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Introduction
The Communication Server 1000 (CS 1000) and VoIP applications run on
a variety of platforms and offer various features depending on the platform:
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SMC, MC32S, MGC, Signaling Server: the four platforms on which
the Voice Media Gateway Card (VGMC) application runs. A different
binary file exists for each card because each card has a different CPU.
The same source code files are used to build all three binary files;
therefore, application functionality is the same on all platforms unless
system issues prevent it.
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The SMC card has 8 or 32 gateway ports. The MC32S has 32 gateway
ports. Throughout the document, whenever the channel number is
a CLI command parameter, the value range is 0 to 7 or 0 to 31 for
the SMC, and 0 to 31 for the MC32S and MGC. The DSP software
generates TCID in some printouts; TCID and the channel number are
numerically equivalent.
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The term VGMC describes the functionality of the SMC and MC32S
cards. In general, these cards are typically gateway cards and the
system uses DSP resources as gateways between the TDM and
packet domains. Using VGMC means the card can be an SMC, or an
MC32S card. If a feature is specific to one card, only the name of the
affected card is used.
Network sniffer
Note: There is a sniffer tool resident on Linux Targets. This tool is
called the Packet Capture Tool (PCAP). See “PCAP tools for Linux”
(page 471) for more details on this tool.
For network-related problems, a network sniffer helps to see which
packets are sent and received by the VGMC/Signaling Server on the
TLAN and ELAN interfaces. In many cases, using a sniffer is the only way
to determine the cause of an IP Phone registration, voice QoS, or other
network messaging problem. Nortel employees who support the IP Line
product need access to a sniffer and must understand its use.
Nortel Communication Server 1000
Troubleshooting Guide for Distributors
NN43001-730 02.02 31 December 2009
Copyright © 2008-2009 Nortel Networks. All Rights Reserved.
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