IOS Adventures
A Network and Security Engineer's Diary
Umut Destan
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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