Figure 10. Example Of Dynamic Source Route Recovery, Normal State - Cabletron Systems SmartSTACK STS16-20RM Installation And User Manual

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Figure 10. Example of Dynamic Source Route Recovery, Normal State

If one of the switches (Figure 10) 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 11). When the failing switch
has been repaired/replaced, the traffic will automatically revert to it.
SmartStack STS16-20RM/STS16-20FRM Token Ring Switches, P/N: 9032957-01
BRF
Bridge No. B1
Backup BRF
Inactive
A
T
M
BRF
Bridge No. B2
Backup BRF
Inactive
A
T
M
A
T
M
A
T
M
Switch Overview