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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
udld port
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 an port:
Switch(config)#
interface gigabitethernet6/0/1
Switch(config-if)#
udld port
This example shows how to disable UDLD on a fiber-optic interface despite the setting of the
udld
global configuration command:
Switch(config)#
interface gigabitethernet6/0/1
Switch(config-if)#
no
udld port
You can verify your settings by entering the
show running-config
or the
show udld
interface
privileged
EXEC command.
Related Commands
Command
Description
show running-config
Displays the operating configuration. For syntax information, use this
link to the Cisco IOS Release 12.2 Command Reference listing page:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/prod_com
mand_reference_list.html
Select the
Cisco IOS Commands Master List, Release 12.2
to
navigate to the command.
show udld
Displays UDLD administrative and operational status for all ports or
the specified port.
udld
Enables aggressive or normal mode in UDLD or sets the configurable
message timer time.
udld reset
Resets all interfaces shut down by UDLD and permits traffic to again
pass through.
