Cabletron Systems STS16-20R - Manual (Page 47)

33
Switch Overview SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide
Figure 9. Example of Dynamic Source Route Recovery, Normal State
If one of the switches (Figure 9) or its link to any of the Token-Rings fail, (one of)
the remaining active switch(es) will after a short interval activate its backup path to
take over the traffic of the failed switch (see Figure 10) When the failing switch has
been repaired/replaced, the traffic will automatically revert to it.
Backup BRF
Inactive
Backup BRF
Inactive
BRF
Bridge No. B1
BRF
Bridge No. B2
A
T
M
A
T
M
A
T
M
A
T
M