Specifications
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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.3.0XO(15.1(1)XO)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show spanning-tree mst
show spanning-t ree mst
To display MST protocol information , use the show spanning-tree mst command.
show spanning-tree mst [configuration]
show spanning-tree mst [instance-id] [detail]
show spanning-tree mst [instance-id] interface interface [detail]
Syntax Description
Defaults T his command has no default settings.
Command Modes Privileged EXE C mode
Usage Guidelines I n the output dis play of the show spanning-tree mst configuration command, a warning me ssage migh t
display. This messag e appears if you do not ma p secondary VLANs to the same instance as the assoc iated
primary VLAN. The display includes a list of the secondary VLANs that are not mapped to the same
instance as the associated primary VLAN. The warning message is as follows:
These secondary vlans are not mapped to the same instance as their primary:
-> 3
See the show spanning-tree command for output definitions.
Examples This exampl e shows how to display region configuration inform ation:
Switch# show spanning-tree mst configuration
Name [leo]
Revision 2702
Instance Vlans mapped
-------- ---------------------------------------------------------------------
0 1-9,11-19,21-29,31-39,41-4094
1 10,20,30,40
-------------------------------------------------------------------------------
Switch#
This example s hows how t o displa y additional MST protocol val ues:
Switch# show spanning-tree mst 3 detail
# # # # # # MST03 vlans mapped: 3,3000-3999
Bridge address 0002.172c.f400 priority 32771 (32768 sysid 3)
Root this switch for MST03
configuration (Optional) Displays region configuration information.
instance-id (Optional) Instance identification number; valid values are from 0 to 15.
detail (Optional) Displays detailed MST protocol information.
interface interface (Optional) Interface type and number; valid values for type are fastethernet,
gigabite the rnet, tengigabitethernet, port-channel, and vlan. See the “Usage
Guidelines” section for more information.