Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 43)

Multi-Service IronWare Switching Configuration Guide 13
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Port loop detection
1
Displaying loop-detection information
Use the show loop-detection command to display the loop detection status.
Brocade(config-vlan-100)#show loop-detection
loop detection packets interval: 10 (unit 100 msec)
loop detection disable duration: 10 (In minutes, 0 means permanently disabled)
Ports mode loop detection
=========================
port-num disable-count
1/12 0
1/11 0
Vlan mode loop detection
========================
vlan-id disable-count
100 2
10 0
200 0
Ports disabled by loop detection
================================
port age(minutes) disable cause
1/11 1 Disabled by VLAN: 100 loopdetect 1/11
1/12 1 Disabled by VLAN: 100 loopdetect 1/12
Syntax: show loop-detection
TABLE 4 Port loop detection output description
Syslog message
The following message is logged when a port is disabled due to loop detection. This message will
also appear on the console.
SYSLOG: Jan 27 18:16:42:<14>Jan 27 18:16:42 LOOP_DETECT LOG: Port Down 1/10 -
Loop detected on VLAN: 150
Parameter Description
loop detection packets interval Specifies how often a test packet is sent on a port.
loop detection disable duration Specifies the device to automatically re-enable ports that were disabled for the
configured duration because of a loop detection
ports mode The VLAN or port that port loop detection was configured on.
loop detection disabled ports The ports that are disabled by port loop detection.
•
port - The port number that was disabled by port loop detection.
•
age - The time duration after which port will be automatically re-enabled. If
the age is “0”, it means port is not configured to be automatically
re-enabled.
•
disable cause - specifies all the ports that were disabled by loop detection
(either strict or loose).