3Com 3C780 User Guide - Page 113

Interpreting the LEDs

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Using the Hub 5-11 Table 5-7. Ring Management States Ring Management State Definition Isolated The initial RMT state. Non_Op The MAC is participating in ring recovery, and the ring is not operational. Ring_Op The MAC is part of an operational FDDI ring. Detect Non_Op_Dup Ring_Op_Dup The ring has not been operational for a specified period. The address of the MAC under control duplicates the address of another MAC on the ring. The ring is not operational. The address of the MAC under control duplicates the address of another MAC on the ring. The ring is operational. Directed The MAC under control is sending beacon frames notifying the ring of a stuck condition. Trace RMT has discovered a stuck beacon condition and is initiating a trace to recover. Interpreting the LEDs The LEDs located on the faceplates of the management module and the various media modules provide information about the configuration and operation of the hub. Management Module LEDs The interpretation of the management module LEDs is shown in Table 5-8.

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5-11
Using the Hub
Table 5-7.
Ring Management States
Ring Management
State
Definition
Isolated
The initial RMT state.
Non_Op
The MAC is participating in ring recovery, and
the ring is not operational.
Ring_Op
The MAC is part of an operational FDDI ring.
Detect
The ring has not been operational for a specified
period.
Non_Op_Dup
The address of the MAC under control duplicates
the address of
another MAC on the ring. The
ring is not operational.
Ring_Op_Dup
The address of the MAC under control duplicates
the address of another MAC on the ring. The ring
is operational.
Directed
The MAC under control is sending beacon
frames notifying the ring of a stuck condition.
Trace
RMT has discovered a stuck beacon condition
and is initiating a trace to recover.
Interpreting the LEDs
The LEDs located on the faceplates of the management module and the various
media modules provide information about the configuration and operation of the
hub.
Management Module LEDs
The interpretation of the management module LEDs is shown in Table 5-8.