HP 6120G/XG HP ProCurve Series 6120 Blade Switches Advanced Traffic Management - Page 171

Multiple Instance Spanning-Tree Operation Loop Protection Notes ■ The receiver-action option can be configured on a per-port basis and can only be enabled after loop protection has been enabled on the port. All other configuration options (disable-timer, trap loop-detected, and transmit interval) are global. ■ The trap option refers to a SNMP trap. ■ Regardless of how the receiver-action and trap options are configured, all detected loops will be logged in the switch's event log. ■ The no loop-protect command will not remove a receive-action configuration line from the running configuration unless this option is set to receive-action send-disable. Viewing Loop Protection Status To display information about ports with loop protection enabled, enter the show loop-protect command. Syntax: show loop-protect Displays the loop protection status. If no ports are specified, the information is displayed only for the ports that have loop protection enabled. For example: ProCurve(config)# show loop-protect 1-4 Status and Counters - Loop Protection Information Transmit Interval (sec) : 5 Port Disable Timer (sec) : 5 Loop Detected Trap : Enabled Loop Loop Loop Time Rx Port Port Protection Detected Count Since Last Loop Action Status 1 Yes No 0 send-disable Up 2 Yes No 0 send-disable Up 3 Yes No 0 send-disable Up 4 Yes No 0 send-disable Up Figure 4-30. Example of Show Loop-Protect Display 4-72