Comment 8 for bug 1201249

I suggest to look at this from usage perspective: what would be if there were no namespaces? (I'm speaking about reference implementation now)

1) we will have to account for server tcp ports which accept incoming traffic since all haproxy processes will share the same network stack
2) we'll need to verify member addresses in order to prevent the balancer of one tenant to access members of another tenant.
This, in turn, would make object model dependent on deployment (with or without namespaces)

Even single (1) makes this impractical because most users would want default 80th port to balance traffic.