Viewing MSTP Port Information

View the MSTP port information to display the MSTP, CIST port, and MSTI port information maintained by every port of the common spanning tree.

Procedure

To enter User EXEC mode, log on to the switch.
View the MSTP port information:

show spanning-tree mstp port role [slot/port[/sub-port][-slot/port[/sub-port]][,...]]

Note

If your platform supports channelization and the port is channelized, you must also specify the sub-port in the format slot/port/sub-port.

Example

View the MSTP port information:

Switch:1> show spanning-tree mstp port role 1/3

============================================================================
                           CIST Port Roles and States
============================================================================

Port-Index  Port-Role    Port-State   PortSTPStatus  PortOperStatus
----------------------------------------------------------------------------
1/3         Disabled    Discarding      Enabled        Disabled