Quick Reference Guide

324 | Spanning Tree (STP) Commands
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If the external-cost token is specified, this command sets the external-path cost for MST instance
“0” (in other words, the CIST instance). The external-path cost is specified as a number in the range of
1 to 200000000.
If the priority token is specified, 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 msti
parameter. The priority value is a number in the range of 0 to 240, in increments of 16.
Default
cost, external-cost: based on link speed; priority: 128
Mode
Interface Config
Command
History
spanning-tree msti instance
This command adds a multiple spanning tree instance to the switch.
Syntax
spanning-tree msti instance mstid
[oe]uspanning-tree msti instance mstid
The instance mstid is a number within a range of 0 to 63, corresponding to the new instance ID to be
added. The maximum number of multiple instances supported by SFTOS is 4.
The no version of 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 instance
mstid is a number that corresponds to the desired existing multiple
spanning tree instance to be removed.
Mode
Global Config
Command
History
spanning-tree msti priority
This command sets the bridge priority for a specific multiple spanning tree instance.
Syntax
spanning-tree msti priority mstid 0–61440
no spanning-tree msti priority mstid
Version 2.5.1
Modified: Revised syntax from
spanning-tree mst mstid {{cost 1-200000000 |
auto} | port-priority 0-240}
Related
Commands
interface Identifies an interface and enters the Interface Config mode.
interface range Defines an interface range and accesses the Interface Range mode
spanning-tree MSTi cost
(LAG)
Associates or disassociates a multiple spanning tree instance with cost to the
selected LAG (port channel)
Version 2.5.1
Modified: Revised syntax from
spanning-tree mst instance mstid