S
PANNING

T

REE

C

OMMANDS

3-123

Example
Related Commands
spanning-tree port-priority (3-123)

spanning-tree port-priority

Use this command to configure the priority for the specified
interface. Use the no form to restore the default.
Syntax
spanning-tree port-priority priority
no spanning-tree port-priority
priority - The 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 Spanning Tree Protocol. 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.
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree cost 50
Console(config-if)#
b_mgmt.book Page 123 Tuesday, July 8, 2003 5:24 PM