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15-10
Software Configuration Guide—Release 12.2(25)SG
OL-7659-03
Chapter 15 Understanding and Configuring Multiple Spanning Trees
Configuring MST
Switch(config-mst)# show current
Current MST configuration
Name []
Revision 0
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 1-4094
-------------------------------------------------------------------------------
Switch(config-mst)# name cisco
Switch(config-mst)# revision 2
Switch(config-mst)# instance 1 vlan 1
Switch(config-mst)# instance 2 vlan 1-1000
Switch(config-mst)# show pending
Pending MST configuration
Name [cisco]
Revision 2
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 1001-4094
2 1-1000
-------------------------------------------------------------------------------
Switch(config-mst)# no instance 2
Switch(config-mst)# show pending
Pending MST configuration
Name [cisco]
Revision 2
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 1-4094
-------------------------------------------------------------------------------
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 [cisco]
Revision 2
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 1-1999,2500,3001-4094
1 2000-2499,2501-3000
-------------------------------------------------------------------------------
Switch(config-mst)# end
Switch(config)# no spanning-tree mst configuration
Switch(config)# end
Switch# show spanning-tree mst configuration
Name []
Revision 0
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 1-4094
-------------------------------------------------------------------------------