Chapter 32
Configuring UDLD
Disabling UDLD on Fiber-Optic LAN Interfaces
With Release 12.1(13)E and later releases, to disable UDLD on individual fiber-optic LAN ports,
perform this task:
Command
Step 1
Router(config)# interface type
Step 2
Router(config-if)# udld port disable
Router(config-if)# no udld port disable
Step 3
Router# show udld type
1.
type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
With earlier releases, to disable UDLD on individual fiber-optic LAN ports, perform this task:
Command
Step 1
Router(config)# interface type
Step 2
Router(config-if)# udld disable
Router(config-if)# no udld disable
Step 3
Router# show udld type
1.
type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet
Configuring the UDLD Probe Message Interval
To configure the time between UDLD probe messages on ports that are in advertisement mode and are
currently determined to be bidirectional, perform this task:
Command
Step 1
Router(config)# udld message time interval
Router(config)# no udld message
Step 2
Router# show udld type
78-14099-04
1
slot/port
1
slot/number
1
slot/port
1
slot/number
1
slot/number
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
Purpose
Selects the LAN port to configure.
Disables UDLD on a fiber-optic LAN port.
Reverts to the udld enable global configuration
command setting.
Note
This command is only supported on fiber-optic
LAN ports.
Verifies the configuration.
Purpose
Selects the LAN port to configure.
Disables UDLD on a fiber-optic LAN port.
Reverts to the udld enable global configuration
command setting.
This command is only supported on fiber-optic
Note
LAN ports.
Verifies the configuration.
Purpose
Configures the time between UDLD probe messages on
ports that are in advertisement mode and are currently
determined to be bidirectional; valid values are from 7 to
90 seconds.
Returns to the default value (60 seconds).
Verifies the configuration.
Configuring UDLD
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