Operating Notes; Viewing Loop Protection Status; Displaying Loop Protection Status In Port Mode - HP 3500 Series Advanced Traffic Management Manual

Multiple Instance Spanning-Tree Operation
Loop Protection
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HP Switch(config)# loop-protect mode port
Any Loop Protect enabled VLAN will be deleted. Do you want to
continue [Y/N]? n
Figure 3-35. Example of Changing Modes for Loop Protection

Operating Notes

The receiver-action option can be configured on a per-port basis and can
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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.
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Regardless of how the receiver-action and trap options are configured, all
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detected loops will be logged in the switch's event log.
The no loop-protect <port> command will not remove a receive-action
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configuration line from the running configuration unless this option is set
to receive-action send-disable.
If loop-protect is enabled in port mode, it cannot also be enabled in VLAN
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mode, and vice-versa.

Viewing Loop Protection Status

Displaying Loop Protection Status in Port Mode

To display information about ports with loop protection enabled, enter the
show loop-protect command.
Syntax: show loop-protect <port-list>
Displays the loop protection status for ports. If no ports are
specified, the information is displayed only for the ports that
have loop protection enabled.