spanning-tree mstp version
   
   
      Assigns the bridge version.
      
Note   
         You cannot configure the MSTP version when MSTP-Fabric Connect Multi
                                Homing is enabled on the switch.
       
      Syntax
         
         
            - 
               
                  default spanning-tree mstp
                     version
                
- 
               
                  spanning-tree mstp version
                     mstp 
                
- 
               
                  spanning-tree mstp version
                     rstp 
                
- 
               
                  spanning-tree mstp version
                     stp-compatible 
                
Command Parameters
         
         
            
               - mstp
- Configures the version as
                  MSTP.
- rstp
- Configures the version as
                  RSTP.
- stp-compatible
- 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.
Default
         
         The default is MSTP.
      
      Command Mode
         
         Global Configuration