HP ProCurve Series 3400cl Release Notes page 106

Enhancements
Release M.10.22 Enhancements
[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.
ProCurve(config)# show loop-protect 1-4
Status and Counters - Loop Protection Information
Transmit Interval (sec)
Port Disable Timer (sec) : 5
Loop Detected Trap
Loop
Port Protection
---- ----------- --------- ---------- ---------------- ------------ --------
1 Yes
2 Yes
3 Yes
4 Yes
Figure 28. Example of Show Loop Protect Display
96
: 5
: Enabled
Loop Loop
Detected Count
No 0
No 0
No 0
No 0
Time Rx
Since Last Loop Action
send-disable Up
send-disable Up
send-disable Up
send-disable Up
Port
Status