Dell Catalyst 3130 Command Reference Manual page 702

show udld
Related Commands Command
udld
udld port
udld reset
Cisco Catalyst Blade Switch 3120 for HP Command Reference
2-672
Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands
Description
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
command.
Resets all interfaces shutdown by UDLD and permits traffic to begin
passing through them again.
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