Spanning Tree Commands 533
User Guidelines
Before mapping VLANs to an instance use the spanning-tree mst enable
command to enable the instance.
All VLANs that are not explicitly mapped to an MST instance are mapped to
the common and internal spanning tree (CIST) instance (instance 0) and
cannot be unmapped from the CIST.
For two or more switches to be in the same MST region, they must have the
same VLAN mapping, the same configuration revision number, and the same
name.
Example
The following example maps VLANs 10-20 to MST instance 1.
console(config)#spanning-tree mst configuration
console(config-mst)#instance 1 add vlan 10-20
name (mst)
Use the name command in MST mode to define the configuration name. To
return to the default setting, use the no form of this command.
Syntax
name
string
•
string — Case sensitive
MST configuration name. (Range: 1-32
characters)
Default Configuration
Bridge address.
Command Mode
MST mode
User Guidelines
This command has no user guidelines.
