Spanning-Tree Loopback-Detection Trap - Samsung iES4028F Management Manual

Command Usage
• If the port is configured for automatic loopback release, then the port will only
be returned to the forwarding state if one of the following conditions is
satisfied:
- The port receives any other BPDU except for it's own, or;
- The port's link status changes to link down and then link up again, or;
- The port ceases to receive it's own BPDUs in a forward delay interval.
• 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.
• When configured for manual release mode, then a link down / up event will not
release the port from the discarding state.
Example
Console(config)#interface ethernet 1/5
Console(config-if)#spanning-tree loopback-detection release-mode manual
Console(config-if)#

spanning-tree loopback-detection trap

This command enables SNMP trap notification for Spanning Tree loopback BPDU
detections. Use the no form to restore the default.
Syntax
spanning-tree loopback-detection trap
no spanning-tree loopback-detection trap
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
Example
Console(config)#interface ethernet ethernet 1/5
Console(config-if)#spanning-tree loopback-detection trap
Console(config-if)#
Spanning Tree Commands
4
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