spanning-tree mstp version

Assigns the bridge version.


Command Parameters

Configures the version as MSTP.
Configures the version as RSTP.
Configures the version as STP compatible.
Although STP and MSTP are variations of the same spanning tree protocol, they communicate information differently. A switch in MSTI mode cannot recognize the spanning tree groups running on a chassis configured with Nortel STP. MSTP spanning tree groups are not the same as Nortel STP spanning tree groups.
Using a switch in MSTP mode with another chassis in STP mode can create a loop in the network. You must configure protocol migration to true on all spanning-tree enabled interfaces when you change the spanning tree version from STP-compatible to MSTP for those interfaces to work in the proper mode.


The default is MSTP.

Command Mode

Global Configuration