
Troubleshooting Routers
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4.
Look at the values of the following attributes:
• wfTokenRingMadrSelect
This shows the source of the MAC address: boxwide (1), PROM (2), or
configuration (3).
•wfTokenRingSpeed
This shows whether the speed is 4 Mb/s (4194304) or 16 Mb/s
(16777216).
• wfTokenRingEarlyTokenRelease
This shows whether Early Token Release is enabled (1) or disabled (2). It
is valid only when the ring speed is 16 Mb/s.
Troubleshooting Other Data Link Layer Protocols
This section assumes that you have isolated a problem to a data link connection. If
not, refer to Chapter 2 to determine if these instructions apply to your problem.
Troubleshoot a data link layer protocol as follows:
1.
Use the Events Manager or the Technician Interface to filter the log to
display messages of all severity levels for the media in question.
The Technician Interface command is as follows:
log -fftwid -e
<ENTITY>
-s
<slot_no.>
When specifying
<ENTITY>
, use uppercase letters. See Event Messages for
Routers for a list of the entities.
Example
If you are filtering events from the HSSI entity running in slots 3 and 4, enter
the following command:
log -fftwid -eHSSI -s3 -s4
2.
Check the state of the media.
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