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Foundry Configuration Guide for the FESX, FSX, and FWSX
7 - 30
© Foundry Networks, Inc.
December 2005
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Sync and Reroot – The Root port then asserts a sync and a reroot signal on all the ports on the bridge. The
signal tells the ports that a new Root port has been assigned and they are to renegotiate their new roles and
states. The other ports on the bridge assert their sync and reroot signals. Information about the old Root port
is discarded from all ports. Designated ports change into discarding states (Figure 7.10).
Figure 7.10
Sync and Reroot
Switch 200
Switch 400
Switch 300
Port1
Port1
Root port
Sync
Reroot
Forwarding
Port2
Sync
Reroot
Discarding
Port2
Port3
Port3
Sync
Reroot
Discarding
Switch 60
Port4
Designated port
Proposing
Port2
Designated
port
Port2
Root port
Port4
Root port
Sync
Reroot
Discarding
BigIron
Indicates a signal
Proposing
Switch 100
Содержание FastIron Edge Switch X424
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