CLI Reference Guide-R04

Chapter 20 | Spanning Tree Commands
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Command Usage
When this command is enabled on an interface, topology change information
originating from the interface will still be propagated.
This command should not be used on an interface which is purposely configured in
a ring topology.
Example
Console(config)#interface ethernet 1/1
Console(config-if)#spanning-tree tc-prop-stop
Console(config-if)#
spanning-tree
loopback-detection
release
This command manually releases a port placed in discarding state by loopback-
detection.
Syntax
spanning-tree loopback-detection release interface
interface
ethernet unit/port
unit - Unit identifier. (Range: 1)
port - Port number. (Range: 1-28)
port-channel channel-id (Range: 1-26)
Command Mode
Privileged Exec
Command Usage
Use this command to release an interface from discarding state if loopback
detection release mode is set to “manual” by the spanning-tree loopback-detection
release-mode command and BPDU loopback occurs.
Example
Console#spanning-tree loopback-detection release ethernet 1/1
Console#