udld enable

Enables the Unidirectional Link Detection (UDLD) protocol on an interface.

Syntax

udld enable
no udld enable

Command Default

Disabled on interfaces by default.

Modes

Interface configuration mode

Usage Guidelines

Use no udld enable to unblock the interface if it has been blocked by the UDLD protocol.

Examples

The following example enable UDLD on a specific Ethernet interface.
device# configure terminal
device(config)# interface ethernet 0/1
device(conf-if-eth-0/1)# udld enable