Hello, In your config you enabled gso but didn't turn gro on. IOW, in this mode, VPP accepts GSO packets sent by linux but won't coalesce packets to reduce the load on linux side. You may be interested in this article https://medium.com/fd-io-vpp/getting-to-40g-encrypted-container-networking-with-calico-vpp-on-commodity-hardware-d7144e52659a even if it's not super recent. Anyway, if you application can support VCL, it will certainly be much faster. Jerome
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