Interpreting The Leds; Management Module Leds; Ring Management States - 3Com 3C780 - LinkBuilder FDDI Base Unit User Manual

Table 5-7. Ring Management States
Ring Management
State
Isolated
Non_Op
Ring_Op
Detect
Non_Op_Dup
Ring_Op_Dup
Directed
Trace

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.
Definition
The initial RMT state.
The MAC is participating in ring recovery, and
the ring is not operational.
The MAC is part of an operational FDDI ring.
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.
The MAC under control is sending beacon
frames notifying the ring of a stuck condition.
RMT has discovered a stuck beacon condition
and is initiating a trace to recover.
Using the Hub
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