Displaying And Maintaining Loop Detection; Loop Detection Configuration Example; Network Requirements; Configuration Procedure - H3C S5560S-EI Series Configuration Manual

Step
1.
Enter system view.
2.
Set the loop detection
interval.

Displaying and maintaining loop detection

Execute display commands in any view.
Task
Display the loop detection configuration and status.

Loop detection configuration example

Network requirements

As shown in
•
Device A generates a log as a notification.
•
Device A automatically shuts down the port on which a loop is detected.
Figure 44 Network diagram

Configuration procedure

1.
Configure Device A:
# Create VLAN 100, and globally enable loop detection for the VLAN.
<DeviceA> system-view
[DeviceA] vlan 100
[DeviceA-vlan100] quit
[DeviceA] loopback-detection global enable vlan 100
Figure 44, configure loop detection on Device A to meet the following requirements:
Device A
GE1/0/1
Device B
VLAN 100
Command
system-view
loopback-detection
interval-time interval
Command
display loopback-detection
GE1/0/2
Device C
122
Remarks
N/A
The default setting is 30 seconds.