On Thu, Jun 26, 2025 at 8:27 AM Dumitru Ceara <dce...@redhat.com> wrote: > > Hi Frode, > > On 6/26/25 1:50 PM, Frode Nordahl wrote: > > On 25.06.2025 14:58, Dumitru Ceara wrote: > >> On 6/23/25 6:23 PM, Frode Nordahl wrote: > >>> Hello, All, > >>> > >> > >> Hi Frode, > >> > >>> Apologies for being late to the discussion, but just wanted to document > >>> our interest in this as mentioned in the last IRC meeting and just now > >>> in the A/V meeting. > >>> > >>> > >>> On 19.06.2025 16:18, Dumitru Ceara via dev wrote: > >>>> Hi Numan, > >>>> > >>>> On 6/18/25 11:38 PM, Numan Siddique wrote: > >>>>> On Wed, Jun 18, 2025 at 5:00 PM Dumitru Ceara <dce...@redhat.com> > >>>>> wrote: > >>>>>> > >>>>>> Hi Han, > >>>>>> > >>>>>> On 6/18/25 7:40 PM, Han Zhou wrote: > >>>>>>> Thanks Numan for the proposal. > >>>>>>> > >>>>>>> On Wed, Jun 18, 2025 at 4:27 AM Dumitru Ceara <dce...@redhat.com> > >>>>>>> wrote: > >>>>>>>> > >>>>>>>> Hi Numan, Ales, > >>>>>>>> > >>>>>>>> On 6/10/25 4:24 PM, Numan Siddique wrote: > >>>>>>>>> On Tue, Jun 10, 2025 at 2:04 AM Ales Musil <amu...@redhat.com> > >>>>>>>>> wrote: > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> On Thu, Jun 5, 2025 at 9:44 PM Numan Siddique <num...@ovn.org> > >>>>>>>>>> wrote: > >>>>>>>>>>> > >>>>>>>>>>> On Thu, Jun 5, 2025 at 11:33 AM Dumitru Ceara > >>>>>>>>>>> <dce...@redhat.com> > >>>>>>> wrote: > >>>>>>>>>>>> > >>>>>>>>>>>> On 6/4/25 6:24 PM, Numan Siddique wrote: > >>>>>>>>>>>>> Hello, > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> Hi Numan, > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> Hi Dumitru and Numan, > >>>>>>>>>> > >>>>>>>>>> I think the project might be a good idea in general, just adding > >>>>>>>>>> my opinion on some parts below. > >>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>>> There's a need to configure the provider bridge with specific > >>>>>>> OpenFlow > >>>>>>>>>>>>> rules after packets leave the OVN pipeline and enter via the > >>>>>>>>>>>>> patch > >>>>>>>>>>>>> port. > >>>>>>>>>>>>> > >>>>>>>>>>>>> To simplify this for CMS, I propose utilizing OVN logical > >>>>>>>>>>>>> flows. > >>>>>>> This > >>>>>>>>>>>>> would eliminate the need for CMS to manage direct OpenFlow > >>>>>>> connections > >>>>>>>>>>>>> and programming. > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> This seems very interesting! > >>>>>>>>>>>> > >>>>>>>>>>>>> To achieve this, I've developed a new service within OVN > >>>>>>>>>>>>> called > >>>>>>>>>>>>> `ovn-pr-controller` (pr = provider). Here's a high-level > >>>>>>>>>>>>> overview: > >>>>>>>>>>>>> > >>>>>>>>>>>>> A new database, `OVN_Provider`, is created with two main > >>>>>>>>>>>>> tables: > >>>>>>>>>>>>> `PR_Bridge` and `Logical_Flow`. > >>>>>>>>>>>>> > >>>>>>>>>>>>> `ovn-pr-controller` connects to this database, translates > >>>>>>>>>>>>> logical > >>>>>>>>>>>>> flows to OpenFlow rules, and programs the bridges. > >>>>>>>>>>>>> > >>>>>>>>>>>>> CMS adds logical flows for managed provider bridges by > >>>>>>>>>>>>> connecting to > >>>>>>>>>>>>> the `OVN_Provider` database. > >>>>>>>>>>>>> > >>>>>>>>>>>>> CMS can define the pipeline as needed. > >>>>>>>>>>>>> > >>>>>>>>>>>>> An `ovn-prctl` utility (similar to `ovn-nbctl`) is used to > >>>>>>>>>>>>> program > >>>>>>>>>>>>> logical flows. > >>>>>>>>>>>>> > >>>>>>>>>>>>> Example Usage: > >>>>>>>>>>>>> > >>>>>>>>>>>>> # Add a provider bridge > >>>>>>>>>>>>> `ovn-prctl add-br br-ext` > >>>>>>>>>>>>> > >>>>>>>>>>>>> # Add logical flows > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 0 100 "inport == \\"patch-port\\"" > >>>>>>>>>>>>> "ct_snat_zone = 1000; next;"` > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 0 0 "1” "next;"` > >>>>>>>>>>>>> > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 1 1000 "ip4" "ct_snat;"` > >>>>>>>>>>>>> > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 2 1000 "ip4 && ct.new && ct.trk && > >>>>>>> ip4.src > >>>>>>>>>>>>> == 10.0.0.11" "ct_snat(100.64.0.11); next;"` > >>>>>>>>>>>>> > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 2 0 "ip4" "next;"` > >>>>>>>>>>>>> > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 3 100 "ip4 && ip4.dst == > >>>>>>>>>>>>> 52.92.128.0/17" > >>>>>>>>>>>>> "tun.id = 1000; tun_ip4.dst = 10.100.100.1; eth.dst = > >>>>>>>>>>>>> 4c:96:14:14:01:b0; outport = \\"vxlan0\\"; output;"` > >>>>>>>>>>>>> > >>>>>>>>>>>>> `ovn-prctl add-flow br-ext 3 0 “1” “output;”` > >>>>>>>>>>>>> > >>>>>>>>>>>>> I'd like to get the community's feedback on whether this > >>>>>>>>>>>>> service > >>>>>>> would > >>>>>>>>>>>>> be a valuable addition to OVN. > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> I wonder if we need these to be separate databases/processes. > >>>>>>> Wouldn't > >>>>>>>>>>>> it make sense to expose this in the NB database directly? > >>>>>>>>>>>> > >>>>>>>>>>>> With your proposal, these new ovn-pr-controllers would have to > >>>>>>> connect > >>>>>>>>>>>> to the central OVN_Provider database from all chassis. But we > >>>>>>> already > >>>>>>>>>>>> have the ovn-controller connection to the Southbound. Could we > >>>>>>> reuse that? > >>>>>>>>>>> > >>>>>>>>>>> I forgot to mention that the OVN provider ovsdb-server and the > >>>>>>>>>>> ovn-pr-controller needs > >>>>>>>>>>> to be run on each chassis. > >>>>>>>>>>> > >>>>>>>> > >>>>>>>> I see. However, I think it gives even more flexibility if the OVN > >>>>>>>> provider database is centralized. Then the CMS central component > >>>>>>>> (e.g., > >>>>>>>> neutron for OpenStack) could just write "logical flows" there and > >>>>>>>> rely > >>>>>>>> on per-chassis ovn-pr-controllers to translate that to OpenFlow. > >>>>>>>> > >>>>>>> While it brings flexibility, we should also keep in mind that the > >>>>>>> central > >>>>>>> approach could introduce another choke point for scale. Even if we > >>>>>>> reuse SB > >>>>>>> DB as the central component, the new ovn-pr-controllers process > >>>>>>> would > >>>>>>> require new connections to the SB DB. > >>>>>>> > >>>>>> > >>>>>> True, but I was not really thinking of using the SB DB as the central > >>>>>> component for ovn-pr-controllers but rather a new database > >>>>>> server. And > >>>>>> I really hope it wouldn't require storing as many logical flows (and > >>>>>> data in general) as we store in the SB today. > >>>>>> > >>>>> > >>>>> Thanks for the comments and the discussion. > >>>>> > >>>>> Just FYI - I thought we are in favour of having a separate project. > >>>>> So I reworked a bit and renamed the project to - ovnbr controller (ovn > >>>>> bridge controller) > >>>>> - https://github.com/numansiddique/ovnbr/tree/initial_commits > >>>>> > >>>>> But I can move back the code to ovn project. So not a problem. > >>>>> > >>>>> > >>>>> > >>>>>>> Supporting both central and distributed may be an overkill at least > >>>>>>> as a > >>>>>>> start, if we could decide which one is more practical from a CMS > >>>>>>> point of > >>>>>>> view. > >>>>>>> > >>>>>> > >>>>>> Maybe, but the "distributed" case would probably mean more work > >>>>>> for the > >>>>>> CMS on the node side (a per chassis CMS component is definitely > >>>>>> required > >>>>>> then to provision the per chassis database). > >>>>>> > >>>>>> I do understand however that we'd need a way to abstract > >>>>>> chassis-specific resources (e.g., OVS ports) in the other, > >>>>>> "centralized", case. And that might be a significant disadvantage. > >>>>>> > >>>>>>>> On second thought, if designed properly, there's probably no need > >>>>>>>> to add > >>>>>>>> a restriction to colocate the new database and ovn-pr- > >>>>>>>> controller. We > >>>>>>>> could just support both types of deployments: > >>>>> > >>>>> @Dumitru Ceara If I understand correctly, what you're suggesting > >>>>> is that > >>>>> CMS can decide to run ovnbr database either central or locally - for > >>>>> each chassis. > >>>>> > >>>> > >>>> Yes, that's what I was thinking of. > >>> > >>> fwiw; We would be interested in the distributed database for the PR > >>> controller. > >>> > >>> Our interest surfaced after a discussion with Jakub Libosvar on how to > >>> approach downstream OpenStack Neutron consumption of OVN native BGP > >>> support, where he raised the following use case: > >>> * Single NIC chassis. > >>> * Said NIC is operated by OVS, for simplicity and purpose of discussion, > >>> let's say the user space data path. > >>> > >>> > >>> Now let's mix this with OVN native BGP features such as: > >>> * Learning the default gateway through route exchange. > >>> * Routing IPv4 prefixes over IPv6 next hop (aka. BGP Unnumbered). > >>> * BGP protocol redirect to ensure BGP next hop address is the link-local > >>> address of a OVN LR on the integration bridge (which may be required for > >>> this to work with older versions of FRR on some ToR equipment due to > >>> lack of support for 3rd party link-local next hop). > >>> > >>> > >>> With a centralized Southbound database, which a CMS such as OpenStack > >>> deploys, we would have a chicken and egg problem, because flows are > >>> needed in the integration bridge for the ovn-controller to connect to > >>> the Southbound database, and ... you get the picture. > >>> > >>> I imagine we could make parts of this work better with a distributed > >>> database for a OVN Provider Controller. > >>> > >>> I guess we could even task this distributed controller with "priming" > >>> the integration bridge with a simple set of "static flows" enough to get > >>> it bootstrapped in such topologies (or could this specific task even be > >>> a feature of the regular controller?). > >>> > >> > >> I'm just trying to make sure I understood this last part correctly. By > >> "regular controller" do you mean "ovn-controller" or some other (CMS) > >> node-specific component? > > > > I was referring to the "ovn-controller". > > > > Thanks for the clarification! > > > The need for a L3 interface on every chassis for BGP generates a lot of > > per-chassis configuration, which "pollutes" the Northbound database for > > CMSs that uses centralized OVN DBs for the entire deployment. > > > > The idea of a distributed database for the pr-controller made me think > > this distributed database could potentially also be consumed by the ovn- > > controller for per-chassis configuration in cases where more advanced > > higher layer features are required, and the CMS does not want to re- > > implement those in logical flows using the "pr-controller" themselves. > > > > Wouldn't it then make sense to just use ovn-controller for managing all > bridges (br-int and also all provider OVS bridges listed in the > distributed "Provider Database") in all cases?
I thought about that too. I still feel it's better to have a separate service. Any user can just use OVN bridge/provider controller without having to use OVN to program OVS bridges. Thanks Numan > > Thanks, > Dumitru > > > -- > > Frode Nordahl > > > >>>>> I think that would work too. Only disadvantage is that CMS has to > >>>>> ensure that the bridge names and physical interface names > >>>>> have to be the same. Although we can definitely find a way to handle > >>>>> this. > >>>>> > >>>>> The present proposal schema - > >>>>> https://github.com/numansiddique/ovnbr/blob/initial_commits/ovn- > >>>>> br.ovsschema#L66 > >>>>> has only a Bridge table and no ports defined. In the present proposal > >>>>> CMS can add > >>>>> logical flows like - "inport == eth1 && ....." and ovnbr-controller > >>>>> expects an OVS interface - eth1 in the OVS bridge. > >>>>> > >>>> > >>>> Right, we'd need a way to represent chassis specific information if we > >>>> support a central ovnbr database. Probably at least: OVS ports, > >>>> conntrack zones, provider bridge names. > >>>> > >>>>> > >>>>> > >>>>> > >>>>>>>> - ovn-pr-controller & database on the same chassis > >>>>>>>> - (multiple) ovn-pr-controller connecting to a database on a > >>>>>>>> different > >>>>>>>> node (e.g., colocated with the Southbound) > >>>>>>>> > >>>>>>>>>>> This is basically to allow a CMS agent running on each chassis > >>>>>>>>>>> to use > >>>>>>>>>>> logical flows > >>>>>>>>>>> and program them in the OVN provider database, instead of > >>>>>>>>>>> talking > >>>>>>>>>>> OpenFlow directly. > >>>>>>>>>>> > >>>>>>>>>>> OVN has a very nice way of abstracting OpenFlows using logical > >>>>>>>>>>> flows > >>>>>>>>>>> and my idea is to leverage it. > >>>>>>>>>>> > >>>>>>>>>>> ovnkube-node, as you know, programs the OpenFlow rules to the > >>>>>>>>>>> provider bridge directly by execing > >>>>>>>>>>> "ovs-ofctl". The OVN kubernetes community could possibly use > >>>>>>>>>>> OVN > >>>>>>>>>>> provider controller. > >>>>>>>> > >>>>>>>> Another thing the CMS node component (ovnkube-node in the example > >>>>>>>> above) > >>>>>>>> needs to do is reconcile flows on the "provider" bridge on restart. > >>>>>>>> > >>>>>>>> This new OVN provider controller would also remove the need for > >>>>>>>> the CMS > >>>>>>>> to do that, which is an advantage. > >>>>>>>> > >>>>>>> > >>>>>>> It is definitely valuable, and no objection from me. But I think > >>>>>>> it is > >>>>>>> better to ask opinion from CMS component maintainers if the OVS > >>>>>>> pipeline > >>>>>>> for the provider bridge is complex enough to justify this. Also, > >>>>>>> how much > >>>>>>> would it help by managing logical flows through an OVSDB versus > >>>>>>> managing > >>>>>>> open-flow rules though ovs-ofctl. Keep in mind that the abstraction > >>>>>>> here is > >>>>>>> not at the level of the NB DB which focuses on logical topologies - > >>>>>>> here > >>>>>>> the abstraction is logical-flows (something at the SB level), so > >>>>>>> the CMS > >>>>>>> still needs to manage the pipeline rather than just logical > >>>>>>> topology. > >>>>> > >>>>> That's correct. Expectation is that CMS knows what it is doing, > >>>>> And we have the requirement to add flows in the provider bridges and > >>>>> hence thought > >>>>> of this abstraction to > >>>>> - leverage the OVN logical flows > >>>>> - and to leverage the openflow handling of ovn-controller. > >>>>> > >>>>> > >>>>> My personal preference is also to have it part of OVN so that it is > >>>>> easier to manage. > >>>>> > >>>>> But as Ales mentioned, we have many logical actions like - > >>>>> put_dhcp_opts etc (which use controller action) > >>>>> which will not work with the ovn-bridge-controller. Probably > >>>>> ovn-bridge-controller can maintain its own symbol table. > >>>>> > >>>>> > >>>>> Thanks > >>>>> Numan > >>>>> > >>>>> > >>>>>>> > >>>>>>> Adding @Tim Rozet <tro...@redhat.com> @Girish Moodalbail > >>>>>>> <gmoodalb...@gmail.com> from ovn-k8s to comment. > >>>>>>> > >>>>>> > >>>>>> Adding Jakub Libosvar too, from the neutron side, as we briefly > >>>>>> touched > >>>>>> on the content of this proposal in a discussion while trying to > >>>>>> onboard > >>>>>> the OVN BGP support in neutron. IMO a centralized "provider network > >>>>>> database" might fit that specific use case quite well because the > >>>>>> open > >>>>>> flow rules that needed to be added to the provider bridge were quite > >>>>>> generic. > >>>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>>>>>>>> I'm not suggesting this, but just giving an example or a > >>>>>>>>>>> potential > >>>>>>> user. > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> I believe it could be useful, but I'm unsure if it should be > >>>>>>>>>>>>> integrated into OVN directly or be a separate project within > >>>>>>>>>>>>> `ovn-org`. > >>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> In my opinion it would be better as a standalone project within > >>>>>>>>>> ovn-org. There is couple of reasons why: > >>>>>>>>>> > >>>>>>>>>> 1) Separation between ovn actions and the new ones. I suppose the > >>>>>>>>>> ovn-pr-controller won't support like put_arp etc. in other words > >>>>>>>>>> actions that require userspace handling. > >>>>>>>>>> > >>>>>>>>>> 2) There are certain expectations about parameters, mostly ct > >>>>>>>>>> actions > >>>>>>>>>> and it feels a little strange to populate a specific register in > >>>>>>>>>> order > >>>>>>>>>> to get the action working. > >>>>>>>>>> > >>>>>>>>>> 3) Maintenance cost to some extent, standalone project might be > >>>>>>>>>> easier to maintain, it can be written in different language if it > >>>>>>>>>> would be better fit. > >>>>>>>>>> > >>>>>>>>>> 4) The abstraction can be generated automatically to some extent > >>>>>>>>>> so most of the code might be actually a way to generate the > >>>>>>>>>> parsing > >>>>>>>>>> etc. > >>>>>>>>>> > >>>>>>>>>> I'm fully aware that this would require some duplication. With > >>>>>>>>>> that > >>>>>>>>>> said, this just my opinion and I won't block any other decision. > >>>>>>>>> > >>>>>>>>> > >>>>>>>>> Hi Ales, > >>>>>>>>> > >>>>>>>>> Thanks for the replies. I agree with your points. I think it > >>>>>>>>> makes > >>>>>>>>> sense to have > >>>>>>>>> a separate project even if the code is duplicated. > >>>>>>>>> > >>>>>>>> > >>>>>>>> I'm not sure I see anything blocking the ovn-pr-controller (or > >>>>>>>> whatever > >>>>>>>> we decide to call it) code from being part of the ovn-org/ovn > >>>>>>>> project. > >>>>>>>> > >>>>>>>> It can be a standalone daemon (similar to controller/ovn- > >>>>>>>> controller or > >>>>>>>> controller-vtep/ovn-controller-vtep). > >>>>>>>> > >>>>>>>> It can even be written in a different language (e.g., rust) if we > >>>>>>>> wish. > >>>>>>>> > >>>>>>>> Keeping it in the same project actually reduces maintenance cost > >>>>>>>> because > >>>>>>>> we can just reuse the expr parsing library from OVN directly. > >>>>>>>> We can > >>>>>>>> also reuse all the build/test infra (if we wish). > >>>>>>>> > >>>>>>>> It would also mean we wouldn't have to come up with different > >>>>>>>> release > >>>>>>>> strategies, contribution guidelines, etc. > >>>>>>>> > >>>>>>>> Also, with downstream in mind, it might be (slightly) easier for > >>>>>>>> distros > >>>>>>>> to package this new binary if its code lived in ovn-org/ovn. > >>>>>>>> > >>>>>>> > >>>>>>> In my option it is really not good to duplicate components in > >>>>>>> different > >>>>>>> repos. Unless we find ways to expose logical flow translation as a > >>>>>>> library > >>>>>>> and share between the projects, I am inclined to use OVN repo > >>>>>>> directly. > >>>>>>> > >>>>>>> Thanks, > >>>>>>> Han > >>>>>>> > >>>>>>>>> Implementing in a different language would be nice but I think it > >>>>>>>>> will > >>>>>>>>> take a lot > >>>>>>>>> of effort to implement expr parsing and openflow encoding. > >>>>>>>>> > >>>>>>>>> Thanks > >>>>>>>>> Numan > >>>>>>>>> > >>>>>>>> > >>>>>>>> Thanks, > >>>>>>>> Dumitru > >>>>>>>> > >>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> I guess it depends a bit on the approach chosen for > >>>>>>>>>>>> implementation > >>>>>>> but > >>>>>>>>>>>> at a first glance this seems as a good candidate for ovn-org > >>>>>>>>>>>> to me. > >>>>>>>>>>>> > >>>>>>>>>>>>> Three possible options are: > >>>>>>>>>>>>> > >>>>>>>>>>>>> - Integrate the `OVN provider controller` into `ovn-org/ > >>>>>>>>>>>>> ovn`. > >>>>>>>>>>>>> > >>>>>>>>>>>>> - Create a separate project within `ovn-org` (which would > >>>>>>>>>>>>> require > >>>>>>>>>>>>> duplicating some files like `lib/actions.c`). > >>>>>>>>>>>>> > >>>>>>>>>>>>> - Do not pursue this. > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> Listing it here because it's on the "con" side of things. :) I > >>>>>>> wonder > >>>>>>>>>>>> if we'll end up duplicating all OVS actions into OVN logical > >>>>>>>>>>>> flow > >>>>>>> actions. > >>>>>>>>>>> > >>>>>>>>>>> Actually that's my goal. Instead of using OpenFlow rules > >>>>>>>>>>> directly, a > >>>>>>>>>>> user can express > >>>>>>>>>>> their pipeline as logical flows and not worry about the > >>>>>>>>>>> intricacies of > >>>>>>>>>>> openflow syntax. > >>>>>>>>>>> It does add another layer of abstraction for sure. > >>> > >>> > >>> With maintenance cost in mind, we definitively prefer hosting this in > >>> the main repository, and I think it fits nicely in there. > >>> > >>> -- > >>> Frode Nordahl > >>> > >>>>>>>>>>> > >>>>>>>>>>> Thanks > >>>>>>>>>>> Numan > >>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>>> I welcome your thoughts and would like to know if other OVN > >>>>>>>>>>>>> users > >>>>>>> have > >>>>>>>>>>>>> similar requirements. > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> A proof-of-concept is available here: > >>>>>>>>>>>>> > >>>>>>> https://github.com/numansiddique/ovn/tree/ > >>>>>>> provider_controller_support. > >>>>>>>>>>>>> > >>>>>>>>>>>>> > >>>>>>>>>>>>> If there is a consensus in pursuing this further, I'll > >>>>>>>>>>>>> work on > >>>>>>>>>>>>> refining the patches and submit them as RFC to start with. > >>>>>>>>>>>>> > >>>>>>>>>>>> > >>>>>>>>>>>> In general I have no objections to an RFC. (CC the rest of the > >>>>>>> maintainers). > >>>>>>>>>>>> > >>>>>>>>>>>>> Thanks, > >>>>>>>>>>>>> Numan > >>>>>>>>>>>> > >>>>>>>>>>>> Regards, > >>>>>>>>>>>> Dumitru > >>>>>>>>>>>> > >>>>>>>>>>> > >>>>>>>>>> > >>>>>>>>>> Thanks, > >>>>>>>>>> Ales > >>>>>>>>> > >>>>>>> > >>>>>> > >> > >> Thanks, > >> Dumitru > >> > > > _______________________________________________ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss