On Tue, 2025-01-28 at 17:42 +0100, Felix Huettner wrote:
> Hi everyone,
> 
> i still need to review the actual patch, but i wanted to join the
> discussion.
> 
> On Tue, Jan 28, 2025 at 04:19:37PM +0100, Frode Nordahl wrote:
> > Hello all,
> > 
> > Apologies for the tardy response, I've been pursuing an interesting
> > bug related to the "add_route" NAT option and routing IPv4 over
> > IPv6
> > next hop, and wanted to see that to an end before chiming in.
> > Patches
> > imminent.
> > 
> > On Tue, Jan 28, 2025 at 1:50 PM Dumitru Ceara <dce...@redhat.com>
> > wrote:
> > > 
> > > On 1/28/25 1:33 PM, martin.kal...@canonical.com wrote:
> > > > Hi Frode/Numan/Dumitru,
> > > > Thanks for the review and interest in this patch, I'll put my
> > > > two cents
> > > > to the discussion below.
> > > > 
> > > 
> > > Hi Martin,
> > > 
> > > > On Mon, 2025-01-27 at 11:57 +0100, Dumitru Ceara wrote:
> > > > > On 1/26/25 4:49 AM, Numan Siddique wrote:
> > > > > > On Sat, Jan 25, 2025 at 5:52 PM Frode Nordahl
> > > > > > <fnord...@ubuntu.com>
> > > > > > wrote:
> > > > > > > 
> > > > > > > Hello,
> > > > > > > 
> > > > > > > Note that this email is sent at a time convenient to me,
> > > > > > > please
> > > > > > > don't
> > > > > > > feel obliged to read nor respond to it until a time
> > > > > > > convenient
> > > > > > > for
> > > > > > > you.
> > > > > > > 
> > > > > > > The timing of this bit of time skewed work is because I
> > > > > > > anticipated
> > > > > > > the output to be a new patch set for which we would have
> > > > > > > a desire
> > > > > > > to
> > > > > > > try to get within soft freeze. It became apparent that it
> > > > > > > would
> > > > > > > likely
> > > > > > > fit within the context of the patch set you diligently
> > > > > > > posted on
> > > > > > > friday, so I'll leave the result of it as a review
> > > > > > > comment
> > > > > > > instead.
> > > > > > > 
> > > > > > > On Thu, Jan 23, 2025 at 3:00 PM Martin Kalcok
> > > > > > > <martin.kal...@canonical.com> wrote:
> > > > > > > > 
> > > > > > > > This change builds on top of the new "dynamic routing"
> > > > > > > > OVN
> > > > > > > > feature
> > > > > > > > that allows advertising routes to the fabric network.
> > > > > > > > When LR
> > > > > > > > option
> > > > > > > > "dynamic-routing" is set on the router, following two
> > > > > > > > new LRP
> > > > > > > > options
> > > > > > > > become available:
> > > > > > > > 
> > > > > > > > * redistribute-nat - When set to "true", ovn-controller
> > > > > > > > will
> > > > > > > > advertise
> > > > > > > >                      routes for external NAT IPs valid
> > > > > > > > for the
> > > > > > > > LRP.
> > > > > > > > * redistribute-lb-vips - When set to "true", ovn-
> > > > > > > > controller
> > > > > > > > will advertise
> > > > > > > >                          host routes to LB VIPs via the
> > > > > > > > LRP.
> > > > > > > > 
> > > > > > > > Co-authored-by: Frode Nordahl <fnord...@ubuntu.com>
> > > > > > > > Signed-off-by: Frode Nordahl <fnord...@ubuntu.com>
> > > > > > > 
> > > > > > > Thanks! Good to have these options resurrected and
> > > > > > > adapted to the
> > > > > > > current state of the fabric integration patch epic.
> > > > > > > 
> > > > > > > After having read up a bit on the current state of review
> > > > > > > of our
> > > > > > > sibling options "dynmic-routing", "dynamic-routing-
> > > > > > > connected" and
> > > > > > > "dynamic-routing-static", I wonder if we need to make the
> > > > > > > nat and
> > > > > > > LB
> > > > > > > options have similar prefixes?
> > > > 
> > > > Yeah, "dynamic-routing-redistribute-lb-vips" is kinda mouthful,
> > > > but if
> > > > that's the prefix for every other related option, we should
> > > > follow it.
> > > > 
> > > 
> > > Alternatively we could try to change the dynamic-routing-
> > > redistribute-*
> > > options and instead adding a boolean for each "redistribute"
> > > option we
> > > could change "dynamic-routing-redistribute" to be a list of
> > > entities we
> > > want to redistribute, e.g.:
> > > 
> > > LR.options.dynamic-routing-redistribute="connected;nat;lb"
> > 
> > On the topic of NAT and LB, as discovered during review, there is
> > an
> > oddly named get_nat_addresses() function that can retrieve both NAT
> > and LB addresses.
> > 
> > To save us the work of refactoring it, perhaps we could use a
> > single
> > keyword for both NAT and LB addresses? I mean, would you ever want
> > one
> > without the other?
> 
> "dynamic-routing-redistribute" looks like the shorter version.
> However i see an advantage in the individual "dynamic-routing-
> static",
> etc. options as they could allow us to use more values than just
> "true"
> and "false". E.g. they could in the future be used to filter for a
> given
> prefix and only announce that.
> 
> But that is just an idea on a potential benefit. I don't actually see
> a
> reason to currently built that.

It occurred to me that we could also use `dynamic-routing-
nat`/`dynamic-routing-lb-vips` names. This would be both shorter and
kept the door open for non-boolean values in the future.

Martin.

> 
> > 
> > > What do you guys think?
> > > 
> > > > > > > 
> > > > > > > 
> > > > > > > > Signed-off-by: Martin Kalcok
> > > > > > > > <martin.kal...@canonical.com>
> > > > > > 
> > > > > > Hi Frode/Martin,
> > > > > > 
> > > > > 
> > > > > Hi Numan,
> > > > > 
> > > > > Just a disclaimer before I reply to the rest: I didn't review
> > > > > these
> > > > > two
> > > > > patches properly yet.
> > > > > 
> > > > > > I've a few questions related to the entire BGP series.  Can
> > > > > > you
> > > > > > please
> > > > > > help answer my questions?
> > > > > > 
> > > > > > 1.  If I understand, a logical port in the provider logical
> > > > > > switch
> > > > > > (with localnet port) needs to be created
> > > > > 
> > > > > I have this branch in my repo where I applied the previous
> > > > > versions
> > > > > of
> > > > > Frode/Felix's BGP series and there's a test there that shows
> > > > > how
> > > > > things
> > > > > are configured:
> > > > > 
> > > > > https://github.com/dceara/ovn/blob/80edb08e6dfd5d3b5e19288d7cc277639d85a8ae/tests/system-ovn.at#L13945-L13969
> > > > > 
> > > > > But IMO, the switch where the BGP control plane (FRR or
> > > > > something
> > > > > else)
> > > > > is connected doesn't have to be a "provider" logical switch. 
> > > > > The BGP
> > > > > control plane can run behind any LSP on any logical switch
> > > > > that's
> > > > > connected to a logical router port that has
> > > > > options:routing-protocols=BGP,BFD set.
> > > > > 
> > > > > All we need to do is ensure that BGP packets (control
> > > > > traffic) reach
> > > > > that logical router port.
> > > > > 
> > > > > In fact, in some cases we might _not even need to use the
> > > > > routing-protocols option_ as long as the CMS ensures itself
> > > > > that BGP
> > > > > packets (control traffic) reach the FRR instance in some
> > > > > other (out
> > > > > of
> > > > > band) way.
> > > > > 
> > > > > >     and this port will be used to bind the VIF for the
> > > > > > "frr" to
> > > > > > establish a bgp (unnumbered) session
> > > > > >     with its neighbor (which I assume will be the leaf
> > > > > > switch) to
> > > > > > advertise the routes right ?
> > > > > 
> > > > > That's one option yes.  But it can be any BGP speaker in
> > > > > general.
> > > > > Even
> > > > > another FRR (or other control plane) running behind a
> > > > > different OVN
> > > > > logical router (port).
> > > > > 
> > > > > >     Is my understanding correct ?  If so,  this logical
> > > > > > port will
> > > > > > use
> > > > > > the SAME mac as the logical router port.
> > > > > 
> > > > > Yes that's going to be required.
> > > > > 
> > > > > >     What will be the type of this logical port ?
> > > > > 
> > > > > Regular VIF, but because the VIF and LRP share mac address we
> > > > > had to
> > > > > take extra care and did:
> > > > > 
> > > > > https://github.com/ovn-org/ovn/commit/370527673c2b35c1b79d90a4e5052177e593a699#diff-97e16400e2bcbb4b65f7f3b8f2c05e9e8e56148df77719b71d60f235e3bcc0edR14058-R14083
> > > > > 
> > > > > >     Does the patch series add any system tests and create
> > > > > > this
> > > > > > logical port ?
> > > > > >     As I commented in another patch, adding end-to-end
> > > > > > multi node
> > > > > > system tests would be very full.
> > > > > > 
> > > > > 
> > > > > +1 I agree with this completely.
> > > > > 
> > > > 
> > > > I agree with everything that Dumitru very well summarized
> > > > above, thank
> > > > you. Just one question about the multi-node tests. The commit
> > > > above,
> > > > that Dumitru linked, also includes system tests for "routing-
> > > > protocol-
> > > > redirect". While it's not a multinode, it tests that process on
> > > > "external network" can connect to BGP port on LRP, ensuring
> > > > that BGP
> > > > control plane is redirected to the specified LSP.
> > > > Are we talking here about multinode version of that test, or a
> > > > multinode test for leaking NAT/LB addresses to VRF? Because in
> > > > my mind
> > > > these are two distinct (although related) features.
> > > > 
> > > 
> > > I think that ideally we should try to cover all supported cases
> > > in a
> > > multi-node e2e test suite.  I'm not sure we will be able to
> > > (time-wise)
> > > though.
> > 
> > We see the value of this too, and we are prepared to put some hands
> > on
> > that task. We have not done any multi node system tests before
> > though,
> > so your concerns about time are valid, we'll see how far we get! If
> > you have any pointers that would be helpful (looping in MJ).
> 
> That would be awesome if you would work on that. I guess we could
> then
> split this up again so that everyone builds a test validating their
> individual use case. Then we get a broad coverage of this feature.
> 
> > 
> > > 
> > > > > > 2.  Do this patch series advertise routes for the
> > > > > > dnat_and_snat's
> > > > > > with
> > > > > > external_mac and logical_port set ?
> > > > > >     Or does it only support gateway routers ?  and not
> > > > > > distributed
> > > > > > router with a DGP ?
> > > > > >      If it is supported,  I assume, frr needs to be run on
> > > > > > all the
> > > > > > compute nodes where the logical_port
> > > > > >     specified in the dnat_and_snat's reside.
> > > > > > 
> > > > > 
> > > > > I think that's true for all BGP support being added by the
> > > > > current
> > > > > in-flight series.
> > > > 
> > > > This is a good point, I'll take a look at whether we need
> > > > special
> > > > handling for Distributed NAT in this patch. But as Dumitru
> > > > said, these
> > > > in-flight patch series for Fabric integration extend the
> > > > support from
> > > > just gateway routers to distributed routers as well. In that
> > > > case, the
> > > > FRR would have to be run on every compute node connected to the
> > > > fabric/provider network. I have my own questions about the DR
> > > > support,
> > > > I'll raise those in the Fabric Integration series.
> > > > 
> > 
> > In our target architecture we want to set up a gateway router on
> > every
> > chassis that speaks BGP, so the need for a routing protocol daemon
> > to
> > run on every chassis is not tied to the DGP support.
> > 
> > We have a working POC with in-flight patches and OpenStack where we
> > slip a gateway router in on every hypervisor, using OpenStack's
> > "provider" network as a join LS.
> > 
> > On the topic of distributed NAT what we have yet to verify is
> > whether
> > the filtering of advertised routes works as expected in the on-list
> > patches. The original controller series made an attempt at only
> > ever
> > announcing NAT/LB addresses that actually had logical ports to
> > instances local to its chassis. Meaning that a NAT address should
> > only
> > be announced by a single gateway router, which should avoid any
> > concerns about asymmetric routing which does not work well with CT
> > state.
> 
> If you also add a tracked_port during advertised_route_table_sync
> then
> you should get different route priorities based on if the port is
> local
> or not.
> That should then be useable by frr to decide if to announce a given
> route or not.
> 
> Would that maybe solve that usecase?
> 
> Thanks a lot,
> Felix
> 
> > 
> > For LB's the story is a bit different, as you can have a single VIP
> > with backends across multiple chassis, and given hashing is
> > configured
> > correctly in the fabric, it could be safe to have traffic balance
> > across multiple chassis.
> > 
> > > Ack, looking forward to reviews.
> > 
> > Expect that to ramp up momentarily :)
> > 
> > --
> > Frode Nordahl
> > 
> > > > > 
> > > > > > 
> > > > > > Thanks
> > > > > > Numan
> > > > > > 
> > > > > 
> > > > > Regards,
> > > > > Dumitru
> > > > > 
> > > > > > 
> > > > > > > > ---
> > > > > > > >  NEWS                              |   4 +
> > > > > > > >  northd/en-advertised-route-sync.c |  11 +
> > > > > > > >  northd/inc-proc-northd.c          |   4 +
> > > > > > > >  northd/northd.c                   |  98 +++++++-
> > > > > > > >  northd/northd.h                   |   4 +
> > > > > > > >  ovn-nb.xml                        |  31 +++
> > > > > > > >  tests/system-ovn.at               | 379
> > > > > > > > ++++++++++++++++++++++++++++++
> > > > > > > >  7 files changed, 530 insertions(+), 1 deletion(-)
> > > > > > > > 
> > > > > > > > diff --git a/NEWS b/NEWS
> > > > > > > > index f526013f1..ad5b74b2e 100644
> > > > > > > > --- a/NEWS
> > > > > > > > +++ b/NEWS
> > > > > > > > @@ -24,6 +24,10 @@ Post v24.09.0
> > > > > > > >       a lower priority than static routes.
> > > > > > > >     - Add the option "dynamic-routing-connected-as-
> > > > > > > > host-routes"
> > > > > > > > to LRPs. If set
> > > > > > > >       to true then connected routes are announced as
> > > > > > > > individual
> > > > > > > > host routes.
> > > > > > > > +   - Add 'redistribute-lb-vips' LRP option. If set to
> > > > > > > > true,
> > > > > > > > the LRP can be used
> > > > > > > > +     to advertise host paths to the Load Balancer VIPs
> > > > > > > > associated with the LR.
> > > > > > > > +   - Add 'redistribute-nat' LRP option. If set to
> > > > > > > > true, the
> > > > > > > > LRP can be used
> > > > > > > > +     to advertise external NAT IPs associated with it.
> > > > > > > > 
> > > > > > > >  OVN v24.09.0 - 13 Sep 2024
> > > > > > > >  --------------------------
> > > > > > > > diff --git a/northd/en-advertised-route-sync.c
> > > > > > > > b/northd/en-
> > > > > > > > advertised-route-sync.c
> > > > > > > > index 065c73861..b6786b3af 100644
> > > > > > > > --- a/northd/en-advertised-route-sync.c
> > > > > > > > +++ b/northd/en-advertised-route-sync.c
> > > > > > > > @@ -421,9 +421,20 @@ advertised_route_table_sync(
> > > > > > > >                                          "dynamic-
> > > > > > > > routing-
> > > > > > > > static")) {
> > > > > > > >              continue;
> > > > > > > >          }
> > > > > > > > +        if (route->source == ROUTE_SOURCE_NAT &&
> > > > > > > > +                !smap_get_bool(&route->out_port->nbrp-
> > > > > > > > > options,
> > > > > > > > +                               "redistribute-nat",
> > > > > > > > false)) {
> > > > > > > > +                continue;
> > > > > > > > +        }
> > > > > > > > +        if (route->source == ROUTE_SOURCE_LB &&
> > > > > > > > +                !smap_get_bool(&route->out_port->nbrp-
> > > > > > > > > options,
> > > > > > > > +                               "redistribute-lb-vips",
> > > > > > > > false))
> > > > > > > > {
> > > > > > > > +                continue;
> > > > > > > > +        }
> > > > > > > > 
> > > > > > > >          char *ip_prefix = normalize_v46_prefix(&route-
> > > > > > > > >prefix,
> > > > > > > >                                                 route-
> > > > > > > > >plen);
> > > > > > > > +
> > > > > > > >          ar_sync_to_sb(ovnsb_txn, &sync_routes,
> > > > > > > >                           route->od->sb,
> > > > > > > >                           route->out_port->sb,
> > > > > > > > diff --git a/northd/inc-proc-northd.c b/northd/inc-
> > > > > > > > proc-
> > > > > > > > northd.c
> > > > > > > > index ab500a86a..36e1d9993 100644
> > > > > > > > --- a/northd/inc-proc-northd.c
> > > > > > > > +++ b/northd/inc-proc-northd.c
> > > > > > > > @@ -262,6 +262,10 @@ void inc_proc_northd_init(struct
> > > > > > > > ovsdb_idl_loop *nb,
> > > > > > > >      engine_add_input(&en_routes, &en_bfd, NULL);
> > > > > > > >      engine_add_input(&en_routes, &en_northd,
> > > > > > > >                       routes_northd_change_handler);
> > > > > > > > +    engine_add_input(&en_routes, &en_lr_nat,
> > > > > > > > +                     NULL);
> > > > > > > > +    engine_add_input(&en_routes, &en_lb_data,
> > > > > > > > +                     NULL);
> > > > > > > > 
> > > > > > > >      engine_add_input(&en_bfd_sync, &en_bfd, NULL);
> > > > > > > >      engine_add_input(&en_bfd_sync, &en_nb_bfd, NULL);
> > > > > > > > diff --git a/northd/northd.c b/northd/northd.c
> > > > > > > > index 23b0769fe..e86208ef8 100644
> > > > > > > > --- a/northd/northd.c
> > > > > > > > +++ b/northd/northd.c
> > > > > > > > @@ -11435,6 +11435,96 @@
> > > > > > > > parsed_routes_add_connected(const
> > > > > > > > struct ovn_datapath *od,
> > > > > > > >      }
> > > > > > > >  }
> > > > > > > > 
> > > > > > > > +static void
> > > > > > > > +parsed_routes_add_nat(const struct ovn_datapath *od,
> > > > > > > > +                      const struct ovn_port *op,
> > > > > > > > +                      struct hmap *routes)
> > > > > > > > +{
> > > > > > > > +    if (!op->nbrp || !smap_get_bool(&op->nbrp-
> > > > > > > > >options,
> > > > > > > > +                                    "redistribute-
> > > > > > > > nat",
> > > > > > > > false)) {
> > > > > > > > +        return;
> > > > > > > > +    }
> > > > > > > > +
> > > > > > > > +    size_t n_nats = 0;
> > > > > > > > +    char **nats = NULL;
> > > > > > > > +    nats = get_nat_addresses(op, &n_nats, false,
> > > > > > > > false, NULL,
> > > > > > > > true);
> > > > > > > > +
> > > > > > > > +    for (size_t i = 0; i < n_nats; i++) {
> > > > > > > > +        struct lport_addresses *laddrs =
> > > > > > > > xzalloc(sizeof
> > > > > > > > *laddrs);
> > > > > > > > +        int ofs = 0;
> > > > > > > > +        extract_addresses(nats[i], laddrs, &ofs);
> > > > > > > > +        for (int j = 0; j < laddrs->n_ipv4_addrs; j++)
> > > > > > > > {
> > > > > > > > +            struct ipv4_netaddr *addr = &laddrs-
> > > > > > > > > ipv4_addrs[j];
> > > > > > > > +            struct in6_addr prefix;
> > > > > > > > +            ip46_parse(addr->network_s, &prefix);
> > > > > > > > +
> > > > > > > > +            parsed_route_add(od, NULL, &prefix, addr-
> > > > > > > > >plen,
> > > > > > > > +                             false, addr->addr_s, op,
> > > > > > > > +                             0, false,
> > > > > > > > +                             false, NULL,
> > > > > > > > ROUTE_SOURCE_NAT,
> > > > > > > > +                             &op->nbrp->header_,
> > > > > > > > routes);
> > > > > > > > +        }
> > > > > > > > +        for (int j = 0; j < laddrs->n_ipv6_addrs; j++)
> > > > > > > > {
> > > > > > > > +            struct ipv6_netaddr *addr = &laddrs-
> > > > > > > > > ipv6_addrs[j];
> > > > > > > > +            parsed_route_add(od, NULL, &addr->addr,
> > > > > > > > addr-
> > > > > > > > > plen,
> > > > > > > > +                             false, addr->addr_s, op,
> > > > > > > > +                             0, false,
> > > > > > > > +                             false, NULL,
> > > > > > > > ROUTE_SOURCE_NAT,
> > > > > > > > +                             &op->nbrp->header_,
> > > > > > > > routes);
> > > > > > > > +        }
> > > > > > > > +        destroy_lport_addresses(laddrs);
> > > > > > > > +        free(nats[i]);
> > > > > > > > +    }
> > > > > > > > +    free(nats);
> > > > > > > > +}
> > > > > > > > +
> > > > > > > > +static void
> > > > > > > > +parsed_routes_add_lb(const struct ovn_datapath *od,
> > > > > > > > +                     const struct ovn_port *op,
> > > > > > > > +                     struct hmap *routes)
> > > > > > > > +{
> > > > > > > > +    if (!op->nbrp || !smap_get_bool(&op->nbrp-
> > > > > > > > >options,
> > > > > > > > +                                    "redistribute-lb-
> > > > > > > > vips",
> > > > > > > > false)) {
> > > > > > > > +        return;
> > > > > > > > +    }
> > > > > > > > +
> > > > > > > 
> > > > > > > The get_nat_addresses() function appears to have support
> > > > > > > for also
> > > > > > > retrieving LB addresses, and it appears to do it by
> > > > > > > consuming
> > > > > > > already
> > > > > > > populated ssets. It also supports filtering on Load
> > > > > > > Balancers
> > > > > > > with the
> > > > > > > "add_route" option set, which can be useful for
> > > > > > > retrieving
> > > > > > > indirectly
> > > > > > > connected resources (see further discussion below).
> > > > > > > 
> > > > > > > Should we consider switching to it?
> > > > 
> > > > Yeah, sounds good, I'll look into it.
> > > > 
> > > > > > > 
> > > > > > > > +    for (size_t i = 0; i < od->nbr->n_load_balancer;
> > > > > > > > i++) {
> > > > > > > > +        struct ovn_northd_lb *lb =
> > > > > > > > ovn_northd_lb_create(
> > > > > > > > +                                        od->nbr-
> > > > > > > > > load_balancer[i]);
> > > > > > > > +        for (size_t j = 0; j < lb->n_vips; j++) {
> > > > > > > > +            const struct ovn_lb_vip *lb_vip = &lb-
> > > > > > > > >vips[j];
> > > > > > > > +            if (find_lport_address(&op->lrp_networks,
> > > > > > > > lb_vip-
> > > > > > > > > vip_str)) {
> > > > > > > > +                int plen = lb_vip->address_family ==
> > > > > > > > AF_INET ?
> > > > > > > > 32 : 128;
> > > > > > > > +                parsed_route_add(od, NULL, &lb_vip-
> > > > > > > > >vip, plen,
> > > > > > > > +                                 false, lb_vip-
> > > > > > > > >vip_str, op,
> > > > > > > > +                                 0, false,
> > > > > > > > +                                 false, NULL,
> > > > > > > > ROUTE_SOURCE_LB,
> > > > > > > > +                                 &op->nbrp->header_,
> > > > > > > > routes);
> > > > > > > > +            }
> > > > > > > > +        }
> > > > > > > > +    }
> > > > > > > > +
> > > > > > > > +    for (size_t i = 0; i < od->nbr-
> > > > > > > > >n_load_balancer_group;
> > > > > > > > i++) {
> > > > > > > > +        struct nbrec_load_balancer_group *lb_group =
> > > > > > > > +            od->nbr->load_balancer_group[i];
> > > > > > > > +        for (size_t j = 0; j < lb_group-
> > > > > > > > >n_load_balancer; j++)
> > > > > > > > {
> > > > > > > > +            struct ovn_northd_lb *lb =
> > > > > > > > +                ovn_northd_lb_create(lb_group-
> > > > > > > > > load_balancer[j]);
> > > > > > > > +            for (size_t k = 0; k < lb->n_vips; k++) {
> > > > > > > > +                const struct ovn_lb_vip *lb_vip = &lb-
> > > > > > > > > vips[k];
> > > > > > > > +                if (find_lport_address(&op-
> > > > > > > > >lrp_networks,
> > > > > > > > lb_vip->vip_str)) {
> > > > > > > > +                    int plen = lb_vip->address_family
> > > > > > > > ==
> > > > > > > > AF_INET ? 32 : 128;
> > > > > > > > +                    parsed_route_add(od, NULL,
> > > > > > > > &lb_vip->vip,
> > > > > > > > plen,
> > > > > > > > +                                     false, lb_vip-
> > > > > > > > >vip_str,
> > > > > > > > op,
> > > > > > > > +                                     0, false,
> > > > > > > > +                                     false, NULL,
> > > > > > > > ROUTE_SOURCE_LB,
> > > > > > > > +                                     &op->nbrp-
> > > > > > > > >header_,
> > > > > > > > routes);
> > > > > > > > +                }
> > > > > > > > +            }
> > > > > > > > +        }
> > > > > > > > +    }
> > > > > > > > +}
> > > > > > > > +
> > > > > > > >  void
> > > > > > > >  build_parsed_routes(const struct ovn_datapath *od,
> > > > > > > > const
> > > > > > > > struct hmap *lr_ports,
> > > > > > > >                       const struct hmap
> > > > > > > > *bfd_connections,
> > > > > > > > struct hmap *routes,
> > > > > > > > @@ -11457,6 +11547,8 @@ build_parsed_routes(const
> > > > > > > > struct
> > > > > > > > ovn_datapath *od, const struct hmap *lr_ports,
> > > > > > > >      const struct ovn_port *op;
> > > > > > > >      HMAP_FOR_EACH (op, dp_node, &od->ports) {
> > > > > > > >          parsed_routes_add_connected(od, op, routes);
> > > > > > > > +        parsed_routes_add_nat(od, op, routes);
> > > > > > > > +        parsed_routes_add_lb(od, op, routes);
> > > > > > > >      }
> > > > > > > 
> > > > > > > We did not get to finish the end to end review of the
> > > > > > > state of
> > > > > > > the
> > > > > > > epic in context of downstream use with CMSs such as
> > > > > > > OpenStack
> > > > > > > before
> > > > > > > you posted these patches, so I know that support for NAT
> > > > > > > and LB
> > > > > > > "add_route" option was not on the radar at that point in
> > > > > > > time.
> > > > > > > 
> > > > > > > After having reviewed it in this context I think we would
> > > > > > > benefit
> > > > > > > greatly from adding support for that here, something
> > > > > > > like:
> > > > 
> > > > Thanks for these two diffs below. I'll include them in v2.
> > > > 
> > > > > > > diff --git a/northd/northd.c b/northd/northd.c
> > > > > > > index 7057bb03a..bb29013ef 100644
> > > > > > > --- a/northd/northd.c
> > > > > > > +++ b/northd/northd.c
> > > > > > > @@ -11438,7 +11438,8 @@ parsed_routes_add_connected(const
> > > > > > > struct
> > > > > > > ovn_datapath *od,
> > > > > > >  static void
> > > > > > >  parsed_routes_add_nat(const struct ovn_datapath *od,
> > > > > > >                        const struct ovn_port *op,
> > > > > > > -                      struct hmap *routes)
> > > > > > > +                      struct hmap *routes,
> > > > > > > +                      bool routable_only)
> > > > > > >  {
> > > > > > >      if (!op->nbrp || !smap_get_bool(&op->nbrp->options,
> > > > > > >                                      "redistribute-nat",
> > > > > > > false))
> > > > > > > {
> > > > > > > @@ -11447,7 +11448,7 @@ parsed_routes_add_nat(const
> > > > > > > struct
> > > > > > > ovn_datapath *od,
> > > > > > > 
> > > > > > >      size_t n_nats = 0;
> > > > > > >      char **nats = NULL;
> > > > > > > -    nats = get_nat_addresses(op, &n_nats, false, false,
> > > > > > > NULL,
> > > > > > > true);
> > > > > > > +    nats = get_nat_addresses(op, &n_nats, routable_only,
> > > > > > > false,
> > > > > > > NULL, true);
> > > > > > > 
> > > > > > >      for (size_t i = 0; i < n_nats; i++) {
> > > > > > >          struct lport_addresses *laddrs = xzalloc(sizeof
> > > > > > > *laddrs);
> > > > > > > @@ -11481,7 +11482,8 @@ parsed_routes_add_nat(const
> > > > > > > struct
> > > > > > > ovn_datapath *od,
> > > > > > >  static void
> > > > > > >  parsed_routes_add_lb(const struct ovn_datapath *od,
> > > > > > >                       const struct ovn_port *op,
> > > > > > > -                     struct hmap *routes)
> > > > > > > +                     struct hmap *routes,
> > > > > > > +                     bool routable_only)
> > > > > > >  {
> > > > > > >      if (!op->nbrp || !smap_get_bool(&op->nbrp->options,
> > > > > > >                                      "redistribute-lb-
> > > > > > > vips",
> > > > > > > false)) {
> > > > > > > @@ -11547,8 +11549,19 @@ build_parsed_routes(const struct
> > > > > > > ovn_datapath
> > > > > > > *od, const struct hmap *lr_ports,
> > > > > > >      const struct ovn_port *op;
> > > > > > >      HMAP_FOR_EACH (op, dp_node, &od->ports) {
> > > > > > >          parsed_routes_add_connected(od, op, routes);
> > > > > > > -        parsed_routes_add_nat(od, op, routes);
> > > > > > > -        parsed_routes_add_lb(od, op, routes);
> > > > > > > +        parsed_routes_add_nat(od, op, routes, false);
> > > > > > > +        parsed_routes_add_lb(od, op, routes, false);
> > > > > > > +    }
> > > > > > > +
> > > > > > > +    for (size_t i = 0; od->is_gw_router && i < od-
> > > > > > > >n_ls_peers;
> > > > > > > i++) {
> > > > > > > +        for (size_t j = 0; j < od->ls_peers[i]-
> > > > > > > >n_router_ports;
> > > > > > > j++) {
> > > > > > > +            struct ovn_port *router_port;
> > > > > > > +
> > > > > > > +            router_port = od->ls_peers[i]-
> > > > > > > >router_ports[j]-
> > > > > > > > peer;
> > > > > > > +
> > > > > > > +            parsed_routes_add_nat(od, router_port,
> > > > > > > routes,
> > > > > > > true);
> > > > > > > +            parsed_routes_add_lb(od, router_port,
> > > > > > > routes, true);
> > > > > > > +        }
> > > > > > >      }
> > > > > > > 
> > > > > > >      HMAP_FOR_EACH_SAFE (pr, key_node, routes) {
> > > > > > > 
> > > > > > > ---
> > > > > > > 
> > > > > > > The original controller side patches did controller-side
> > > > > > > filtering
> > > > > > > based on the instances behind the addresses actually
> > > > > > > being hosted
> > > > > > > on
> > > > > > > the local chassis, and this would still be relevant to
> > > > > > > consume
> > > > > > > something like the above, ensuring that /32 routes in the
> > > > > > > Advertise_Route table is only announced by the one
> > > > > > > gateway router
> > > > > > > local to the backing instance.
> > > > > > > 
> > > > > > > A test case showing more detail on topology is added
> > > > > > > below.
> > > > > > > 
> > > > > > > >      HMAP_FOR_EACH_SAFE (pr, key_node, routes) {
> > > > > > > > @@ -11638,6 +11730,8 @@ route_source_to_offset(enum
> > > > > > > > route_source source)
> > > > > > > >  {
> > > > > > > >      switch (source) {
> > > > > > > >          case ROUTE_SOURCE_CONNECTED:
> > > > > > > > +        case ROUTE_SOURCE_NAT:
> > > > > > > > +        case ROUTE_SOURCE_LB:
> > > > > > > >              return ROUTE_PRIO_OFFSET_CONNECTED;
> > > > > > > >          case ROUTE_SOURCE_STATIC:
> > > > > > > >              return ROUTE_PRIO_OFFSET_STATIC;
> > > > > > > > @@ -13915,7 +14009,9 @@ build_route_flows_for_lrouter(
> > > > > > > >      struct parsed_route *route;
> > > > > > > >      HMAP_FOR_EACH_WITH_HASH (route, key_node,
> > > > > > > > uuid_hash(&od-
> > > > > > > > > key),
> > > > > > > >                               parsed_routes) {
> > > > > > > > -        if (route->source == ROUTE_SOURCE_CONNECTED) {
> > > > > > > > +        if (route->source == ROUTE_SOURCE_CONNECTED ||
> > > > > > > > +                route->source == ROUTE_SOURCE_NAT ||
> > > > > > > > +                route->source == ROUTE_SOURCE_LB) {
> > > > > > > >              unique_routes_add(&unique_routes, route);
> > > > > > > >              continue;
> > > > > > > >          }
> > > > > > > > diff --git a/northd/northd.h b/northd/northd.h
> > > > > > > > index 3bc6f6f04..117b7421f 100644
> > > > > > > > --- a/northd/northd.h
> > > > > > > > +++ b/northd/northd.h
> > > > > > > > @@ -702,6 +702,10 @@ enum route_source {
> > > > > > > >      ROUTE_SOURCE_CONNECTED,
> > > > > > > >      /* The route is derived from a northbound static
> > > > > > > > route
> > > > > > > > entry. */
> > > > > > > >      ROUTE_SOURCE_STATIC,
> > > > > > > > +    /* Host route generated from NAT's external IP. */
> > > > > > > > +    ROUTE_SOURCE_NAT,
> > > > > > > > +    /* Host route generated from LB's external IP. */
> > > > > > > > +    ROUTE_SOURCE_LB,
> > > > > > > >      /* the route is learned by an ovn-controller */
> > > > > > > >      ROUTE_SOURCE_LEARNED,
> > > > > > > >  };
> > > > > > > > diff --git a/ovn-nb.xml b/ovn-nb.xml
> > > > > > > > index c5f182f24..417088a3a 100644
> > > > > > > > --- a/ovn-nb.xml
> > > > > > > > +++ b/ovn-nb.xml
> > > > > > > > @@ -2961,6 +2961,10 @@ or
> > > > > > > >                 table="Logical_Router_Port"/>
> > > > > > > >          * <ref column="options" key="dynamic-routing-
> > > > > > > > static"
> > > > > > > >                 table="Logical_Router_Port"/>
> > > > > > > > +        * <ref column="options" key="redistribute-lb-
> > > > > > > > vips"
> > > > > > > > +               table="Logical_Router_Port"/>
> > > > > > > > +        * <ref column="options" key="redistribute-nat"
> > > > > > > > +               table="Logical_Router_Port"/>
> > > > > > > >        </column>
> > > > > > > > 
> > > > > > > >        <column name="options" key="dynamic-routing-
> > > > > > > > connected"
> > > > > > > > @@ -3798,6 +3802,33 @@ or
> > > > > > > >            This allows a single chassis to learn
> > > > > > > > different
> > > > > > > > routes on separate
> > > > > > > >            LRPs bound to this chassis.
> > > > > > > >        </column>
> > > > > > > > +
> > > > > > > > +      <column name="options" key="redistribute-lb-
> > > > > > > > vips"
> > > > > > > > +              type='{"type": "boolean"}'>
> > > > > > > > +        <p>
> > > > > > > > +          Only relevant if <ref column="options"
> > > > > > > > key="dynamic-
> > > > > > > > routing"
> > > > > > > > +          table="Logical_Router"/> on the respective
> > > > > > > > Logical_Router is set
> > > > > > > > +          to <code>true</code>.
> > > > > > > > +
> > > > > > > > +          If this option is <code>true</code>, northd
> > > > > > > > will
> > > > > > > > create host route
> > > > > > > > +          entries in the southbound <ref
> > > > > > > > table="Advertised_Route"
> > > > > > > > +          db="OVN_Southbound"/> table, associated with
> > > > > > > > this
> > > > > > > > LRP, for each LB
> > > > > > > > +          VIP.
> > > > > > > > +        </p>
> > > > > > > > +      </column>
> > > > > > > > +
> > > > > > > > +      <column name="options" key="redistribute-nat"
> > > > > > > > type='{"type": "boolean"}'>
> > > > > > > > +        <p>
> > > > > > > > +          Only relevant if <ref column="options"
> > > > > > > > key="dynamic-
> > > > > > > > routing"
> > > > > > > > +          table="Logical_Router"/> on the respective
> > > > > > > > Logical_Router is set
> > > > > > > > +          to <code>true</code>.
> > > > > > > > +
> > > > > > > > +          If this option is <code>true</code>, northd
> > > > > > > > will
> > > > > > > > create host route
> > > > > > > > +          entries in the southbound <ref
> > > > > > > > table="Advertised_Route"
> > > > > > > > +          db="OVN_Southbound"/> table, for external IP
> > > > > > > > addresses of NAT rules
> > > > > > > > +          associated with this LRP.
> > > > > > > > +        </p>
> > > > > > > > +      </column>
> > > > > > > >      </group>
> > > > > > > > 
> > > > > > > >      <group title="Attachment">
> > > > > > > > diff --git a/tests/system-ovn.at b/tests/system-ovn.at
> > > > > > > > index 9dddfc399..1bcab802f 100644
> > > > > > > > --- a/tests/system-ovn.at
> > > > > > > > +++ b/tests/system-ovn.at
> > > > > > > > @@ -15283,3 +15283,382 @@
> > > > > > > > OVS_TRAFFIC_VSWITCHD_STOP(["/.*error
> > > > > > > > receiving.*/d
> > > > > > > >  AT_CLEANUP
> > > > > > > >  ])
> > > > > > > > 
> > > > > > > > +OVN_FOR_EACH_NORTHD([
> > > > > > > > +AT_SETUP([route-exchange for LB VIPs with gateway
> > > > > > > > router
> > > > > > > > IPv4])
> > > > > > > > +AT_KEYWORDS([route-exchange])
> > > > > > > > +
> > > > > > > > +CHECK_VRF()
> > > > > > > > +CHECK_CONNTRACK()
> > > > > > > > +CHECK_CONNTRACK_NAT()
> > > > > > > > +ovn_start
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_START()
> > > > > > > > +ADD_BR([br-int])
> > > > > > > > +ADD_BR([br-ext], [set Bridge br-ext fail-
> > > > > > > > mode=standalone])
> > > > > > > > +
> > > > > > > > +# Set external-ids in br-int needed for ovn-controller
> > > > > > > > +ovs-vsctl \
> > > > > > > > +        -- set Open_vSwitch . external-ids:system-
> > > > > > > > id=hv1 \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-
> > > > > > > > remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > type=geneve \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > ip=169.0.0.1 \
> > > > > > > > +        -- set bridge br-int fail-mode=secure other-
> > > > > > > > config:disable-in-band=true
> > > > > > > > +
> > > > > > > > +# Start ovn-controller
> > > > > > > > +start_daemon ovn-controller
> > > > > > > > +
> > > > > > > > +ovn-appctl vlog/set route_exchange
> > > > > > > > +check ovn-nbctl -- lr-add R1 \
> > > > > > > > +                -- set Logical_Router R1
> > > > > > > > options:requested-
> > > > > > > > tnl-key=1000 options:dynamic-routing=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl ls-add sw0
> > > > > > > > +check ovn-nbctl ls-add public
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1000:.*UP], [1])
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lrp-add R1 rp-sw0 00:00:01:01:02:03
> > > > > > > > 192.168.1.1/24
> > > > > > > > +check ovn-nbctl -- lrp-add R1 rp-public
> > > > > > > > 00:00:02:01:02:03
> > > > > > > > 172.16.1.1/24 \
> > > > > > > > +                -- lrp-set-options rp-public \
> > > > > > > > +                       maintain-vrf=true \
> > > > > > > > +                       redistribute-lb-vips=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl set logical_router R1
> > > > > > > > options:chassis=hv1
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add sw0 sw0-rp -- set
> > > > > > > > Logical_Switch_Port
> > > > > > > > sw0-rp \
> > > > > > > > +    type=router options:router-port=rp-sw0 \
> > > > > > > > +    -- lsp-set-addresses sw0-rp router
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public-rp -- set
> > > > > > > > Logical_Switch_Port public-rp \
> > > > > > > > +    type=router options:router-port=rp-public \
> > > > > > > > +    -- lsp-set-addresses public-rp router
> > > > > > > > +
> > > > > > > > +check ovs-vsctl set Open_vSwitch . external-ids:ovn-
> > > > > > > > bridge-
> > > > > > > > mappings=phynet:br-ext
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public1 \
> > > > > > > > +        -- lsp-set-addresses public1 unknown \
> > > > > > > > +        -- lsp-set-type public1 localnet \
> > > > > > > > +        -- lsp-set-options public1 network_name=phynet
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([test `ip route show table 1000 | wc -l` -eq
> > > > > > > > 1], [1])
> > > > > > > > +
> > > > > > > > +
> > > > > > > > +# Create a load balancer and associate to R1
> > > > > > > > +check ovn-nbctl lb-add lb1 172.16.1.150:80
> > > > > > > > 172.16.1.100:80
> > > > > > > > +check ovn-nbctl lr-lb-add R1 lb1
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1000:.*UP])
> > > > > > > > +AT_CHECK([test `ip route show table 1000 | wc -l` -eq
> > > > > > > > 1])
> > > > > > > > +AT_CHECK([ip route show table 1000 | grep -q
> > > > > > > > 172.16.1.150])
> > > > > > > > +
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> > > > > > > > +
> > > > > > > > +# Ensure system resources are cleaned up
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1000:.*UP], [1])
> > > > > > > > +AT_CHECK([test `ip route show table 1000 | wc -l` -eq
> > > > > > > > 1], [1])
> > > > > > > > +
> > > > > > > > +as ovn-sb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as ovn-nb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as northd
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-northd])
> > > > > > > > +
> > > > > > > > +as
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port
> > > > > > > > patch-.*/d
> > > > > > > > +/Failed to acquire.*/d
> > > > > > > > +/connection dropped.*/d"])
> > > > > > > > +AT_CLEANUP
> > > > > > > > +])
> > > > > > > > +
> > > > > > > > +OVN_FOR_EACH_NORTHD([
> > > > > > > > +AT_SETUP([route-exchange for LB VIPs with gateway
> > > > > > > > router
> > > > > > > > IPv6])
> > > > > > > > +AT_KEYWORDS([route-exchange])
> > > > > > > > +
> > > > > > > > +CHECK_VRF()
> > > > > > > > +CHECK_CONNTRACK()
> > > > > > > > +CHECK_CONNTRACK_NAT()
> > > > > > > > +ovn_start
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_START()
> > > > > > > > +ADD_BR([br-int])
> > > > > > > > +ADD_BR([br-ext], [set Bridge br-ext fail-
> > > > > > > > mode=standalone])
> > > > > > > > +
> > > > > > > > +# Set external-ids in br-int needed for ovn-controller
> > > > > > > > +ovs-vsctl \
> > > > > > > > +        -- set Open_vSwitch . external-ids:system-
> > > > > > > > id=hv1 \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-
> > > > > > > > remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > type=geneve \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > ip=169.0.0.1 \
> > > > > > > > +        -- set bridge br-int fail-mode=secure other-
> > > > > > > > config:disable-in-band=true
> > > > > > > > +
> > > > > > > > +# Start ovn-controller
> > > > > > > > +start_daemon ovn-controller
> > > > > > > > +
> > > > > > > > +ovn-appctl vlog/set route_exchange
> > > > > > > > +check ovn-nbctl -- lr-add R1 \
> > > > > > > > +                -- set Logical_Router R1
> > > > > > > > options:requested-
> > > > > > > > tnl-key=1001 options:dynamic-routing=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl ls-add sw0
> > > > > > > > +check ovn-nbctl ls-add public
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1001:.*UP], [1])
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lrp-add R1 rp-sw0 00:00:01:01:02:03
> > > > > > > > 2001:db8:100::1/64
> > > > > > > > +check ovn-nbctl -- lrp-add R1 rp-public
> > > > > > > > 00:00:02:01:02:03
> > > > > > > > 2001:db8:1001::1/64 \
> > > > > > > > +                -- lrp-set-options rp-public \
> > > > > > > > +                       maintain-vrf=true \
> > > > > > > > +                       redistribute-lb-vips=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl set logical_router R1
> > > > > > > > options:chassis=hv1
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add sw0 sw0-rp -- set
> > > > > > > > Logical_Switch_Port
> > > > > > > > sw0-rp \
> > > > > > > > +    type=router options:router-port=rp-sw0 \
> > > > > > > > +    -- lsp-set-addresses sw0-rp router
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public-rp -- set
> > > > > > > > Logical_Switch_Port public-rp \
> > > > > > > > +    type=router options:router-port=rp-public \
> > > > > > > > +    -- lsp-set-addresses public-rp router
> > > > > > > > +
> > > > > > > > +check ovs-vsctl set Open_vSwitch . external-ids:ovn-
> > > > > > > > bridge-
> > > > > > > > mappings=phynet:br-ext
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public1 \
> > > > > > > > +        -- lsp-set-addresses public1 unknown \
> > > > > > > > +        -- lsp-set-type public1 localnet \
> > > > > > > > +        -- lsp-set-options public1 network_name=phynet
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([test `ip -6 route show table 1001 | wc -l` -
> > > > > > > > eq 1],
> > > > > > > > [1])
> > > > > > > > +
> > > > > > > > +# Create a load balancer and associate to R1
> > > > > > > > +check ovn-nbctl lb-add lb1 [[2001:db8:1001::150]]:80
> > > > > > > > [[2001:db8:1001::100]]:80
> > > > > > > > +check ovn-nbctl lr-lb-add R1 lb1
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1001:.*UP])
> > > > > > > > +AT_CHECK([test `ip -6 route show table 1001 | wc -l` -
> > > > > > > > eq 1])
> > > > > > > > +AT_CHECK([ip -6 route show table 1001 | grep -q
> > > > > > > > 2001:db8:1001::150])
> > > > > > > > +
> > > > > > > > +
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> > > > > > > > +
> > > > > > > > +# Ensure system resources are cleaned up
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1001:.*UP], [1])
> > > > > > > > +AT_CHECK([test `ip -6 route show table 1001 | wc -l` -
> > > > > > > > eq 1],
> > > > > > > > [1])
> > > > > > > > +
> > > > > > > > +as ovn-sb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as ovn-nb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as northd
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-northd])
> > > > > > > > +
> > > > > > > > +as
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port
> > > > > > > > patch-.*/d
> > > > > > > > +/Failed to acquire.*/d
> > > > > > > > +/connection dropped.*/d"])
> > > > > > > > +AT_CLEANUP
> > > > > > > > +])
> > > > > > > > +
> > > > > > > > +OVN_FOR_EACH_NORTHD([
> > > > > > > > +AT_SETUP([route-exchange for DNAT and DNAT_AND_SNAT
> > > > > > > > with
> > > > > > > > gateway router IPv4])
> > > > > > > > +AT_KEYWORDS([route-exchange])
> > > > > > > > +
> > > > > > > > +CHECK_VRF()
> > > > > > > > +CHECK_CONNTRACK()
> > > > > > > > +CHECK_CONNTRACK_NAT()
> > > > > > > > +ovn_start
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_START()
> > > > > > > > +ADD_BR([br-int])
> > > > > > > > +ADD_BR([br-ext], [set Bridge br-ext fail-
> > > > > > > > mode=standalone])
> > > > > > > > +
> > > > > > > > +# Set external-ids in br-int needed for ovn-controller
> > > > > > > > +ovs-vsctl \
> > > > > > > > +        -- set Open_vSwitch . external-ids:system-
> > > > > > > > id=hv1 \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-
> > > > > > > > remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > type=geneve \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > ip=169.0.0.1 \
> > > > > > > > +        -- set bridge br-int fail-mode=secure other-
> > > > > > > > config:disable-in-band=true
> > > > > > > > +
> > > > > > > > +# Start ovn-controller
> > > > > > > > +start_daemon ovn-controller
> > > > > > > > +
> > > > > > > > +ovn-appctl vlog/set route_exchange
> > > > > > > > +check ovn-nbctl -- lr-add R1 \
> > > > > > > > +                -- set Logical_Router R1
> > > > > > > > options:requested-
> > > > > > > > tnl-key=1002 options:dynamic-routing=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl ls-add sw0
> > > > > > > > +check ovn-nbctl ls-add public
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1002:.*UP], [1])
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lrp-add R1 rp-sw0 00:00:01:01:02:03
> > > > > > > > 192.168.1.1/24
> > > > > > > > +check ovn-nbctl -- lrp-add R1 rp-public
> > > > > > > > 00:00:02:01:02:03
> > > > > > > > 172.16.1.1/24 \
> > > > > > > > +                -- lrp-set-options rp-public \
> > > > > > > > +                       maintain-vrf=true \
> > > > > > > > +                       redistribute-nat=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl set logical_router R1
> > > > > > > > options:chassis=hv1
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add sw0 sw0-rp -- set
> > > > > > > > Logical_Switch_Port
> > > > > > > > sw0-rp \
> > > > > > > > +    type=router options:router-port=rp-sw0 \
> > > > > > > > +    -- lsp-set-addresses sw0-rp router
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public-rp -- set
> > > > > > > > Logical_Switch_Port public-rp \
> > > > > > > > +    type=router options:router-port=rp-public \
> > > > > > > > +    -- lsp-set-addresses public-rp router
> > > > > > > > +
> > > > > > > > +check ovs-vsctl set Open_vSwitch . external-ids:ovn-
> > > > > > > > bridge-
> > > > > > > > mappings=phynet:br-ext
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public1 \
> > > > > > > > +        -- lsp-set-addresses public1 unknown \
> > > > > > > > +        -- lsp-set-type public1 localnet \
> > > > > > > > +        -- lsp-set-options public1 network_name=phynet
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([test `ip route show table 1002 | wc -l` -eq
> > > > > > > > 2], [1])
> > > > > > > > +
> > > > > > > > +# Create dnat_and_snat, dnat rules in R1
> > > > > > > > +check ovn-nbctl lr-nat-add R1 dnat_and_snat
> > > > > > > > 172.16.1.10
> > > > > > > > 192.168.1.10
> > > > > > > > +check ovn-nbctl lr-nat-add R1 dnat 172.16.1.11
> > > > > > > > 192.168.1.11
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1002:.*UP])
> > > > > > > > +AT_CHECK([test `ip route show table 1002 | wc -l` -eq
> > > > > > > > 2])
> > > > > > > > +AT_CHECK([ip route show table 1002 | grep -q
> > > > > > > > 172.16.1.10])
> > > > > > > > +AT_CHECK([ip route show table 1002 | grep -q
> > > > > > > > 172.16.1.11])
> > > > > > > > +
> > > > > > > > +
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> > > > > > > > +
> > > > > > > > +# Ensure system resources are cleaned up
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1000:.*UP], [1])
> > > > > > > > +AT_CHECK([test `ip route show table 1002 | wc -l` -eq
> > > > > > > > 1], [1])
> > > > > > > > +
> > > > > > > > +as ovn-sb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as ovn-nb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as northd
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-northd])
> > > > > > > > +
> > > > > > > > +as
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port
> > > > > > > > patch-.*/d
> > > > > > > > +/Failed to acquire.*/d
> > > > > > > > +/connection dropped.*/d"])
> > > > > > > > +AT_CLEANUP
> > > > > > > > +])
> > > > > > > > +
> > > > > > > > +OVN_FOR_EACH_NORTHD([
> > > > > > > > +AT_SETUP([route-exchange for DNAT and DNAT_AND_SNAT
> > > > > > > > with
> > > > > > > > gateway router IPv6])
> > > > > > > > +AT_KEYWORDS([route-exchange])
> > > > > > > > +
> > > > > > > > +CHECK_VRF()
> > > > > > > > +CHECK_CONNTRACK()
> > > > > > > > +CHECK_CONNTRACK_NAT()
> > > > > > > > +ovn_start
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_START()
> > > > > > > > +ADD_BR([br-int])
> > > > > > > > +ADD_BR([br-ext], [set Bridge br-ext fail-
> > > > > > > > mode=standalone])
> > > > > > > > +
> > > > > > > > +# Set external-ids in br-int needed for ovn-controller
> > > > > > > > +ovs-vsctl \
> > > > > > > > +        -- set Open_vSwitch . external-ids:system-
> > > > > > > > id=hv1 \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-
> > > > > > > > remote=unix:$ovs_base/ovn-sb/ovn-sb.sock \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > type=geneve \
> > > > > > > > +        -- set Open_vSwitch . external-ids:ovn-encap-
> > > > > > > > ip=169.0.0.1 \
> > > > > > > > +        -- set bridge br-int fail-mode=secure other-
> > > > > > > > config:disable-in-band=true
> > > > > > > > +
> > > > > > > > +# Start ovn-controller
> > > > > > > > +start_daemon ovn-controller
> > > > > > > > +
> > > > > > > > +ovn-appctl vlog/set route_exchange
> > > > > > > > +check ovn-nbctl -- lr-add R1 \
> > > > > > > > +                -- set Logical_Router R1
> > > > > > > > options:requested-
> > > > > > > > tnl-key=1003 options:dynamic-routing=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl ls-add sw0
> > > > > > > > +check ovn-nbctl ls-add public
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1003:.*UP], [1])
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lrp-add R1 rp-sw0 00:00:01:01:02:03
> > > > > > > > 2001:db8:100::1/64
> > > > > > > > +check ovn-nbctl -- lrp-add R1 rp-public
> > > > > > > > 00:00:02:01:02:03
> > > > > > > > 2001:db8:1003::1/64 \
> > > > > > > > +                -- lrp-set-options rp-public \
> > > > > > > > +                       maintain-vrf=true \
> > > > > > > > +                       redistribute-nat=true
> > > > > > > > +
> > > > > > > > +check ovn-nbctl set logical_router R1
> > > > > > > > options:chassis=hv1
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add sw0 sw0-rp -- set
> > > > > > > > Logical_Switch_Port
> > > > > > > > sw0-rp \
> > > > > > > > +    type=router options:router-port=rp-sw0 \
> > > > > > > > +    -- lsp-set-addresses sw0-rp router
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public-rp -- set
> > > > > > > > Logical_Switch_Port public-rp \
> > > > > > > > +    type=router options:router-port=rp-public \
> > > > > > > > +    -- lsp-set-addresses public-rp router
> > > > > > > > +
> > > > > > > > +check ovs-vsctl set Open_vSwitch . external-ids:ovn-
> > > > > > > > bridge-
> > > > > > > > mappings=phynet:br-ext
> > > > > > > > +
> > > > > > > > +check ovn-nbctl lsp-add public public1 \
> > > > > > > > +        -- lsp-set-addresses public1 unknown \
> > > > > > > > +        -- lsp-set-type public1 localnet \
> > > > > > > > +        -- lsp-set-options public1 network_name=phynet
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([test `ip -6 route show table 1003 | wc -l` -
> > > > > > > > eq 2],
> > > > > > > > [1])
> > > > > > > > +
> > > > > > > > +# Create dnat_and_snat, dnat rules in R1
> > > > > > > > +check ovn-nbctl lr-nat-add R1 \
> > > > > > > > +    dnat_and_snat 2001:db8:1003::150 2001:db8:100::100
> > > > > > > > +check ovn-nbctl lr-nat-add R1 \
> > > > > > > > +    dnat 2001:db8:1003::151 2001:db8:100::100
> > > > > > > > +
> > > > > > > > +check ovn-nbctl --wait=hv sync
> > > > > > > > +
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1003:.*UP])
> > > > > > > > +AT_CHECK([test `ip -6 route show table 1003 | wc -l` -
> > > > > > > > eq 2])
> > > > > > > > +AT_CHECK([ip -6 route show table 1003 | grep -q
> > > > > > > > 2001:db8:1003::150])
> > > > > > > > +AT_CHECK([ip -6 route show table 1003 | grep -q
> > > > > > > > 2001:db8:1003::151])
> > > > > > > > +
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-controller])
> > > > > > > > +
> > > > > > > > +# Ensure system resources are cleaned up
> > > > > > > > +AT_CHECK([ip link | grep -q ovnvrf1003:.*UP], [1])
> > > > > > > > +AT_CHECK([test `ip -6 route show table 1003 | wc -l` -
> > > > > > > > eq 2],
> > > > > > > > [1])
> > > > > > > > +
> > > > > > > > +as ovn-sb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as ovn-nb
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovsdb-server])
> > > > > > > > +
> > > > > > > > +as northd
> > > > > > > > +OVS_APP_EXIT_AND_WAIT([ovn-northd])
> > > > > > > > +
> > > > > > > > +as
> > > > > > > > +OVS_TRAFFIC_VSWITCHD_STOP(["/failed to query port
> > > > > > > > patch-.*/d
> > > > > > > > +/Failed to acquire.*/d
> > > > > > > > +/connection dropped.*/d"])
> > > > > > > > +AT_CLEANUP
> > > > > > > > +])
> > > > > > > > +
> > > > > > > > --
> > > > > > > > 2.43.0
> > > > > > > 
> > > > > > > We could also have a unit test for this for quicker
> > > > > > > iteration, I
> > > > > > > wrote
> > > > > > > one while working on the diff injected above:
> > > > > > > diff --git a/tests/ovn-northd.at b/tests/ovn-northd.at
> > > > > > > index 47efd8258..676db246d 100644
> > > > > > > --- a/tests/ovn-northd.at
> > > > > > > +++ b/tests/ovn-northd.at
> > > > > > > @@ -14678,3 +14678,137 @@ AT_CHECK([ovn-sbctl --columns
> > > > > > > ip_prefix
> > > > > > > --bare find Advertised_Route datapath=$d
> > > > > > >  AT_CLEANUP
> > > > > > >  ])
> > > > > > > 
> > > > > > > +OVN_FOR_EACH_NORTHD_NO_HV([
> > > > > > > +AT_SETUP([dynamic-routing - nat sync to sb])
> > > > > > > +AT_KEYWORDS([dynamic-routing])
> > > > > > > +ovn_start
> > > > > > > +
> > > > > > > +# Start with GW router and a single LRP
> > > > > > > +check ovn-nbctl lr-add lr0
> > > > > > > +check ovn-nbctl \
> > > > > > > +    -- \
> > > > > > > +    set Logical_Router lr0 options:dynamic-routing=true
> > > > > > > \
> > > > > > > +                           options:chassis=hv1
> > > > > > > +check ovn-nbctl --wait=sb \
> > > > > > > +    -- \
> > > > > > > +    lrp-add lr0 lr0-sw0 00:00:00:00:ff:01 10.0.0.1/24
> > > > > > > +
> > > > > > > +check_row_count Advertised_Route 0
> > > > > > > +
> > > > > > > +datapath=$(ovn-sbctl --bare --columns _uuid list
> > > > > > > datapath_binding lr0)
> > > > > > > +pb=$(ovn-sbctl --bare --columns _uuid list port_binding
> > > > > > > lr0-sw0)
> > > > > > > +
> > > > > > > +# Adding LRP dynamic-routing-nat option and NAT rule
> > > > > > > advertises
> > > > > > > a route entry
> > > > > > > +check ovn-nbctl --wait=sb \
> > > > > > > +    -- \
> > > > > > > +    lrp-set-options lr0-sw0 redistribute-nat=true \
> > > > > > > +    -- \
> > > > > > > +    lr-nat-add lr0 dnat_and_snat 172.16.1.10
> > > > > > > 192.168.1.10
> > > > > > > +
> > > > > > > +ovn-nbctl list NAT
> > > > > > > +ovn-sbctl list Advertised_Route
> > > > > > > +ovn-sbctl lflow-list
> > > > > > > +
> > > > > > > +check_row_count Advertised_Route 1
> > > > > > > +# XXX the missing /32 in the ip_prefix below is probably
> > > > > > > incorrect?
> > > > > > > +AT_CHECK([ovn-sbctl --columns ip_prefix --bare find
> > > > > > > Advertised_Route
> > > > > > > datapath=$datapath logical_port=$pb], [0], [dnl
> > > > > > > +172.16.1.10
> > > > > > > +])
> > > > > > > +
> > > > > > > +# Add LR with distributed LRP connected to GW router
> > > > > > > through
> > > > > > > join LS
> > > > > > > +check ovn-nbctl \
> > > > > > > +    -- \
> > > > > > > +    lrp-add lr0 lr0-join 00:00:00:00:ff:02 10.42.0.1/24
> > > > > > > \
> > > > > > > +    -- \
> > > > > > > +    ls-add ls-join \
> > > > > > > +    -- \
> > > > > > > +    lsp-add ls-join lsp-join-to-lr0 \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-type lsp-join-to-lr0 router \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-options lsp-join-to-lr0 router-port=lr0-join
> > > > > > > \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-addresses lsp-join-to-lr0 router \
> > > > > > > +    -- \
> > > > > > > +    lr-add lr-guest0 \
> > > > > > > +    -- \
> > > > > > > +    lrp-add lr-guest0 lrp-guest0-sw0 00:00:00:00:fe:01
> > > > > > > 10.51.0.1/24 \
> > > > > > > +    -- \
> > > > > > > +    lrp-add lr-guest0 lrp-guest0-join 00:00:00:00:fe:02
> > > > > > > 10.42.0.2/24 \
> > > > > > > +    -- \
> > > > > > > +    lrp-set-options lrp-guest0-join redistribute-
> > > > > > > nat=true \
> > > > > > > +    -- \
> > > > > > > +    lsp-add ls-join lsp-join-to-guest0 \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-type lsp-join-to-guest0 router \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-options lsp-join-to-guest0 router-port=lrp-
> > > > > > > guest0-
> > > > > > > join \
> > > > > > > +    -- \
> > > > > > > +    lrp-set-gateway-chassis lrp-guest0-join hv1
> > > > > > > +
> > > > > > > +pb2=$(ovn-sbctl --bare --columns _uuid list port_binding
> > > > > > > lrp-
> > > > > > > guest0-join)
> > > > > > > +
> > > > > > > +check ovn-nbctl --wait=sb \
> > > > > > > +    --add-route lr-nat-add lr-guest0 dnat_and_snat
> > > > > > > 172.16.2.10
> > > > > > > 192.168.2.10
> > > > > > > +
> > > > > > > +check_row_count Advertised_Route 2
> > > > > > > +# XXX the missing /32 in the ip_prefix below is probably
> > > > > > > incorrect?
> > > > > > > +AT_CHECK([ovn-sbctl --columns ip_prefix --bare find
> > > > > > > Advertised_Route
> > > > > > > datapath=$datapath logical_port=$pb], [0], [dnl
> > > > > > > +172.16.1.10
> > > > > > > +])
> > > > > > > +# XXX the missing /32 in the ip_prefix below is probably
> > > > > > > incorrect?
> > > > > > > +AT_CHECK([ovn-sbctl --columns ip_prefix --bare find
> > > > > > > Advertised_Route
> > > > > > > datapath=$datapath logical_port=$pb2], [0], [dnl
> > > > > > > +172.16.2.10
> > > > > > > +])
> > > > > > > +
> > > > > > > +# Add nonlocal LR with distributed LRP connected to GW
> > > > > > > router
> > > > > > > through join LS
> > > > > > > +check ovn-nbctl \
> > > > > > > +    -- \
> > > > > > > +    lr-add lr-guest1 \
> > > > > > > +    -- \
> > > > > > > +    lrp-add lr-guest1 lrp-guest1-sw0 00:00:00:00:fd:01
> > > > > > > 10.51.1.1/24 \
> > > > > > > +    -- \
> > > > > > > +    lrp-add lr-guest1 lrp-guest1-join 00:00:00:00:fd:02
> > > > > > > 10.42.0.3/24 \
> > > > > > > +    -- \
> > > > > > > +    lrp-set-options lrp-guest1-join redistribute-
> > > > > > > nat=true \
> > > > > > > +    -- \
> > > > > > > +    lsp-add ls-join lsp-join-to-guest1 \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-type lsp-join-to-guest1 router \
> > > > > > > +    -- \
> > > > > > > +    lsp-set-options lsp-join-to-guest1 router-port=lrp-
> > > > > > > guest1-
> > > > > > > join \
> > > > > > > +    -- \
> > > > > > > +    lrp-set-gateway-chassis lrp-guest1-join nonlocalhv
> > > > > > > +
> > > > > > > +pb3=$(ovn-sbctl --bare --columns _uuid list port_binding
> > > > > > > lrp-
> > > > > > > guest1-join)
> > > > > > > +
> > > > > > > +check ovn-nbctl --wait=sb \
> > > > > > > +    --add-route lr-nat-add lr-guest1 dnat_and_snat
> > > > > > > 172.16.3.10
> > > > > > > 192.168.3.10
> > > > > > > +check_row_count Advertised_Route 3
> > > > > > > +# XXX the missing /32 in the ip_prefix below is probably
> > > > > > > incorrect?
> > > > > > > +AT_CHECK([ovn-sbctl --columns ip_prefix --bare find
> > > > > > > Advertised_Route
> > > > > > > datapath=$datapath logical_port=$pb], [0], [dnl
> > > > > > > +172.16.1.10
> > > > > > > +])
> > > > > > > +# XXX the missing /32 in the ip_prefix below is probably
> > > > > > > incorrect?
> > > > > > > +AT_CHECK([ovn-sbctl --columns ip_prefix --bare find
> > > > > > > Advertised_Route
> > > > > > > datapath=$datapath logical_port=$pb2], [0], [dnl
> > > > > > > +172.16.2.10
> > > > > > > +])
> > > > > > > +# XXX the missing /32 in the ip_prefix below is probably
> > > > > > > incorrect?
> > > > > > > +AT_CHECK([ovn-sbctl --columns ip_prefix --bare find
> > > > > > > Advertised_Route
> > > > > > > datapath=$datapath logical_port=$pb3], [0], [dnl
> > > > > > > +172.16.3.10
> > > > > > > +])
> > > > > > > +
> > > > > > > +# removing the option:dynamic-routing removes all routes
> > > > > > > +check ovn-nbctl --wait=sb remove Logical_Router lr0
> > > > > > > option
> > > > > > > dynamic-routing
> > > > > > > +check_row_count Advertised_Route 0
> > > > > > > +
> > > > > > > +# and setting it again adds them again
> > > > > > > +check ovn-nbctl --wait=sb set Logical_Router lr0
> > > > > > > option:dynamic-
> > > > > > > routing=true
> > > > > > > +check_row_count Advertised_Route 3
> > > > > > > +
> > > > > > > +# removing the lr will remove all routes
> > > > > > > +check ovn-nbctl --wait=sb lr-del lr0
> > > > > > > +check_row_count Advertised_Route 0
> > > > > > > +
> > > > > > > +AT_CLEANUP
> > > > > > > +])
> > > > > > > ---
> > > > > > > 
> > > > > > > --
> > > > > > > Frode Nordahl
> > > 
> > > Regards,
> > > Dumitru
> > > 

_______________________________________________
dev mailing list
d...@openvswitch.org
https://mail.openvswitch.org/mailman/listinfo/ovs-dev

Reply via email to