Feature Udld - Cisco Nexus 5500 Series Command Reference Manual

Chapter F Commands

feature udld

To enable the Cisco-proprietary Unidirectional Link Detection (UDLD) protocol, which allows ports
that are connected through fiber optics or copper Ethernet cables to monitor the physical configuration
of the cables and detect when a unidirectional link exists, use the feature udld command. To disable
UDLD on the switch, use the no form of this command.
Syntax Description This command has no arguments or keywords.
Command Default
UDLD is disabled.
Command Modes
Global configuration mode
Command History Release
5.2(1)N1(1)
Examples
This example shows how to enable UDLD on the switch:
switch(config)# feature udld
Related Commands Command
show udld
show feature
OL-27880-02
feature udld
no feature udld
Modification
This command was introduced.
Description
Displays the administrative and operational UDLD status.
Displays whether or not UDLD is enabled on the switch.
Cisco Nexus 5500 Series NX-OS Layer 2 Interfaces Command Reference
feature udld
161