Chapter 18
| Spanning Tree Commands
– 454 –
Command Mode
Interface Configuration (Ethernet, Port Channel)
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: 1-10/28)
port-channel
channel-id (Range: 1-8)
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#
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