loopback-detection control enable

Syntax

loopback-detection control enable

undo loopback-detection control enable

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

None

Description

Use loopback-detection control enable to enable loopback detection control on trunk or hybrid ports.

Use undo loopback-detection control enable to restore the default.

By default, loopback detection control is disabled on trunk and hybrid ports.

When a hybrid or trunk port detects a loop condition, it sends traps, whether loopback detection control is enabled or not. However, only after loopback detection control is enabled will the port perform the protective action configured with the loopback-detection action command.

This command is not applicable to access ports.

Examples

# Enable loopback detection control on the trunk port Ethernet 1/0/1.

<Sysname> system-view
[Sysname] loopback-detection enable
[Sysname] interface ethernet 1/0/1
[Sysname-Ethernet1/0/1] port link-type trunk
[Sysname-Ethernet1/0/1] loopback-detection enable
[Sysname-Ethernet1/0/1] loopback-detection control enable