Viewing MSTP MSTI Information

View MSTP MSTI information to ensure the feature is configured correctly for your network.

Procedure

To enter User EXEC mode, log on to the switch.
Show MSTI information:

show spanning-tree mstp msti [config <1–63>] [port <config {slot/port[/sub-port][-slot/port[/sub-port]][,...]}|role {slot/port[/sub-port][-slot/port[/sub-port]][,...]}|statistics {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

Show MSTI information:

Switch:1> show spanning-tree mstp msti config 62

===========================================================================
                              MSTP Instance Status
===========================================================================
Instance Id                     : 62
Msti Bridge Regional Root       : 80:00:00:15:e8:9e:10:01
Msti Bridge Priority            : 32768 (0x8000)
Msti Root Cost                  : 0
Msti Root Port                  : cpp
Msti Instance Vlan Mapped       :
Msti Instance Vlan Mapped2k     :
Msti Instance Vlan Mapped3k     :
Msti Instance Vlan Mapped4k     : 4000

Switch(config)# show spanning-tree mstp msti port statistics 1/1

===============================================================================
                  MSTP Instance-specific Per-Port Statistics

===============================================================================
Port Number                  : 1/1
Instance Id                  : 1
Msti Port Fwd Transitions    : 0
Msti Port  Received BPDUs    : 0
Msti Port Transmitted BPDUs  : 0
Msti Port Invalid BPDUs Rcvd : 0

Variable Definitions

Use the data in the following table to use the show spanning-tree mstp msti command.

Table 1. Variable definitions
Variable	Value
config `[<1-63>]`	Shows the configuration for one or all MSTP instance IDs.
port	Shows the configuration, role, or statistics information of a MSTP port. config {slot/port[/sub-port][-slot/port[/sub-port]][,...]} role {slot/port[/sub-port][-slot/port[/sub-port]][,...]} statistics {slot/port[/sub-port][-slot/port[/sub-port]][,...]}