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TigerSwitch 10/100/1000 - SMC

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Example<br />

Console(config)#interface ethernet 1/5<br />

Console(config-if)#bridge-group 1 priority 0<br />

Console(config-if)#<br />

bridge-group portfast<br />

SPANNING TREE COMMANDS<br />

Use this command to set a port to fast forwarding. Use the no form to<br />

disable fast forwarding.<br />

Syntax<br />

bridge-group bridge-group portfast<br />

no bridge-group bridge-group portfast<br />

bridge-group - Bridge group index (bridge 1).<br />

Default Setting<br />

Disabled<br />

Command Mode<br />

Interface Configuration (Ethernet, Port Channel)<br />

Command Usage<br />

• This command is used to enable/disable the fast spanning-tree mode<br />

for the selected port. In this mode, ports skip the Blocked, Listening<br />

and Learning states and proceed straight to Forwarding.<br />

• Since end-nodes cannot cause forwarding loops, they can be passed<br />

through the spanning tree state changes more quickly than allowed by<br />

standard convergence time. Fast forwarding can achieve quicker<br />

convergence for end-node workstations and servers, and also<br />

overcome other STA related timeout problems. (Remember that fast<br />

forwarding should only be enabled for ports connected to an end-node<br />

device.)<br />

Example<br />

Console(config)#interface ethernet 1/5<br />

Console(config-if)#bridge-group 1 portfast<br />

Console(config-if)#<br />

3-91

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