DELL PC6224F User Manual

Spanning Tree Commands

Use the spanning-tree auto-portfast command to set the port to auto portfast 

mode. This enables the port to become a portfast port if it does not see any 

BPDUs for 3 seconds. Use the “no” form of this command to disable auto 

portfast mode.

Auto portfast mode is disabled by default.

Interface Configuration (Ethernet, Port Channel) mode

There are no user guidelines for this command.

The following example enables spanning-tree functionality on ethernet 

interface 4/g1.

console#config

console(config)#interface ethernet 4/g1

console(config-if-4/g1)#spanning-tree auto-portfast

The spanning-tree bpdu flooding command allows flooding of BPDUs 

received on non-spanning-tree ports to all other non-spanning-tree ports. Use 

the “no” form of the command to disable flooding.