Monitoring 100Baset Link Voice Quality Of Service - Nortel Communication Server 1000E Maintenance Manual

Layer 2 and Layer 3 LAN connections
The MG 1000T platform supports only Layer 2 and Layer 3 switches.
Software routers are not recommended. To troubleshoot for Layer 2 and
Layer 3 LAN connection, follow the steps in
Layer 2 and Layer 3 LAN connections for MG 1000T" (page
Procedure 8
Troubleshooting Layer 2 and Layer 3 LAN connections for MG 1000T
Step
1
2
3
4
5
6

Monitoring 100BaseT link voice Quality of Service

Behavioral characteristics of the network are dependent on factors like
Round Trip Delay (RTD), queueing delay in the intermediate nodes, packet
loss, and available bandwidth.
The service level of each IP link is measured and maintained on the Call
Server for the operation of the MG 1000Es. Information for latency and
packet loss is collected from the hardware and processed. Based on
system-configured thresholds, the level of service is derived and reported
automatically or when the technician requests a report with the PRT QOS
Monitoring 100BaseT link voice Quality of Service 95
Action
Verify that the green Link LED on the daughterboard in the
MGCis on (this indicates that the physical connection is
functioning). If the Link LED is off, check the physical connection
by verifying that the daughterboard and cables are properly
installed.
Test the LAN connectivity between the Call server and the Layer
2/3 switch by pinging the IP address of the Layer 2/3 switch.
Perform the same test between the MG 1000E and the Layer
2/3 switch. Consult the local IS department for the appropriate
IP address.
To disable the link for testing, in LD 32, enter DISS <n> (where n
= IP daughterboard port#).
To test the signaling and voice path of the daughterboard, in
LD 135, enter LLBK <link #>. If the card fails the LLBK test,
replace the IP daughterboard.
In LD 117, enter PING <ip address of the MG 1000T
Expansion> to verify the network connection.
Re-enable any disabled components. Verify that the 100BaseT
connection between the MG 1000T Core and the MG 1000T
Expansion is operating by pinging the IP address of the MG
1000T Expansion(s) configured.
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 04.01 4 June 2010
Copyright © 2004-2010 Nortel Networks. All Rights Reserved.
Procedure 8 "Troubleshooting
95).
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