HP ProCurve J8766A Release Note page 68

Enhancements
Release L.10.20 Enhancements
To enable loop protection, enter this command:
ProCurve(config)# loop-protect <port-list>
Syntax: [no] loop-protect <port-list> [receiver-action <send-disable | no-disable> |]
[transmit-interval <1-10>] | [disable-timer <0-604800>] |
[trap <loop-detected>]
Allows you to configure per-port loop protection on the switch.
[receiver-action <send-disable | no-disable>]
Sets the action to be taken when a loop is detected on the port. The port that received
the loop protection packet determines what action is taken. If send-disable is
configured, the port that transmitted the packet is disabled. If no-disable is
configured, the port is not disabled.
Default: send-disable
[trap <loop-detected>]
Allows you to configure loop protection traps The "loop-detected" trap indicates
that a loop was detected on a port.
[disable-timer <0-604800>]
How long (in seconds) a port is disabled when a loop has been detected. A value
of zero disables the auto re-enable functionality.
Default: Timer is disabled
[transmit-interval <1-10>]
Allows you to configure the time in seconds between the transmission of loop
protection packets.
Default: 5 seconds
To display information about ports with loop protection, enter this command.
Syntax: show loop-protect <port-list>
Displays the loop protection status. If no ports are specified, the information is
displayed only for the ports that have loop protection enabled.
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