Accton Technology ES3528M-SFP manual Spanning-tree mst port-priority

4 Command Line Interface

•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.

•Use the no spanning-tree mst cost command to specify auto-configuration mode.

•Path cost takes precedence over interface priority.

Example

Console(config)#interface ethernet ethernet 1/5

Console(config-if)#spanning-tree mst 1 cost 50

Console(config-if)#

Related Commands

spanning-tree mst port-priority(4-234)

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, Port Channel)

Command Usage

•This command defines the priority for the use of an interface in the multiple spanning-tree. If the path cost for all interfaces on a switch are the same, the interface with the highest priority (that is, lowest value) will be configured as an active link in the spanning tree.

•Where more than one interface is assigned the highest priority, the interface with lowest numeric identifier will be enabled.

Example

Console(config)#interface ethernet ethernet 1/5

Console(config-if)#spanning-tree mst 1 port-priority 0

Console(config-if)#

Related Commands

4-234