Replace full flow table clears with a small FIFO order queue so overflow evicts only older flow ownership hints.
Keep lookup read-only on the packet hot path and prune stale queue entries when a shared member unregisters.
Parse shared virtual nic flow keys directly from IP payload bytes instead of building pnet packet wrappers on the dispatcher hot path.
Use a local HashMap for flow owner lookup and clear the bounded table on overflow instead of removing a BTreeMap entry by key order.
Move shared member and flow ownership state into the dispatcher task.
Use control messages for member register and unregister events.
Keep the member table lock off the packet forwarding path.
Add the shared NIC dispatcher that owns the underlying VirtualNic tunnel.
Connect member ring tunnels through a private member table.
Track reverse flow ownership from packets written by a member.
Replies read from the shared device go back to the same member.
Packets without an owner fall back to any active member.
Mark the shared NIC invalid when the underlying tunnel closes or fails.
Notify members so their NicCtx can rebuild.
sijie.sun