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Verifying That Uplink Failure Detection Is Working Correctly
Purpose
Verify that the switch disables the downlink interface when it detects an uplink failure.
Action
- View the current uplink failure detection status:
user@switch> show uplink-failure-detectionGroup : group1 Uplink : xe-0/0/0* Downlink : xe-0/0/1* Failure Action : Inactive
Note: The asterisk (*) indicates that the link is up.
- Disable the uplink interface:
[edit]
user@switch# set interface xe-0/0/0 disable - Save the configuration on the switch.
- View the current uplink failure detection status:
user@switch> show uplink-failure-detectionGroup : group1 Uplink : xe-0/0/0 Downlink : xe-0/0/1 Failure Action : Active
Meaning
The output in Step 1 shows that the uplink interface is up, and hence that the downlink interface is also up, and that the status of Failure Action is Inactive.
The output in Step 4 shows that both the uplink and downlink interfaces are down (there are no asterisks after the interface name) and that the status of Failure Action is changed to Active. This output shows that uplink failure detection is working.
