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Troubleshooting Routers

5-24

308656-14.00 Rev 00

Example

If you are filtering events from slots 3 and 4, enter the following command:

log -fftwid -eSYNC -s3 -s4

If you see a message like the following, see “Troubleshooting the Internal

Clock Settings (Lab Environments Only)” later in this chapter:

Warning Sync Code: 40 "Connector COM2: clock speed does not

match other ports."

Use the Technician Interface to look at the values of the following

attributes in the wfSyncEntry object:

• wfSyncRuntsRx (

get wfSyncEntry.51.*)

This shows the number of frames received that are smaller than the

minimum length. It usually indicates a clocking problem on the line.

• wfSyncBadFramesRx (

get wfSyncEntry.49.*)

This shows the frames received that were unrecognizable. It may indicate

underflow errors or an out-of-phase clock on the remote side.

• wfSyncLackRescRx (

get wfSyncEntry.42.*) and wfSyncLackRescRx

(

get wfSyncEntry.43.*)

This shows the number of times the router dropped frames it received

because of a lack of buffers or a lack of space on the transmission queue.

Some errors are likely, especially when the router boots. If this number

increases to a high rate (such as 15/minute) for an extended period, it may

indicate a problem.

Check the wfKernelEntry for the slot where the problem is occurring to

determine whether buffers are available. To do this, enter the command

get wfKernelEntry.*.

<slot>

. For example, enter the following command:

get wfKernelEntry.*.2. The router reports the number of available buffers

in slot 2. If buffers are available, something on the network is preventing

the router from updating its buffer lists.

Note:

The get command is next to the attribute name. Or, use the Quick Get

path wfLine > wfSyncTable.

1 2 ... 97 98 99 100 101 102 103 104 105 106 107 ... 267 268

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Avaya Troubleshooting Routers Guía para resolver problemas Pagina 102