Avaya Troubleshooting Routers Průvodce řešením problémů stáhnout pdf (Strana 29)

Introduction

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Using the System Log to Display Event Messages

The processor that is running software in each slot maintains its own log file in

local memory. Software entities (such as CSMA/CD and IP) report messages

when routine and noteworthy events occur. When you instruct Site Manager or the

Technician Interface to display the messages, the router automatically assembles

the messages from all slots into a single file and displays the file. Use the

messages in this file to diagnose a problem with a port, slot, router, or protocol.

You can use the Technician Interface

log

command to display the log in the

router’s memory, or use the Events Manager tool’s File > Get Current File option

to display it. See Event Messages for Routers for descriptions of the format and

meaning of the event messages.

When you view a log or save it to a flash memory card, the router combines log

files from each processor into a single file and sorts the events by date and time.

If a fault event message appears in the log, use the procedures in this guide to help

you isolate and correct the problem. If you cannot recover from the fault, contact

the Nortel Networks Technical Solutions Center for the appropriate action to take.

After viewing all event messages that pertain to a specific problem, and before

running tests to isolate the problem, you may want to issue the Technician

Interface

clearlog

command or choose Events Manager Administration >

Clear log to remove all previously logged events from the event log. Nortel

Networks recommends that you save the log before you clear it.

Note:

When using the Events Manager tool to display a log, choose the

Descending Order option. If you do this, the Events Manager displays the most

recent event messages first. If you display a log in ascending order, and the log

contains more events than the maximum that the Events Manager can open, it

may not be able to display the most recent events.

Caution:

Always save a copy of the entire log to your flash memory card

when a fault appears. The router saves the log to a flash memory card only

when you issue the Technician Interface

save log

command. The

format of the log file is binary. If you request help from the Nortel Networks

Technical Solutions Center, you may need to provide the binary version of the

log file to troubleshoot the problem. Do not delete the log file from the router

until you are sure you have solved the problem.

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