Cisco Nexus 5000 Series Command Reference Release 4.0(1a)N2(1) (OL-16599-01, March 2009)

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Cisco Nexus 5000 Series Command Reference
OL-16599-01
Chapter 2 Ethernet Commands
instance vlan
instance vlan
To map a VLAN or a set of VLANs to a Multiple Spanning Tree instance (MSTI), use the instance vlan
command. To delete the instance and return the VLANs to the default instance (common and internal
spanning tree [CIST]), use the no form of this command.
instance instance-id vlan vlan-id
no instance instance-id [vlan vlan-id]
Syntax Description
Command Default No VLANs are mapped to any MST instance (all VLANs are mapped to the CIST instance).
Command Modes MST configuration mode
Command History
Usage Guidelines The VLAN identifier 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 to or
removed from the existing instances.
Any unmapped VLAN is mapped to the CIST instance.
Caution When you change the VLAN-to-MSTI mapping, the system restarts MST.
Examples This example shows how to map a range of VLANs to MSTI 4:
switch(config)# spanning-tree mst configuration
switch(config-mst)# instance 4 vlan 100-200
instance-id Instances to which the specified VLANs are mapped; the range of valid
values is from 0 to 4094.
vlan vlan-id Number of the VLANs that you are mapping to the specified MSTI; the
range of valid values is from 1 to 4094.
Release Modification
4.0(0)N1(1a) This command was introduced.