On Fri, Jun 13, 2025 at 8:44 AM Tim Rozet via dev <ovs-dev@openvswitch.org> wrote: > > Hello, > In the OVN-Kubernetes we have been discussing and designing a way to > implement Service Function Chaining (SFC) for various use cases. Some of > these use cases are fairly complicated, involving a DPU and multiple > clusters. However, we have tried to abstract the OVN design and use case > into a generic implementation that is not specific to our particular use > cases. It follows SFC designs previously done within other projects like > OpenStack Neutron and OpenDaylight. Please see: > > https://docs.google.com/document/d/1dLdpx_9ZCnjHHldbNZABIpJF_GXd69qb/edit#bookmark=id.a7vfofkk8rj5 > > tl;dr the design includes new tables to declare chains and classifiers to > get traffic into that chain. There needs to be a new stage in the datapath > pipeline to evaluate this behavior upon port ingress. We also need these > flows to be hardware offloadable. > > For more details on the specific use cases we are targeting in the > OVN-Kubernetes project, please see: > > https://docs.google.com/document/d/1MDZlu4oHL3RCWndbSgC-IGLgs1QfnB1l47nPqtM5iNo/edit?tab=t.0#heading=h.g8u53k9ds9s5 > > Would appreciate feedback (either on the mailing list or in the design doc) > and thoughts from the OVN experts on how we can accomodate this feature. >
Hi Tim, There is a very similar proposal from @Sragdhara Datta Chaudhuri to add Network Functions support in OVN. Can you please take a look at it ? Looks like there are many similarities in the requirements. https://mail.openvswitch.org/pipermail/ovs-dev/2025-May/423586.html https://mail.openvswitch.org/pipermail/ovs-dev/2025-June/424102.html Thanks Numan > Thanks > > Tim Rozet > Red Hat OpenShift Networking Team > > > > _______________________________________________ > dev mailing list > d...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-dev _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
