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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 : ge-0/0/0* Downlink : ge-0/0/1* Failure Action : Inactive
Note: The asterisk (*) indicates that the link is up.
- Disable the uplink interface:
[edit]
user@switch# set interface ge-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 : ge-0/0/0 Downlink : ge-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 and that the status of Failure Action is changed to Active. This output shows that uplink failure detection is working.
