Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 544)

Spanning Tree Commands
Software Reference for x310 Series Switches
19.54 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
spanning-tree mst instance restricted-role
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 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
Spanning tree operation for root
port information.
Examples
Related Commands instance vlan (MSTP)
spanning-tree priority (port priority)
spanning-tree mst instance
spanning-tree mst instance path-cost
spanning-tree mst instance restricted-tcn
Parameter Description
<instance-id> <1-15> Specify the MST instance ID. The MST instance must have
already been created using the
instance vlan (MSTP) command.
awplus# configure terminal
awplus(config)# interface port1.0.2
awplus(config-if)# spanning-tree mst instance 3
restricted-role
awplus# configure terminal
awplus(config)# interface port1.0.2
awplus(config-if)# no spanning-tree mst instance 3
restricted-role