Instance (Mst) - Cisco 220 Series Smart Plus Reference Manual

STP Commands

instance (MST)

instance (MST)
Cisco 220 Series Smart Plus Switches Command Line Interface Reference Guide Release 1.0.0.x
To map VLANs to a Multiple Spanning Tree Protocol (MSTP) instance, use the
instance MST Configuration mode command.
To revert to its default settings, use the no form of this command.
Syntax
instance-id
instance
no instance instance-id
Parameters
instance-id
• —The MSTP instance ID. (Range: 0 to 15)
• vlan vlan-range
range, use a hyphen. To specify a series, use a comma. (Range: 1 to 4094)
Default Configuration
All VLANs are mapped to the Common and Internal Spanning Tree (CIST) instance
(instance 0).
Command Mode
MST Configuration mode
User Guidelines
All VLANs that are not explicitly mapped to an MSTP instance are mapped to the
CIST instance (instance 0) and cannot be unmapped from the CIST.
For two or more devices to be in the same MSTP region, they must have the same
VLAN mapping, the same configuration revision number, and the same name.
Example
The following example maps a range of VLANs to the MSTP instance 1:
switchxxxxxx(config)# spanning-tree mst configuration
switchxxxxxx(config-mst)# instance 1 vlan 10-20
vlan-range
vlan
vlan vlan-range
—Adds a range of VLANs to the MSTP instance. To specify a
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