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  1. Fast Datapath Product
  2. FDP-96

Ensure no ARP/NDP replies happen fromthe LS to the LR ports

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      Given a network topology with external connections configured through br-ex – > br-bgp – > br-provider – > br-int – > VM, where br-int is configured as the OSP OVN cluster and br-bgp as an additional cluster, with connections set up in br-bgp as LS-ex < – > LR-bgp < – > LS-osp, and ARP/NDP proxying enabled on the LSP connecting LS-osp to LR-bgp, 

      When traffic is injected at the localnet port of LS-ex,

      Then, the LS should not reply with the associated LSP MAC for ingress traffic entering through the LR port and the traffic should be forwarded to the correct VM within the LS without causing a loop.

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      Given a network topology with external connections configured through br-ex – > br-bgp – > br-provider – > br-int – > VM, where br-int is configured as the OSP OVN cluster and br-bgp as an additional cluster, with connections set up in br-bgp as LS-ex < – > LR-bgp < – > LS-osp, and ARP/NDP proxying enabled on the LSP connecting LS-osp to LR-bgp,  When traffic is injected at the localnet port of LS-ex, Then, the LS should not reply with the associated LSP MAC for ingress traffic entering through the LR port and the traffic should be forwarded to the correct VM within the LS without causing a loop.
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    • FDP 24.F
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      For ingress traffic, if ARP/NDP proxy is enabled, when the traffic enters through a LR port the LS replies with the associated LSP MAC, even though the traffic was destined to another VM in that LS, which makes the traffic to be dropped  (to avoid loops) as the destination MAC is the in the port where the traffic came in.

      Steps to reproduce:

      • Create a topology with external connections through br-ex -> br-bgp -> br-provider -> br-int -> VM.
      • Configure br-int as the OSP OVN cluster and br-bgp as an additional cluster.
      • Set up connections in br-bgp as LS-ex < - > LR-bgp < - > LS-osp.
      • Enable ARP/NDP proxying on the LSP connecting LS-osp to LR-bgp.
      • Inject traffic at the localnet port of LS-ex

              lorenzobianconi lorenzo bianconi
              ltomasbo@redhat.com Luis Tomas Bolivar
              Ehsan Elahi Ehsan Elahi
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                Created:
                Updated:
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