SMC Networks SMC7724M/VSW manual Bridge-group portfast, Disabled

SPANNING TREE COMMANDS

bridge-group portfast

Use this command to set a port to fast forwarding. Use the no form to disable fast forwarding.

Syntax

bridge-group bridge-groupportfast no bridge-group bridge-groupportfast

bridge-group- Bridge group index (bridge 1.)

Default Setting

Disabled

Command Mode

Interface Configuration (Ethernet, Port Channel)

Command Usage

•This command is used to enable/disable the fast spanning-tree mode for the selected port. In this mode, ports skip the Blocked, Listening and Learning states and proceed straight to Forwarding.

•Since end-nodes cannot cause forwarding loops, they can be passed through the spanning tree state changes more quickly than allowed by standard convergence time. Fast forwarding can achieve quicker convergence for end-node workstations and servers, and also overcome other STA related timeout problems. (Remember that fast forwarding should only be enabled for ports connected to an end-node device.)

Example

Console(config)#interface ethernet 1/5

Console(config-if)#bridge-group 1 portfast

Console(config-if)#

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