UDP aggregation is enabled by default in OVN kubernates.

Such kind of aggregation is not suitable when the traffic coming from the POD is already encapsulated in an UDP tunnel, as it may aggregate the incoming packets without tacking in account properly the inner encapsulation, leading to data stream corruptions hard to track.

There are a few deployment scenarios leading to the above mentioned problem, including OCP over virt over OCP.

The problem is currently addressed via https://access.redhat.com/solutions/7045748, but that comes with a "This configuration is not supported in production environments." disclaimer and a better/more straightforward way to disable UDP aggregation would be useful.