Symptom

OTV routes are not exchanged between a Nexus 7000 switch running 6.2(x) image and an ASR1K device. The overlay adjacency comes up fine, however no OTV routes are exchanged.

Conditions

Nexus 7000 switch running 6.2(x) image

Workaround

None so far. The fix would be integrated into the 6.2(12) release. 6.1(x) image work fine with the latest IOS code. Another option for the customer is to use older IOS code - XE 3.12 with 6.2(x), as the interop issue exists between XE 3.13 and 6.2(x). The fix that has been integrated into the 6.2(12) code needs to be implemented as follows. N77-1(config)# inter overlay 1 N77-1(config-if-overlay)# shut (<<<<Shut down all the overlay interfaces) N77-1(config-if-overlay)# otv-isis default N77-1(config-router)# interop-enable N77-1(config-router)# end N77-1(config)# inter overlay 1 N77-1(config-if-overlay)# no shut N77-1(config-if-overlay)# end

Further Problem Description