On the first point - it's a little more subtle than that. A traffic
flow (eg, a connection) must arrive at OVS, the first packet is sent
through userspace, which causes userspace to install a megaflow into
the datapath. Subsequently, if any traffic which matches that megaflow
arrives, it will
Can i summarize:
1. Once N microflows are installed in the kernel cache:
we can install a megaflow/s in kernel datapath, if it possible to
generate a megaflow/s for them
2. These megaflow/s remain in the kernel megaflow cache as long as the
associated flows are in userspace openflow tables,
