I have a haproxy server which gets limited to some 60k connections. I think it is because of ephemeral port limit as I have 1:1 connection mapping, so all my outgoing connections go to the same server.
Here is what I think could help me: I can add a new network interface (eth1) with a new IP. I would then add a duplicate backend server definition and I believe the new destination will get a new ephemeral port limit as long as it uses a different interface. This should let my connection counts grow.
However, I can't seem to find a way to force haproxy to use eth0 for one backend server definition and eth1 for another. Is it possible to do that, or are there other ways of achieving what I need?
The system in question is running Debian and haproxy 1.4.8 (default on Debian).