Monitoring With Leds; Troubleshooting Checklist; Checking The Trbmim-T - Cabletron Systems TRBMIM-T User Manual

Token ring bridge/management module

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MONITORING AND TROUBLESHOOTING

If a single retry of the initialization test produces another error

NOTE

message, call Cabletron Systems Technical Support for

assistance.

Exiting The Screen

After the completion of power up tests, the Local Management password

screen should automatically appear. If it does not appear, press the Enter

key.

5.2.2 Monitoring With LEDs

LEDs provide information about the working order of the TRBMIM-T

during all phases of its operation, including the power up process. See

Section 5.1 for a complete description of LED functions and color codes

As the self-tests execute, LEDs exhibit various lighting sequences during

each phase of the power-up cycle. If a failure is detected within a subtest,

the BOK LED goes off, or the ERR LED lights red, or both conditions

occur as the power-up process stops.

Upon successful completion of the power-up process, the ERR LED goes

off, and the BOK LED blinks Green. The remaining LEDs reﬂect current

network-conﬁguration settings. If these conditions do not exist at the end

of the power-up process, note which LEDs are lit and contact Cabletron

Systems Technical Support for assistance.

This section provides a checklist of troubleshooting procedures to help

you resolve problems you may encounter with a TRBMIM-T and the

Token Ring network.

Check to see if the TRBMIM-T is passing trafﬁc (using a Ping utility for

example). If it is not, check the following:

•

Verify that the BOK LED is blinking green. If it is not, try resetting the

module.

5-8

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