Huawei Quidway S3900 Series Command Manual

Command Manual – Port Basic Configuration
Quidway S3900 Series Ethernet Switches-Release 1510
Chapter 1 Port Basic Configuration
Commands
Huawei Technologies Proprietary
1-20
1.1.19 loopback-detection enable
Syntax
loopback-detection enable
undo loopback-detection enable
View
System view, Ethernet port view
Parameter
None
Description
Use the loopback-detection enable command to enable the loopback detection
feature on ports to detect whether external loopback occurs on a port.
Use the undo loopback-detection enable command to disable the loopback
detection feature on port.
z If loopback is found on an access port, the switch will set the port to a controlled
working state.
z For a trunk or hybrid port, the loopback detection control feature can be
implemented by using this command and the loopback-detection control
enable command together.
The loopback detection feature takes effect on a specified port only when the loopback
detection feature is enabled in both system view and the specified port view.
By default, the loopback detection feature is disabled on any port.
Related command: loopback-detection control enable.
Example
# Enable the loopback detection feature on Ethernet1/0/1.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] loopback-detection enable
[Quidway] interface ethernet 1/0/1
[Quidway-Ethernet1/0/1] loopback-detection enable
[Quidway-Ethernet1/0/1]
1.1.20 loopback-detection interval-time
Syntax
loopback-detection interval-time time

Huawei Quidway S3900 Series Specifications

General

Brand	Huawei
Model	Quidway S3900 Series
Category	Switch
Language	English