[ovs-dev] How OVN do SNAT/DNAT/VPN

[Russell Bryant]

On 01/27/2016 10:08 PM, Na Zhu wrote:
> Hi Russel,
> 
> 
> Thanks your information.
> I think no network node in ovn makes south-north traffic flow
> complicated, the model you like includes network node.
> In OVN, each compute node virtual router need connect to provide network
> and consume one unique ip address. But in openstack, there is only 1 ip
> for qgxxx, how you fix this issue?

I expect the first thing we'll implement is floating IPs.  Those will
reside on each hypervisor and allow north/south traffic to work without
a central network node.

At that point, we will still have the problem of how to implement SNAT
for VMs that do not have a floating IP.  I don't know how that's going
to work yet.  A central network node is how OpenStack solves it today,
but it's not the only possible solution.

-- 
Russell Bryant