[openstack-dev] [Neutron] What are problems of Distributed SNAT?

Carl Baldwin carl at ecbaldwin.net
Mon Jul 6 17:28:48 UTC 2015


There was some discussion a while back on this subject.  Some
alternatives were captured on etherpad [1] with pros and cons.  Sorry
for the delay in responding.  The initial implementation of DVR went
with centralized SNAT to reduce the scope of the effort and because of
a lack consensus around which alternative to choose.


[1] https://etherpad.openstack.org/p/decentralized-snat

On Fri, Jun 26, 2015 at 5:02 AM, Miyagishi, Takanori
<miyagishi.t at jp.fujitsu.com> wrote:
> Hi all,
> I'm Takanori Miyagishi.
> I and Yushiro Furukawa, my co-worker, are planning to implement Distributed SNAT in Liberty cycle.
> So, I looking for information about Distributed SNAT implementation.
> For now, I got some information from openstack-dev ML[1][2][3] and etherpad[4].
> Would you please let me know if you have any other information.
> Best regards,
> Takanori Miyagishi
> [1] Fwd: [Neutron][DVR]Neutron distributed SNAT:
>     http://lists.openstack.org/pipermail/openstack-dev/2015-February/056415.html
> [2] About DVR limit:
>     http://lists.openstack.org/pipermail/openstack-dev/2015-January/054407.html
> [3] [neutron] dvr l3_snat:
>     http://lists.openstack.org/pipermail/openstack-dev/2014-November/049893.html
> [4] https://etherpad.openstack.org/p/YVR-nova-network
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