The NIC can hash on IPs and UDP ports just fine, nothing to worry about here.
Sure, there's the rare case of a connection moving to a different L3/4 flow identifier causing a cache miss, but that's not something that happens often enough to be a relevant bottleneck.
Sure, there's the rare case of a connection moving to a different L3/4 flow identifier causing a cache miss, but that's not something that happens often enough to be a relevant bottleneck.