Cisco 3750 - Catalyst EMI Switch, Command Reference Manual

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Catalyst 3750 Switch Command Reference
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Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
udld
You can use these commands to reset an interface shut down by UDLD:
• The udld reset privileged EXEC command to reset all interfaces shut down by UDLD
•
The shutdown and no shutdown interface configuration commands
• The no udld enable global configuration command followed by the udld { aggressive | enable }
global configuration command to re-enable UDLD globally
•
The no udld port interface configuration command followed by the udld port or udld port
aggressive interface configuration command to re-enable UDLD on the specified interface
• The errdisable recovery cause udld and errdisable recovery interval interval global
configuration commands to automatically recover from the UDLD error-disabled state
Examples This example shows how to enable UDLD on all fiber-optic interfaces:
Switch(config)# udld enable
You can verify your setting by entering the show udld privileged EXEC command .
Related Commands Command Description
show udld Displays UDLD administrative and operational status for all ports
or the specified port.
udld port Enables UDLD on an individual interface or prevents a fiber-optic
interface from being enabled by the
udld global configuration
command.
udld reset Resets all interfaces shut down by UDLD and permits traffic to
again pass through.