Cisco 7609 Configuration Manual page 250

Cisco ios software configuration guide—12.1e

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Enabling Loop Guard

This example shows how to verify the configuration:

Router# show spanning-tree interface fastEthernet 4/4 detail

Port 196 (FastEthernet4/4) of VLAN0010 is forwarding

Port path cost 1000, Port priority 160, Port Identifier 160.196.

Designated root has priority 32768, address 00d0.00b8.140a

Designated bridge has priority 32768, address 00d0.00b8.140a

Designated port id is 160.196, designated path cost 0

Timers:message age 0, forward delay 0, hold 0

Number of transitions to forwarding state:1

The port is in the portfast mode by portfast trunk configuration

Link type is point-to-point by default

Bpdu filter is enabled

Loop guard is enabled on the port

BPDU:sent 0, received 0

Cisco 7600 Series Router Cisco IOS Software Configuration Guide—12.1E

Configuring Optional STP Features

Troubleshooting