Dell POWEREDGE M1000E - Manual (Page 702)

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Cisco Catalyst Blade Switch 3120 for HP Command Reference
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Chapter 2 Cisco Catalyst Blade Switch 3120 for HP Cisco IOS Commands
show udld
Related Commands Command Description
udld Enables aggressive or normal mode in UDLD or sets the
configurable message timer time.
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 shutdown by UDLD and permits traffic to begin
passing through them again.