Cisco ACI - Port Tracking

One of the techniques to speed up convergence in case of internal fabric connectivity failures, "port-tracking" feature addresses an outage where a leaf node loses connectivity to "all" the spine nodes in the Cisco ACI fabric.
In such a scenario, the hosts that are connected to such a leaf in active-standby setup are usually not aware of such an outage and continue to send traffic to the now isolated leaf.
This is where the port-tracking feature brings down all the host facing ports of the isolated leaf node.
For the servers that are dual homed to different leafs, this action would ensure that the uplink to the isolated leaf is not considered for forwarding the traffic.

The changes can be made as below:

System >> System Settings >> Port Tracking

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