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spanning-tree port-priority
51-13
51
spanning-tree port-priority
This command configures 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 a port. (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 a port in the Spanning Tree
Algorithm. If the path cost for all ports on a switch are the same, the port with
the highest priority (that is, lowest value) will be configured as an active link in
the spanning tree.
• Where more than one port is assigned the highest priority, the port with lowest
numeric identifier will be enabled.
Example
Related Commands
spanning-tree cost (51-12)
spanning-tree edge-port
This command specifies an interface as an edge port. Use the no form to restore the
default.
Syntax
[no] spanning-tree edge-port
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• You can enable this option if an interface is attached to a LAN segment that
is at the end of a bridged LAN or to an end node. Since end nodes cannot
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree port-priority 0