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9-5
Cisco ASR 1000 Series Aggregation Services Routers Software Configuration Guide
OL-16506-17
Chapter 9 UniDirectional Link Detection (UDLD) Protocol
How to Configure the UDLD Protocol
3. interface type slot/port
4. udld port [aggressive]
DETAILED STEPS
Command Purpose
Step 1
enable
Example:
Router> enable
Enables the privileged EXEC mode.
Enter your password, if prompted.
Step 2
configure terminal
Example:
Router# configure terminal
Enters the global configuration mode.
Step 3
interface type slot/port
Example:
Router(config)# interface gigabitethernet2/2
Selects the LAN port to configure.
Step 4
udld port [aggressive]
no udld port [aggressive]
Example:
Router(config)# udld port aggressive
Enables UDLD on a specific LAN port. Enter the
aggressive keyword to enable the aggressive mode. On a
fiber-optic LAN port, this command overrides the udld
enable global configuration command setting.
Use the no form of this command to disable the UDLD
on a nonfiber-optic LAN port.
On fiber-optic LAN ports, the no udld port command
reverts the LAN port configuration to the udld enable
global configuration command setting.