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H3C Loopback Detection Feature Manual

Release 2107

2.1.3 loopback-detection interface-list enable

Syntax

loopback-detection interface-list enable

undo loopback-detection interface-list enable

View

System view

Parameter

interface-list: Ethernet port list, in the form of interface-list = { interface-type

interface-number [ to interface-type interface-number ] } &<1-10>, where

interface-type is the port type, and interface-number is the port number.

Keyword to is used to specify a range of ports. The port number after to must be

equal to or greater than that before to.

&<1-10> means that you can specify up to 10 ports or port ranges.

Description

Use the loopback-detection interface-list enable command to enable the loopback

detection function on a range of ports.

Use the undo loopback-detection interface-list enable command to disable the

loopback detection function on a range of ports.

By default, the loopback detection function is enabled on ports if the device boots with

the default configuration file (config.def); if the device boots with null configuration, this

function is disabled.

At present, you can configure the loopback detection for ports in bulk on the S3100-EI

series (except the S3100-EPON-EI series) switches and the E126A switch only. These

switches are all shipped with a default configuration file (config.def).

Example

# Enable the loopback detection function on ports Ethernet 1/0/1 through Ethernet

1/0/4.

<H3C> system-view

System View: return to User View with Ctrl+Z.

[H3C] loopback-detection enable

[H3C] loopback-detection Ethernet 1/0/1 to Ethernet 1/0/4 enable

Chapter 2 Loopback Detection Configuration

2-4

Commands