[ovs-dev] [PATCH 0/2] load-balancer fix for north-south direction.

Guru Shetty guru at ovn.org
Fri Sep 9 16:07:58 UTC 2016


On 9 September 2016 at 09:03, Ben Pfaff <blp at ovn.org> wrote:

> On Tue, Aug 23, 2016 at 02:46:16AM -0700, Gurucharan Shetty wrote:
> > So far, we have had the ability to add a load-balancer to a switch.
> This works
> > fine for east-west traffic.  It was assumed (and lightly tested) that it
> also
> > works for north-south traffic by adding the load_balancer object to the
> lswitch
> > connected to the local network.
> >
> > But, in more extensive testing, it was observed that this does not work
> > when we add a SNAT rule to the gateway router. That rule is in a
> > different zone and will intercept traffic heading out the logical
> > topology without any knowledge about the load balancer rule added in a
> > different zone.
> >
> > This fix, lets us add the load_balancer to the gateway router too. It
> has the
> > added benefit that it works fine with floating IPs for north-south
> traffic.
> > i.e., floating ips can be load-balanced to logical ips.
> >
> > Gurucharan Shetty (2):
> >   ovn-controller: Datapath based conntrack zone for load-balancing.
> >   ovn-northd: Add load-balancers to gateway routers.
>
> Is this series intended for 2.6 or 2.7?
>
2.6 is the goal.



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