Monitoring 100BaseT link voice Quality of Service 95Procedure 6Troubleshooting Layer 2 and Layer 3 LAN connections for MG 1000TStep Action1 Verify that the green Link LED on the daughterboard in the MG1000T Core SSC is on (this indicates that the physical connection isfunctioning). If the Link LED is off, check the physical connection byverifying that the daughterboard and cables are properly installed.2 Test the LAN connectivity between the MG 1000T Core and theLayer 2/3 switch by pinging the IP address of the Layer 2/3 switch.Perform the same test between the MG 1000T Expansion and theLayer 2/3 switch. Consult the local IS department for the appropriateIP address.3 To disable the link for testing, in LD 32, enter DISS (where n =IP daughterboard port#).4 To test the signaling and voice path of the daughterboard, in LD 135,enter LLBK #>. If the card fails the LLBK test, replace theIP daughterboard.5 Verify that the MAC address of the MG 1000T Expansion is correctlyconfigured on the MG 1000T Core. In LD 117, enter PRT IPR toaccess the MAC data.6 In LD 117, enter PING the MG 1000TExpansion> to verify the network connection.7 Reenable any disabled components. Verify that the 100BaseTconnection between the MG 1000T Core and the MG 1000TExpansion is operating by pinging the IP address of the MG 1000TExpansion(s) configured.—End—Monitoring 100BaseT link voice Quality of ServiceBehavioral characteristics of the network are dependent on factors likeRound Trip Delay (RTD), queueing delay in the intermediate nodes, packetloss, and available bandwidth.The service level of each IP link is measured and maintained on the CallServer for the operation of the MG 1000Es, and on the MG 1000T Corefor the operation of the MG 1000T Expansions. Information for latencyand packet loss is collected from the hardware and processed. Based onsystem-configured thresholds, the level of service is derived and reportedNortel Communication Server 1000Communication Server 1000E MaintenanceNN43041-700 01.02 StandardRelease 5.0 20 June 2007Copyright © 2007, Nortel Networks.