Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 540)

Spanning Tree Commands
Software Reference for x310 Series Switches
19.50 AlliedWare Plus TM Operating System - Version 5.4.4C C613-50046-01 REV A
spanning-tree mst instance
Use this command in Interface Configuration mode to assign a Multiple Spanning Tree
instance (MSTI) to a switch port or channel group.
Note that ports are automatically configured to send and receive spanning-tree
information for the associated MSTI when VLANs are assigned to MSTIs using the
instance
vlan (MSTP) command.
Use the no variant of this command in Interface Configuration mode to remove the MSTI
from the specified switch port or channel group.
Syntax spanning-tree mst instance <instance-id>
no spanning-tree mst instance <instance-id>
Default A port automatically becomes a member of an MSTI when it is assigned to a VLAN.
Mode Interface Configuration mode for a switch port or channel group.
Usage You can disable automatic configuration of member ports of a VLAN to an associated MSTI
by using a no spanning-tree mst instance command to remove the member port from
the MSTI. Use the spanning-tree mst instance command to add a VLAN member port
back to the MSTI.
Examples
Related Commands instance vlan (MSTP)
spanning-tree mst instance path-cost
spanning-tree mst instance priority
spanning-tree mst instance restricted-role
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
awplus# configure terminal
awplus(config)# interface port1.0.2
awplus(config-if)# no spanning-tree mst instance 3