Resetting An Interface Shut Down By Udld - Cisco 2950G 24 - Catalyst Switch Software Configuration Manual

Chapter 19 Configuring UDLD
Command
Step 3 udld {aggressive | enable}
Step 4
end
Step 5
show udld interface-id
Step 6 copy running-config startup-config
To disable UDLD on a non-fiber-optic interface, use the no udld enable interface configuration
command.
On fiber-optic interfaces, the no udld enable command reverts the interface configuration to the udld
Note
enable global configuration command setting.
To disable UDLD on a fiber-optic interface, use the udld disable command to revert to the udld enable
global configuration command setting. This command is not supported on non-fiber-optic interfaces.

Resetting an Interface Shut Down by UDLD

Beginning in privileged EXEC mode, follow these steps to reset all interfaces shut down by UDLD:
Command
Step 1 udld reset
Step 2
show udld
Step 3
copy running-config startup-config
You can also bring up the interface by using these commands:
•
•
•
78-14982-01
The shutdown interface configuration command followed by the no shutdown interface
configuration command restarts the disabled interface.
The no udld enable global configuration command re-enables UDLD globally.
The udld disable interface configuration command re-enables UDLD on the specified interface.
Purpose
Specify the UDLD mode of operation:
• aggressive—Enables UDLD in aggressive mode on the specified
interface. For details on the usage guidelines for the aggressive
mode, refer to the command reference guide.
• enable—Enables UDLD in normal mode on the specified
interface. UDLD is disabled by default.
On a fiber-optic interface, this command overrides the udld enable
global configuration command setting.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Purpose
Reset all interfaces shut down by UDLD.
Verify your entries.
(Optional) Save your entries in the configuration file.
Catalyst 2950 Desktop Switch Software Configuration Guide
Configuring UDLD
19-5