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4-224
Command Usage
• Each spanning-tree instance is associated with a unique set of VLAN
IDs.
• This command is used by the multiple spanning-tree algorithm to
determine the best path between devices. Therefore, lower values
should be assigned to interfaces attached to faster media, and higher
values assigned to interfaces with slower media.
• Path cost takes precedence over interface priority.
Example
Related Commands
spanning-tree mst port-priority (4-224)
spanning-tree mst port-priority
This command configures the interface priority on a spanning instance in
the Multiple Spanning Tree. Use the no form to restore the default.
Syntax
spanning-tree mst instance_id port-priority priority
no spanning-tree mst instance_id port-priority
• instance_id - Instance identifier of the spanning tree.
(Range: 0-4094, no leading zeroes)
• priority - Priority for an interface. (Range: 0-240 in steps of 16)
Default Setting
128
Command Mode
Interface Configuration (Ethernet Ports 1-8, Port Channel)
Console(config)#interface ethernet ethernet 1/5
Console(config-if)#spanning-tree mst 1 cost 50
Console(config-if)#