Reference Guide

MST commands
instance
Configures MST instances and one or multiple VLANs mapped to the MST instance.
Syntax
instance instance-number {vlan vlan-range}
Parameters
● instance — Enter an MST instance value (0 to 63).
● vlan range — Enter a VLAN range value (1 to 4093).
Default Not configured
Command Mode MULTIPLE-SPANNING-TREE
Usage
Information
By default, all VLANs map to MST instance zero (0) unless you are using the vlan range command to
map the VLANs to a non-zero instance. The no version of this command removes all the instance related
configuration.
Example
OS10(conf-mst)# instance 1 vlan 2-10
OS10(conf-mst)# instance 2 vlan 11-20
OS10(conf-mst)# instance 3 vlan 21-30
Supported
Releases
10.2.0E or later
name
Assigns a name to the MST region.
Syntax
name region-name
Parameters region-name — Enter a name for an MST region (up to 32 characters).
Default System MAC address
Command Mode MULTIPLE-SPANNING-TREE
Usage
Information
By default, MSTP assigns system MAC as the region name. Two MST devices within the same region
must share the same region name, including matching case.
Example
OS10(conf-mst)# name my-mst-region
Supported
Releases
10.2.0E or later
revision
Configures a revision number for the MSTP configuration.
Syntax
revision number
Parameters number — Enter a revision number for the MSTP configuration (0 to 65535).
Default 0
Command Mode MULTIPLE-SPANNING-TREE
Usage
Information
To have a bridge in the same MST region as another, the default values for the revision number must
match on all Dell hardware devices. If there are non-Dell devices, ensure the revision number value
matches on all the devices (see Non-Dell Hardware).
Example
OS10(conf-mst)# revision 10
204 Layer 2