Cabletron Systems STS16-20D, STS16-20R manual 142, Primary and Traced Dsrr Port

Models: STS16-20R STS16-20D

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142

The traced port and the backup for the traced port must connect to the same legacy or emulated Token-Ring.

The ports belonging to a DSRR group must be connected to the same rings as the corresponding ports of a DSRR group with the same Group ID on another switch.

The CRFs containing the primary and traced ports of a DSRR group must not contain other ports.

A backup BRF can only forward traffic for one failed BRF at a time.

If a BRF, for which a DSRR group is created, has more than two CRFs, the primary and the traced ports must be in the same box.

BRF

 

Bridge No. B1

 

Backup BRF

 

Inactive

 

A

A

T

T

M

M

Backup for primary port

Traced port

Primary port

Backup for traced port

Figure 27. Primary and Traced DSRR Port

SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide

Switch Configuration

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Cabletron Systems STS16-20D, STS16-20R manual 142, Primary and Traced Dsrr Port