Spanning-Tree Loopback-Detection; Spanning-Tree Loopback-Detection Release-Mode - Samsung iES4028F Management Manual

4
Command Line Interface

spanning-tree loopback-detection

This command enables the detection and response to Spanning Tree loopback
BPDU packets on the port. Use the no form to disable this feature.
Syntax
spanning-tree loopback-detection
no spanning-tree loopback-detection
Default Setting
Enabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Command Usage
• If Port Loopback Detection is not enabled and a port receives it's own BPDU, then
the port will drop the loopback BPDU according to IEEE Standard 802.1w-2001
9.3.4 (Note 1).
•
Port Loopback Detection will not be active if Spanning Tree is disabled on the
.
switch
Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree loopback-detection
Console(config-if)#

spanning-tree loopback-detection release-mode

This command configures the release mode for a port that was placed in the
discarding state because a loopback BPDU was received. Use the no form to
restore the default.
Syntax
spanning-tree loopback-detection release-mode {auto | manual}
no spanning-tree loopback-detection release-mode
• auto - Allows a port to automatically be released from the discarding state
when the loopback state ends.
• manual - The port can only be released from the discarding state manually.
Default Setting
auto
Command Mode
Interface Configuration (Ethernet, Port Channel)
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