Entering Mst Configuration Mode - Cisco AJ732A - MDS 9134 Fabric Switch Configuration Manual

Chapter 9 Configuring MST
S e n d f e e d b a c k t o n x 5 0 0 0 - d o c f e e d b a c k @ c i s c o . c o m
To enable MST on the switch, perform this task:
Command
Step 1
switch# configure terminal
Step 2
switch(config)# spanning-tree mode mst
This example shows how to enable MST on the switch:
switch# configure terminal
switch(config)# spanning-tree mode mst
To disable MST on the switch, perform this task:
Command
switch(config)# no spanning-tree mode
mst
Caution Changing the spanning tree mode can disrupt traffic because all spanning tree instances are stopped for
the previous mode and restarted in the new mode.
Note Because STP is enabled by default, entering a show running command to view the resulting
configuration does not display the command that you entered to enable STP.

Entering MST Configuration Mode

You enter MST configuration mode to configure the MST name, VLAN-to-instance mapping, and MST
revision number on the switch.
For two or more switches to be in the same MST region, they must have the identical MST name,
VLAN-to-instance mapping, and MST revision number.
Each command reference line creates its pending regional configuration in MST configuration mode. In
Note
addition, the pending region configuration starts with the current region configuration.
OL-16597-01
Purpose
Enters configuration mode.
Enables MST on the switch.
Purpose
Disables MST on the switch and returns you to Rapid
PVST+.
Cisco Nexus 5000 Series Switch CLI Software Configuration Guide
Configuring MST
9-11