Configuring Mst Instance Parameters - Cisco Catalyst 4500 Series Software Configuration Manual

Configuring MST
Name
Revision
Instance
--------
0
2
-------------------------------------------------------------------------------
Switch(config-mst)# no instance 2
Switch(config-mst)# show pending
Pending MST configuration
Name
Revision
Instance
--------
0
-------------------------------------------------------------------------------
Switch(config-mst)# instance 1 vlan 2000-3000
Switch(config-mst)# no instance 1 vlan 1500
Switch(config-mst)# show pending
Pending MST configuration
Name
Revision
Instance
--------
0
1
-------------------------------------------------------------------------------
Switch(config-mst)# end
Switch(config)# no spanning-tree mst configuration
Switch(config)# end
Switch# show spanning-tree mst configuration
Name
Revision
Instance
--------
0
-------------------------------------------------------------------------------

Configuring MST Instance Parameters

To configure MST instance parameters, perform this task:
Command
Step 1
Switch(config)# spanning-tree mst X priority Y
Step 2
Switch(config)# spanning-tree mst X root [primary |
secondary]
Step 3
Switch(config)# Ctrl-Z
Step 4
Switch# show spanning-tree mst
This example shows how to configure MST instance parameters:
Switch(config)# spanning-tree mst 1 priority ?
<0-61440>
Switch(config)# spanning-tree mst 1 priority 1
% Bridge Priority must be in increments of 4096.
% Allowed values are:
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
23-30
[cisco]
2
Vlans mapped
---------------------------------------------------------------------
1001-4094
1-1000
[cisco]
2
Vlans mapped
---------------------------------------------------------------------
1-4094
[cisco]
2
Vlans mapped
---------------------------------------------------------------------
1-1999,2500,3001-4094
2000-2499,2501-3000
[]
0
Vlans mapped
---------------------------------------------------------------------
1-4094
bridge priority in increments of 4096
Chapter 23
Purpose
Configures the priority for an MST instance.
Configures the bridge as root for an MST instance.
Exits configuration mode.
Verifies the configuration.
Configuring STP and MST