> -----Original Message----- > From: Numan Siddique <num...@ovn.org> > Sent: Wednesday, September 23, 2020 11:12 PM > To: Tony Liu <tonyliu0...@hotmail.com> > Cc: ovs-discuss <ovs-discuss@openvswitch.org> > Subject: Re: [ovs-discuss] [ovn] distributed router port and distributed > SNAT > > > > On Thu, Sep 24, 2020 at 10:14 AM Tony Liu <tonyliu0...@hotmail.com > <mailto:tonyliu0...@hotmail.com> > wrote: > > > Hi, > > I read through this long discussion [1]. > > Here is what I am doing. > > +------------------------------------------+ > | external logical switch | > +-+-------------+--------------------+-----+ > | | | > +--+--+ +--+--+ +---+----+ > |dgp1 | |dgp2 | ... |dgp1000 | > +--+--+ +--+--+ +---+----+ > | | | > +-+-+ +-+-+ +---+---+ > |LR1| |LR2| |LR1000 | > +---+ +---+ +-------+ > > First of all, I see the same flow explosion in lr_in_arp_resolve > table. I'd like to confirm the patch [2] will also avoid explosion > in my case? > > > > > I think so. Maybe Han or Dumitru can confirm. I suggest that you test it > out yourself. > You can stop the neutron server and run a script which sets this option > on each logical router. > > something like > > for i in $(ovn-nbctl --bare --columns __uuid list logical_router) do > ovn-nbctl set logical_router $i > options:always_learn_from_arp_request=false > done > > > > In my case, LRs are not bound to any specific compute chassis. > All DGPs are bound on the central set of gateway chassis. > It's central SNAT and FIP. > > I am looking for the possibility to do distributed SNAT and FIP to > avoid central gateway nodes. With OpenStack integration, > distributed FIP is supported, but not distributed SNAT. because > there is not chassis specific address can be used as the source > IP for SNAT. > > > > > I don't think OVN supports distributed SNAT. > > > > Given the idea in [3], DPG can be bound on compute chassis. > I don't need the support to have multiple DPGs on one LR. > Then is that going to work for distributed SNAT? > Any details, like how to allocate chassis specific address > as the source IP for SNAT, and how ARP works for that address? > > > > I am not sure how easy is it going to support this.
Two pieces here, 1) multiple DPG, 2) DPG binding. I know #1 is not supported, and I actually don't need it. Is #2 already supported? If yes, then distributed SNAT can be supported by that? Thanks! Tony > > Thanks > Numan > > > > [1] https://www.mail-archive.com/ovs- > disc...@openvswitch.org/msg06948.html > [2] https://www.mail-archive.com/ovs- > d...@openvswitch.org/msg45681.html > [3] https://www.mail-archive.com/ovs- > disc...@openvswitch.org/msg06987.html > > Thanks! > Tony > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org <mailto:disc...@openvswitch.org> > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > > _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
