Configuring UDLD
Enabling UDLD on Individual LAN Interfaces
With Release 12.1(13)E and later releases, to enable UDLD on individual LAN ports, perform this task:
Command
Step 1
Router(config)# interface type
Step 2
Router(config-if)# udld port [aggressive]
Router(config-if)# no udld port [aggressive]
Step 3
Router# show udld type
1.
type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
With earlier releases, to enable UDLD on individual LAN ports, perform this task:
Command
Step 1
Router(config)# interface type
Step 2
Router(config-if)# udld enable [aggressive]
Router(config-if)# no udld enable [aggressive]
Step 3
Router# show udld type
1.
type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
32-4
1
slot/port
1
slot/number
1
slot/port
1
slot/number
Purpose
Selects the LAN port to configure.
Enables UDLD on a specific LAN port. Enter the
aggressive keyword to enable aggressive mode. On a
fiber-optic LAN port, this command overrides the udld
enable global configuration command setting.
Disables UDLD on a nonfiber-optic LAN port.
On fiber-optic LAN ports, the no udld port
Note
command reverts the LAN port configuration to
the udld enable global configuration command
setting.
Verifies the configuration.
Purpose
Selects the LAN port to configure.
Enables UDLD on a specific LAN port. Enter the
aggressive keyword to enable aggressive mode. On a
fiber-optic LAN port, this command overrides the udld
enable global configuration command setting.
Disables UDLD on a nonfiber-optic LAN port.
On fiber-optic LAN ports, the no udld enable
Note
command reverts the LAN port configuration to
the udld enable global configuration command
setting.
Verifies the configuration.
Chapter 32
Configuring UDLD
78-14099-04