haproxy terminates tcp session. ipvs/katran does not. the whole purpose of ipvs/katran is to scale out layer of load balancers, which terminates tcp (transport

haproxy terminates tcp session. ipvs/katran does not. the whole purpose of ipvs/katran is to scale out layer of load balancers, which terminates tcp (transport in general) sessions. so tl;dr ipvs/katran solving the problem of scaling out "haproxy/nginx/varnish/w/e else" layer