Troubleshooting shows return traffic using a different encapsulation mode than the forward path between two leaves. What should the engineer suspect?
Select an answer to reveal the explanation.
Short Explanation
If the trip there and the trip back speak different encapsulation dialects, the leaves probably disagree on symmetric vs asymmetric. That is not healthy ECMP artistry — fix the mode mismatch, do not rip out RTs or BGP.
Full Explanation
When one VTEP assumes symmetric L3 VNI routing and another operates asymmetrically (ingress route / egress bridge on L2 VNI), forward and return paths can show inconsistent encapsulation. That is a configuration/mode mismatch, not desired per-packet VNI flipping, a reason to disable BGP, or a cue to delete route targets.