Spanning-Tree Mst Instance Priority - Allied Telesis SwitchBlade x908 Series Software Reference Manual

Spanning Tree Commands

spanning-tree mst instance priority

Use this command to set the port priority for an MST instance (MSTI).
This sets the value of the priority field contained in the port identifier. The MST algorithm uses
the port priority when determining the root port for the switch in the MSTI. The port with the
lowest value is considered to have the highest priority and will be chosen as root port over a
port - equivalent in all other aspects - but with a higher priority value.
Use the no parameter with this command to restore the default priority value.
Syntax spanning-tree mst instance <instance-id> priority <priority>
no spanning-tree mst instance priority <instance-id>
Parameter
<instance-id>
<priority>
Interface mode
Mode
The default value is 128.
Default
Examples
awplus(config-if)#
spanning-tree priority (port priority)
Related Commands
19.38
Description
Specify the identifier.
This must be a multiple of 16 and within the range 0 to 240.
A lower priority indicates greater likelihood of the port becoming the root
port.
awplus# configure terminal
awplus(config)# interface port1.2.3
spanning-tree mst instance 3 priority 121
Software Reference for SwitchBlade® x908, x900 and x600 Series Switches
TM
AlliedWare Plus Operating System - Software Version 5.3.1 C613-50007-01 REV B