Reference Guide

If the you specify cost, this command sets the path cost for this port within a multiple spanning tree
instance or the common and internal spanning tree instance, depending on the mstid parameter, to the
default value, that is, a path cost value based on the Link Speed.
If you specify port-priority, this command sets the priority for this port within a specific multiple
spanning tree instance or the common and internal spanning tree instance, depending on the mstid
parameter, to the default value.
Format no spanning-tree mst mstid {cost | port-priority}
Mode Interface Config
spanning-tree mst instance
This command adds a multiple spanning tree instance to the switch. The parameter mstid is a number
within a range of 1 to 4094, that corresponds to the new instance ID to be added. The maximum
number of multiple instances supported by the switch is 4.
Default None
Format spanning-tree mst instance mstid
Mode Global Config
no spanning-tree mst instance
This command removes a multiple spanning tree instance from the switch and reallocates all VLANs
allocated to the deleted instance to the common and internal spanning tree. The parameter mstid is a
number that corresponds to the desired existing multiple spanning tree instance to be removed.
Format
no spanning-tree mst instance mstid
Mode Global Config
spanning-tree mst priority
This command sets the bridge priority for a specific multiple spanning tree instance. The parameter
mstid is a number that corresponds to the desired existing multiple spanning tree instance. The priority
value is a number within a range of 0 to 4094.
If you specify 0 (defined as the default CIST ID) as the mstid, this command sets the Bridge Priority
parameter to a new value for the common and internal spanning tree. The bridge priority value is a
number within a range of 0 to 4094. The twelve least significant bits are masked according to the 802.1s
specification. This causes the priority to be rounded down to the next lower valid priority.
Default
32768
Format spanning-tree mst priority mstid 0-4094
Mode Global Config
Switching Commands
ExtremeSwitching 200 Series: Command Reference Guide for version 01 .02.04.0007 294