Details
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Bug
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Status: Resolved
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Resolution: Done
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Boron
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None
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None
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Operating System: All
Platform: All
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7409
Description
Issue : SNAT Traffic from Non-Fip VM of non-primary DPN to FIP of non-primary DPN is dropping with SNAT flows on different DPN.
As per attached topology, when an Non-FIP(VM-131) try to reaches FIP(VM-211), the packet is forwarded to the DPN1->DPN2 and DPN2(Primary-NAPT) has the SNAT flows. After going though the SNAT flows, the packet will be sent back to DPN1 via vxvlan tunnel-port - tunzz.
Since the packet entered DPN2 on tunzz and again sent back to same port(out_port == in_port), because of default OVS split-horizon behaiour of split-horizon, the packet is dropped.