Udld Reset - Cisco Catalyst 2960 Command Reference Manual

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udld reset

Use the udld reset privileged EXEC command to reset all interfaces disabled by the UniDirectional Link

Detection (UDLD) and permit traffic to begin passing through them again (though other features, such

as spanning tree, Port Aggregation Protocol (PAgP), and Dynamic Trunking Protocol (DTP) still have

their normal effects, if enabled).

Syntax Description

This command has no arguments or keywords.

Command Modes

Privileged EXEC

Command History

Usage Guidelines

If the interface configuration is still enabled for UDLD, these ports begin to run UDLD again and are

disabled for the same reason if the problem has not been corrected.

This example shows how to reset all interfaces disabled by UDLD:

Switch# udld reset

1 ports shutdown by UDLD were reset.

You can verify your setting by entering the show udld privileged EXEC command.

Related Commands

show running-config

Catalyst 2960 Switch Command Reference

Modification

This command was introduced.

Displays the running configuration on the switch. For syntax

information, select Cisco IOS Configuration Fundamentals Command

Reference, Release 12.2 > File Management Commands >

Configuration File Management Commands.

Displays UDLD administrative and operational status for all ports or

the specified port.

Enables aggressive or normal mode in UDLD or sets the configurable

message timer time.

Enables UDLD on an individual interface or prevents a fiber-optic

interface from being enabled by the udld global configuration

Chapter 2 Catalyst 2960 Switch Cisco IOS Commands