Brocade Multi-Service IronWare Switching Configuration Gui Bedienungsanleitung PDF herunterladen (Seite 447)

Multi-Service IronWare Switching Configuration Guide 417

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State machines

Handshake when a root port has been elected

If a non-root bridge already has a Root port, RSTP uses a different type of handshake. For example,

in Figure 79, a new root bridge is added to the topology.

FIGURE 79 Addition of a new root bridge

The handshake that occurs between Switch 60 and Switch 100 follows the one described in the

previous section (“Handshake when no root port is elected”). The former root bridge becomes a

non-root bridge and establishes a Root port (Figure 80).

However, since Switch 200 already had a Root port in a forwarding state, RSTP uses the Proposing

-> Proposed -> Sync and Reroot -> Sync and Rerooted -> Rerooted and Synced -> Agreed

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Brocade Multi-Service IronWare Switching Configuration Gui Bedienungsanleitung Seite 447