Brocade Multi-Service IronWare Switching Configuration Gui Manual de usuario Pagina 548

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518 Multi-Service IronWare Switching Configuration Guide
53-1003036-02
Initializing a new ERN
15
Figure 131 shows the next sequence of events. The actions of each ERN are:
ERN 1, from the Pending state, unblocks the left interface, stops sending R-APS (NR) and stays
in the Pending state. Now both interfaces are in the forwarding state.
ERN 2 takes no action.
ERN 3 takes no action.
ERN 4 stays in the Pending state and transmits R-APS (NR) messages. The left interface is
blocked, and the right interface is in the forwarding state.
FIGURE 131 Initializing an ERP topology - IV
Figure 132 shows the next sequence of events. Next ERN 2 initializes. The actions of each ERN are:
ERN 1 stays in the Pending state.
ERN 2 (RPL owner), from the Init state, stops the guard timer, stops the WTB timer, blocks the
RPL, unblocks the non-RPL port, enters the Pending state, transmits R-APS (NR) messages,
and starts the WTR timer.
ERN 3 takes no action.
ERN 4 stays in the Pending state and transmits R-APS (NR) messages. The left interface is
blocked.
FIGURE 132 Initializing an ERP topology - V
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