3Com Switch 8800 Family Command Reference Guide

1048 CHAPTER 64: PORT LOOPBACK DETECTION COMMANDS
<SW8800> system-view
[SW8800] interface Ethernet 2/1/1
[3Com-GigabitEthernet2/1/1] loopback-detection disable
display
loopback-detection
Syntax
display loopback-detection
View
Ethernet port view
Parameter
None
Description
Use the display loopback-detection command to display whether the port
loopback detection function is enabled or not. If the function is enabled, the
command will display the interval for detections, the VLANs enabled with
detection function, the existing loop, and the ports which are shutdown for loop.
Example
# Display whether the port loopback detection function is enabled or not.
<SW8800> display loopback-detection
Loopback-detection is running on!
Detection interval time is 60 seconds!
Following vlans enable loopback-detection:
1
Following ports are detected for loop:
GigabitEthernet2/1/1
Following ports are shutdown for loop:
NULL
Tabl e 154 Description on the fields of the display loopback-detection command
Filed Description
Loopback-detection is running on! Port loopback detection function is enabled.
Detection interval time is 60 seconds Interval time for detection is 60 seconds.
Following ports are detected for loop: Ports on which loop exists
Following ports are shutdown for loop: Ports which are shutdown for loop