8 Dec 2009

Spanning Tree Flavours

802.1D ieee STP (Remember from 802.1dog slow)
Uses only a single Spanning tree instance for all VLANs.

PVST Cisco proprietary. Uses a different spanning-tree instance for every VLAN.

802.1w RSTP Rapid STP
RSTP @ Cisco, very good explanation

802.1s MSTP Multiple STP
Cisco whitepaper about MST

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