported  
digital relay methods: INFO Digits and RFC2833.  
Attention: Nortel recommends that you do not  
disable all methods. If you disable all methods,  
inband DTMF detection is enforced and system  
capacity degrades.  
Add  
Click Add to enable a digital relay method. From  
the Available list, select a digital relay method, and  
then click Add.  
Add All  
Click Add All to enable all digital relay methods.  
From the Available list, select a digital relay  
method, and then click Add All.  
Remove  
Remove All  
Up and Down  
Click Remove to disable a digital relay method.  
From the Enable list, select a digital relay method,  
and then click Remove.  
Click Remove All to disable all digital relay  
methods. From the Enable list, select a digital relay  
method, and then click Remove All.  
Use the Up and Down buttons to change the order  
of the enabled digital relay methods.  
Assign RFC 2833 Payload  
Type Dynamically  
This check box is selected by default. Nortel  
recommends that RFC 2833 payload type is  
assigned dynamically. However, some clients  
require a fixed payload type.  
Specify Type  
If you require a fixed payload type, clear the Assign  
RFC 2833 Payload Type Dynamically check box,  
and then in the Specify Type box, type the payload  
type.  
Restart Required  
This is a read-only field. It indicates whether a  
restart of the server is required if you modify the  
trusted node host name or IP address. Values are  
Yes and No. Yes indicates a platform restart is  
required for the configuration change to take effect.  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Users properties  
The following figure shows an example of a Users Properties dialog box.  
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User Properties dialog box  
The following table describes the User Properties dialog box fields and  
buttons.  
Field  
Description  
Key  
This is a read-only field.  
Description  
This is a read-only field. It provides a description  
for the selected configuration item.  
Restart required  
Enable Account  
This is a read-only field. It indicates whether a  
restart is required if you modify the properties of  
this configuration item. Values are Yes and No.  
Yes indicates a platform restart is required for the  
configuration change to take effect.  
Select the Enable Account check box to modify the  
user name and password fields or reset the  
password.  
User name and Password  
Enter the user name and password in these fields.  
Use to reset the password.  
Reset Password  
OK  
Click OK to close the dialog box.  
Cancel  
Click Cancel to close the dialog box without saving  
changes.  
Apply  
Click Apply to save property changes.  
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NN44470-100 01.01 Standard  
Release 6.0 03 June 2008  
Copyright © 2008, Nortel Networks  
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Terminology  
A
digest access authentication  
A method which web page can use to establish user identity (using the  
Hypertext Transfer Protocol) without having to send a password in plaintext  
over the network.  
audio codec  
A computer program that compresses and decompresses digital audio data  
according to a given audio file format or streaming audio format.  
ASR  
automatic speech recognition  
The process of converting a speech signal to a sequence of words, by means  
of an algorithm implemented as a computer program.  
C
D
Call Control Extensible Markup Language  
An Extensible Markup Language (XML) standard designed to provide  
telephony support to VoiceXML. Informs the voice browser how to handle the  
telephony control of the voice channel. See also Voice Extensible Markup  
CCXML  
Differentiated Services  
A computer networking architecture that specifies a simple, scalable, and  
coarse-grained mechanism for classifying, managing network traffic, and  
providing Quality of Service (QoS) guarantees on IP networks.  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
NN44470-100 01.01 Standard  
Release 6.0 03 June 2008  
Copyright © 2008, Nortel Networks  
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Terminology  
Differentiated Services Code Point  
A field in an IP packet that enables different levels of service to be assigned  
to network traffic. This is achieved by marking each packet on the network with  
a DSCP code and assigning to it the corresponding level of service.  
DSCP  
DTMF  
dual-tone multi-frequency  
A system of signal tones used in telecommunications. Also known as touch-  
tone.  
M
Management Information Base  
A type of database used to manage the devices in a communications network.  
It comprises a collection of objects in a (virtual) database used to manage  
entities (such as routers and switches) in a network.  
MAS  
Media Application Server  
A media services platform that supports a diverse range of multimedia  
services and applications.  
MIB  
Media Server Link  
A proprietary network messaging protocol.  
MSLink  
R
RAID  
Real-time Transport Protocol  
A standardized packet format for delivering audio and video over the Internet.  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
NN44470-100 01.01 Standard  
Release 6.0 03 June 2008  
Copyright © 2008, Nortel Networks  
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- 60 -  
Terminology  
Redundant Array of Independent Disks  
A category of disk drives that employ two or more drives in combination for  
fault tolerance and performance. RAID disk drives are used frequently on  
servers.  
RTP  
S
SDP  
Session Description Protocol  
Session Description Protocol (SDP), is a format for describing streaming  
media initialization parameters. SDP is intended for describing multimedia  
sessions for the purposes of session announcement, session invitation, and  
other forms of multimedia session initiation.  
Session Information Protocol  
An application-layer control protocol that can establish, modify and terminate  
multimedia sessions or calls.  
Simple Network Management Protocol  
Used by network management systems to monitor network-attached devices  
for conditions that warrant administrative attention. Simple Network  
Management Protocol consists of a set of standards for network  
management, including an Application Layer protocol, a database schema,  
and a set of data objects  
Simple Network Time Protocol  
An Internet protocol used to synchronize computer clocks in the Internet.  
SIP  
SNMP  
SNTP  
T
Text-to-speech  
A text-to-speech (TTS) system converts normal language text into speech.  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
NN44470-100 01.01 Standard  
Release 6.0 03 June 2008  
Copyright © 2008, Nortel Networks  
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- 61 -  
Terminology  
TTS  
U
UDP  
Universal Resource Indicator  
A short string of characters that represent the address or location of  
resources, typically on the Internet, and how that resource should be  
accessed.  
URI  
User Datagram Protocol  
One of the core protocols of the Internet protocol suite. Using UDP, programs  
on networked computers can send short messages to one another  
V
video codec  
A computer program that compresses and decompresses digital video data  
according to a given video file format or streaming video format.  
VXML  
Voice Extensible Markup Language  
A standard XML format for specifying interactive voice dialogues between a  
human and a computer.  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
NN44470-100 01.01 Standard  
Release 6.0 03 June 2008  
Copyright © 2008, Nortel Networks  
Download from Www.Somanuals.com. All Manuals Search And Download.  
     
Download from Www.Somanuals.com. All Manuals Search And Download.  
Nortel Media Application Server 6.0 for AS 5300  
Fundamentals  
Copyright © 2008 Nortel Networks. All Rights Reserved.  
Sourced in Canada and the United States  
Publication: NN44470-100  
Document status: Standard  
Document issue: 01.01  
Document date: 03 June 2008  
Product release: Release 6.0  
Job function: Product Fundamentals  
Type: NTP  
Language type: English  
Nortel, the Nortel logo and the Globemark are trademarks of Nortel Networks.  
Microsoft Windows Server 2003, Microsoft Event Viewer, and Microsoft Management Console are  
trademarks of Microsoft Corporation.  
All other trademarks are the property of their respective owners.  
To provide feedback or report a problem with this document, go to www.nortel.com/documentfeedback.  
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