Cisco Nexus 3548 Configuration Manual page 19

Configuring Layer 2 Interfaces
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# feature udld
3. switch(config)# no feature udld
4. switch(config)# show udld global
5. switch(config)# interface type slot/port
6. switch(config-if)# udld {enable | disable | aggressive}
7. switch(config-if)# show udld interface
DETAILED STEPS
Command or Action
Step 1
switch# configure terminal
Step 2 switch(config)# feature udld
Step 3 switch(config)# no feature udld
Step 4 switch(config)# show udld global
Step 5
switch(config)# interface type slot/port
Step 6 switch(config-if)# udld {enable | disable | aggressive}
Step 7 switch(config-if)# show udld interface
Example
This example shows how to enable UDLD for the switch:
switch# configure terminal
switch(config)# feature udld
This example shows how to enable the normal UDLD mode for an Ethernet port:
switch# configure terminal
switch(config)# interface ethernet 1/4
switch(config-if)# udld enable
This example shows how to enable the aggressive UDLD mode for an Ethernet port:
switch# configure terminal
switch(config)# interface ethernet 1/4
switch(config-if)# udld aggressive
This example shows how to disable UDLD for an Ethernet port:
Purpose
Enters global configuration mode.
Enables UDLD for the device.
Disables UDLD for the device.
Displays the UDLD status for the device.
Specifies an interface to configure, and enters interface
configuration mode.
Enables the normal UDLD mode, disables UDLD, or
enables the aggressive UDLD mode.
Displays the UDLD status for the interface.
Cisco Nexus 3548 Switch NX-OS Interfaces Configuration Guide, Release 9x
Configuring the UDLD Mode
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