Cabletron Systems TRMM-2, Руководство пользователя

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MONITORING AND TROUBLESHOOTING
3-6
•
Ensure the NMS is not isolated from the TRMM-2. For example, if the
NMS and the TRMM-2 are on different rings, ensure these rings are
switched or bridged together.
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Use a PING utility to determine if IP traffic is reaching the
TRMM-2. If the TRMM-2 does not respond to PING requests,
attempt to PING another device on the same subnet. If that device
responds, then the problem may be with the TRMM-2. If the
device does not respond, the problem is likely not isolated to the
TRMM-2.
3.2.3 Failure To Manage Rings
If the TRMM-2 is not gathering statistical data on an interface, try the
following:
•
If the problem occurs on Interface 2, ensure that you have configured
the STATION port interface as described in the The TRMM-2 Local
Management User’s Guide.
•
Use each NSRT LED to verify the management interfaces are inserted
and participating in the ring.
•
If the problem is with Interface 1, verify that the LWRP LED is unlit
indicating the TRMM-2 is not isolated from FNB Ring 1.
Failure of a management interface to insert may indicate a beaconing
ring. The TRMM-2 will not insert into a beaconing ring. After
detecting a beaconing ring the TRMM-2 will continuously stop trying
to insert for 30 seconds and then re-attempt insertion. If you suspect a
beacon, remove MIMs from the hub one at a time (pausing long
enough for the TRMM-2 to try to re-insert) until the TRMM-2 inserts
into the ring. When you remove a MIM with a device that was causing
the beacon, the beacon should stop and the TRMM-2’s NSRT LED
(for that interface) will turn GREEN.
•
Reset the TRMM-2.