Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
udld reset
udld reset
To reset all the UDLD ports in the shutdown state (that is, errdisabled by UDLD), use the udld reset
priviledged EXEC command.
udld reset
Syntax Description This command has no arguments or keywords.
Defaults This command has no default settings.
Command Modes Privileged EXEC
Command History
Usage Guidelines If the interface configuration is still enabled for UDLD, those ports will begin to run UDLD again and
may shut down if the reason for the shutdown has not been resolved.
The udld reset command permits the traffic to flow on the ports again. Other features, operate normally
if enabled, such as STP, PAgP, and DTP.
Examples This example shows how to reset all the ports that are shut down by UDLD:
Switch# udld reset
Switch#
Related Commands
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.
Command Description
show udld Displays the administrative and operational UDLD status.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E