C613-50631-01 Rev A Command Reference for IE340 Series 753
AlliedWare Plus™ Operating System - Version 5.5.3-0.x
SPANNING TREE COMMANDS
SPANNING
-TREE MST INSTANCE RESTRICTED-ROLE
spanning-tree mst instance restricted-role
Overview Use this command in Interface Configuration mode for a switch port interface only
to enable the restricted role for an MSTI (Multiple Spanning Tree Instance) on a
switch port. Configuring the restricted role for an MSTI on a switch port prevents
the switch port from becoming the root port in a spanning tree topology.
Use the no variant of this command to disable the restricted role for an MSTI on a
switch port. Removing the restricted role for an MSTI on a switch port allows the
switch port to become the root port in a spanning tree topology.
Syntax
spanning-tree mst instance <instance-id> restricted-role
no spanning-tree mst instance <instance-id> restricted-role
Default The restricted role for an MSTI instance on a switch port is disabled by default.
Mode Interface Configuration mode for a switch port interface only.
Usage notes The root port is the port providing the best path from the bridge to the root bridge.
Use this command to disable a port from becoming a root port. Use the no variant
of this command to enable a port to become a root port. See the STP Feature
Overview and Configuration Guide for root port information.
Examples To prevent a switch port from becoming the root port, use the commands:
awplus# configure terminal
awplus(config)# interface port1.0.2
awplus(config-if)# spanning-tree mst instance 3 restricted-role
To stop preventing the switch port from becoming the root port, use the
commands:
awplus# configure terminal
awplus(config)# interface port1.0.2
awplus(config-if)# no spanning-tree mst instance 3
restricted-role
Parameter Description
<instance-id> Specify an MSTP instance in the range 1-15. The MST instance must
have already been created using the instance vlan (MSTP)
command.
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