Uploaded image for project: 'Fast Datapath Product'
  1. Fast Datapath Product
  2. FDP-159

unSNAT ICMP needs frag not working with OVN-Kubernetes

XMLWordPrintable

    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Critical Critical
    • None
    • None
    • ovn23.09
    • False
    • Hide

      None

      Show
      None
    • False

      When trying to enable this functionality upstream, I see it does not unSNAT the packet, and a needs frag packet is sent out the physical interface of the host with the join subnet IP of the gateway router:

      https://github.com/ovn-org/ovn-kubernetes/pull/4025#issuecomment-1828641987

      It failed every control-plane job. The OVN and OVS DBs can be found by downloading any of the kind-logs zip files. For example: 

      https://github.com/ovn-org/ovn-kubernetes/suites/18535596409/artifacts/1076212679

       

      unzip the file and go to folder e2e-dbs which will have the OVS and OVN dbs for each node (this is an HA run (no interconnect) so there are multiple OVN DBs. The test log is here:

       

      https://github.com/ovn-org/ovn-kubernetes/actions/runs/7009478266/job/19068818098?pr=4025

       

      You can also deploy kind in ovn-kubernetes from my PR (./kind.sh -wk 2), then go to the test folder:

      export OVN_HA=false
export KIND_IPV6_SUPPORT=false
export KIND_IPV4_SUPPORT=true
make control-plane WHAT=".*queries to the hostNetworked server pod on another node shall work for UDP.*"

       

       

       

            amusil@redhat.com Ales Musil
            trozet@redhat.com Tim Rozet
            Jianlin Shi Jianlin Shi
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

              Created:
              Updated: