Brocade Multi-Service IronWare Switching Configuration Gui Bedienungsanleitung Seite 552

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522 Multi-Service IronWare Switching Configuration Guide
53-1003036-02
Manual switch
15
The node, which receives the R-APS (MS), forwards it to the adjacent nodes. If the receiving node is
already in the Idle or Pending state, it unblocks the non-failed port and stops transmitting R-APS
messages. Only one MS can exist in the topology at any time. An MS condition has to be manually
cleared with the no command.
NOTE
If any ERN is in an FS state or in a protected state through an SF event and an operator tries to
configure an MS, the ERN will reject the request.
When a manual switch is cleared by an operator on the same node on which the MS is configured,
the node keeps the port in a blocking state, sends out a R-APS (NR) to the adjacent node, and
starts the guard timer. Other nodes that receive the R-APS (NR) forward the message. When the
RPL owner receives this message, then the RPL owner starts the WTR timer. When the WTR timer
expires, the RPL owner sends out a R-APS (NR, RB), blocks the RPL, and flushes the FDB. Other
nodes in the topology that receive the R-APS (NR, RB) unblock any non-failed port and flush the
FDB.
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