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Media Gateway Controller Local Diagnostic Shells 63Resident Trunk DiagnosticThis program automatically monitors all trunk calls and records apparentfaults on each trunk. If the number of faults on a trunk exceeds the thresholdfor that trunk, the program generates a system message identifying thetrunk and the type of fault.A failure on a trunk can keep the trunk from detecting incoming calls. Thethreshold mechanism cannot detect such a failure, so this program alsorecords the number of days since each trunk received an incoming call. Ifsome incoming calls are not being processed, use the command LMAX inTrunk Diagnostic 1 (LD 36) to identify the trunk with the maximum idle days.System LoaderThe System Loader program loads all call processing programs and dataand starts memory-checking diagnostics. After all required programsand data are loaded and all checks performed, the System Loader iserased from system memory, the Initialize Program runs, and normal callprocessing begins. This process is called a sysload (or system reload). TheSystem Loader operates automatically on system power-up or if a coreequipment or power fault destroys information in the system memory.Media Gateway Controller Local Diagnostic ShellsYou can perform maintenance functions specific to the Media GatewayController (MGC) through Local Diagnostic Shell 1 (LDB1) and LocalDiagnostic Shell 2 (LDB2). LDB1 provides MGC-specific functions similarto the PDT1 shell functions on the Call Server. LDB2 provides advancedfunctions similar to the PDT2 shell functions on the Call Server.Access the LDB shells locally on an MGC serial port or remotely throughrlogin, telnet, secure shell, or PPP. Passwords for the MGC platformare synchronized with passwords on the Call Server. Therefore, whenlogging on to LDB on the MGC, enter the Call Server PDT1 user nameand password to access LDB1 and the Call Server PDT2 user name andpassword to access LDB2. To access the VxWorks shell, enter su from theLDB2 Command Line Interface (CLI).When you log on to the MGC, the following login banner appears:Welcome to the Media Gateway Controller command line.Firmware Version: version>Management IP:IPMG: shelf>Call Server IP Address: IP address>Installed daughterboards: where x = 1 or 2OS Time: mm/dd/yyyy (hh:mm:ss)Use "exit" to logout.Nortel Communication Server 1000Communication Server 1000E MaintenanceNN43041-700 01.02 StandardRelease 5.0 20 June 2007Copyright © 2007, Nortel Networks.
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