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Cisco MWR 2941 Mobile Wireless Edge Router Release 3.5 Command Reference, Cisco IOS Release 15.1(3)MR
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Chapter Cisco MWR 2941 Router Command Reference, Release 15.1(3)MR
instance (VLAN)
instance (VLAN)
To map a VLAN or a group of VLANs to a multiple spanning tree (MST) instance, use the instance
command in MST configuration mode. Use the no form of this command to return the VLANs to the
default command and internal spanning tree (CIST).
instance instance-id {vlans vlan-range}
no instance instance-id
Syntax Description
Defaults No VLANs are mapped to any MST instance (all VLANs are mapped to the CIST instance).
Command Modes MST configuration mode (config-mst)
Command History
Usage Guidelines The vlans vlan-range is entered as a single value or a range.
The mapping is incremental, not absolute. When you enter a range of VLANs, this range is added or
removed to the existing instances.
Any unmapped VLAN is mapped to the CIST instance.
Examples The following example shows how to map a range of VLANs to instance 2:
Router# configure terminal
Router(config)# spanning-tree mst configuration
Router(config-mst)# instance 2 vlan 1-100
Router(config-mst)#
The following example shows how to map a VLAN to instance 5:
instance-id Instance to which the specified VLANs are mapped; valid values are from
0 to 4094.
vlans vlan-range Specifies the number of the VLANs to be mapped to the specified instance;
valid values are from 1 to 4094.
Release Modification
12.2(14)SX Support for this command was introduced on the Supervisor Engine 720.
12.2(17d)SXB Support for this command on the Supervisor Engine 2 was extended to Cisco
IOS Release 12.2 (17d)SXB.
12.2(18)SXF This command was changed as follows:
• You can configure up to 65 interfaces.
• You can designate the instance-id from 1 to 4094.
15.0(1)MR This command was integrated into Cisco IOS Release 15.0(1)MR.
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