Cabletron Systems STHI Ring Status, Ring Number, Stations on a Ring, Ports Enabled, Ring Speed

The Device Statistics Screen

Ring Status 2

This displays the status of the ring to which the STHI is currently connected: if the STHI is bypassed, it refers only to the STHI hub’s internal ring; otherwise, it refers to the stack’s common ring.

•Unknown — This reflects a transient state during which the management agent is unable to determine the current ring status.

•Closed —The STHI has disconnected itself completely from other hubs in the stack: it is not supporting the common ring and cannot determine the ring state.

•Normal — The ring is operating trouble-free.

•Purge — The active monitor has issued a ring purge command to clear all circulating transmissions. Communications will be restored momentarily—when the active monitor releases a new token.

•Contention — The ring has entered into the active monitor contention process to determine a new active monitor for the ring.

•Beaconing — The STHI has detected a beacon frame.

•Lobe Fail — A station failed the lobe self-test when attempting to insert into the ring; soft-errors may have occurred.

Ring Number 3

This identifies the ring on which a bridge is available. Zero indicates that there is no bridge on any ring in the stack.

Stations on a Ring 4

This displays the number of stations currently inserted into the ring. If the STHI is bypassed, only the stations on the STHI’s self-supported ring are counted.

Ports Enabled 5

This displays the number of TCU ports currently enabled.

Ring Speed 6

This displays the STHI hub’s currently set ring speed.

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