Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) User Manual
Page 555
Multi-Service IronWare Switching Configuration Guide
525
53-1003036-02
Forced switch
15
shows the sequential order of events triggered as a result of an operator-initiated forced
switch command entered from ERN 4.
FIGURE 141
Single FS process--operator entered the forced switch command from ERN 4
RPL owner (ERN1)
Non-RPL node (ERN 2)
Non-RPL node (ERN 3)
Non-RPL node (ERN 4)
Idle
Idle
Idle
From the Idle state, ERN 4:
1
Processes the Forced
Switch command
2
Blocks the requested
port
3
Transmits R-APS (FS)
4
Unblocks the
non-requested port
5
Flushes the FDB
6
Enters the Forced
Switch (FS) state
From the Idle state, ERN 1:
1
Unblocks the RPL
2
Flushes the FDB for
first time
3
Forwards R-APS(FS)
4
Enters the FS state
From the Idle state, ERN 2:
1
Unblocks the port
2
Flushes the FDB for
the first time
3
Forwards R-APS(FS)
4
Enters the FS state
From the Idle state, ERN 3:
1
Unblocks the port
2
Flushes the FDB for the
first time
3
Forwards R-APS(FS)
4
Enters the FS state
From the FS state, ERN 1
forwards R-APS
From the FS state, ERN 2
forwards R-APS
From the FS state, ERN 3
forwards R-APS
From the FS state, ERN 4:
7. Transmits R-APS(FS)
8. Terminates the received
R-APS on the blocking port
9. Terminates its own
R-APS(FS)
All ERNs remain in FS state.