Show Spanning-Tree Mst - Cisco Catalyst 4500 Series Command Reference Manual

Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches

show spanning-tree mst

To display MST protocol information, use the show spanning-tree mst command.
Syntax Description configuration
instance-id
detail
interface interface
Defaults
This command has no default settings.
Command Modes Privileged EXEC mode
Command History Release
12.1(12c)EW
12.2(25)EW
Usage Guidelines This command is not supported on systems that are configured with a Supervisor Engine I.
In the output display of the show spanning-tree mst configuration command, a warning message might
display. This message appears if you do not map secondary VLANs to the same instance as the associated
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
OL-27596 -01
show spanning-tree mst [configuration]
show spanning-tree mst [instance-id] [detail]
show spanning-tree mst [instance-id] interface interface [detail]
(Optional) Displays region configuration information.
(Optional) Instance identification number; valid values are from 0 to 15.
(Optional) Displays detailed MST protocol information.
(Optional) Interface type and number; valid values for type are fastethernet,
gigabitethernet, tengigabitethernet, port-channel, and vlan. See the "Usage
Guidelines" section for more information.
Modification
Support for this command was introduced on the Catalyst 4500 series switch.
Added support for the 10-Gigabit Ethernet interface.
show spanning-tree command for output definitions.
Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
show spanning-tree mst
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