ECS4660-28F_Management Guide-R03

C HAPTER 38 | Spanning Tree Commands
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spanning-tree
tc-prop-stop
This command stops the propagation of topology change notifications
(TCN). Use the no form to allow propagation of TCN messages.
SYNTAX
[no] spanning-tree tc-prop-stop
DEFAULT SETTING
Disabled
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: 1-28)
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.