User guide

Brocade 6910 Ethernet Access Switch Configuration Guide 353
53-1002581-01
Spanning Tree Commands
18
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• When enabled, BPDUs are flooded to all other ports on the switch or to all other ports within
the receiving port’s native VLAN as specified by the spanning-tree system-bpdu-flooding
command.
• The spanning-tree system-bpdu-flooding command has no effect if BPDU flooding is disabled
on a port by the spanning-tree port-bpdu-flooding command.
Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree port-bpdu-flooding
Console(config-if)#
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
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree port-priority 0
Related Commands
spanning-tree cost (346)