Configuring UDLD
Uni-Directional Link Detection (UDLD) monitors a link between two RUCKUS devices and brings the ports on both ends of the link down if the link goes down at any point between the two devices.
- Enable UDLD:
- On a port for untagged control packets:
device(config)# link-keepalive ethernet 1/1/1
- On a trunk group:
device(config)# link-keepalive ethernet 1/1/1 ethernet 1/1/2
- To receive and send UDLD control packets tagged
with a specific VLAN ID:
device(config)# link-keepalive ethernet 1/1/18 vlan 22
This command enables UDLD on port 1/1/18 and allows any UDLD control packet tagged with VLAN 22 to be received and sent on port 1/1/18.
The command does not support virtual interfaces. Attempting to configure them will have no effect.
Note: You must configure the same VLANs that will be used for UDLD on all devices across the network; otherwise, the UDLD link cannot be maintained.
- On a port for untagged control packets:
- (Optional) Change the link health-check packet send interval.
- (Optional) Set how many retries a port makes when sent health-checks receive no reply.