Cabletron Systems TRMM-4, User Manual

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MONITORING AND TROUBLESHOOTING
3-3
3.1.1 CPU - Central Processor Unit
The CPU LED indicates the operational status of the TRMM-4’s
processor. When the module first receives power or is reset, it begins a
boot sequence and some self-tests. Booting takes several minutes, the
time depends on the number of modules in the hub and the size of the
firmware image being downloaded into the TRMM-4.
During start-up, the CPU LED indicates a variety of operational states, as
shown in
Table 3-2 .
3.1.2 LWRP - Left Wrap
The LWRP (Ring 1 Left Wrap) LED indicates the state of the TRMM-4’s
left FNB Ring 1 connection.
AMBER indicates that the left connection has been wrapped; the
TRMM-4’s FNB Ring 1 segment has been isolated from all other MIMs.
OFF is the normal state; the left connection is not left wrapped.
Table 3-2 CPU LED Operational States
State(s) Meaning
OFF The module is not receiving power.
Briefly turns RED The module is resetting.
GREEN The module has passed its power check.
AMBER
Performing diagnostic checks.
(It will stay here for a while.)
Cycles through AMBER,
OFF, GREEN, and OFF for a
while.
Testing and booting period has begun.
If blinking RED, and stays
that way.
The module has failed self-tests.
GREEN Testing and booting are nearly complete.
Blinking GREEN
The module is fully functional. The CPU
LED stays blinking GREEN under normal
operating conditions.