Hi ALL：
We are running openstack J with neutron OVS2.4 using intel 10G
adapters(82599es) with vxlan tunnels.
We find this patch below to resolve problem of vxlan throughput.
http://openvswitch.org/pipermail/dev/2015-August/059335.html
We modify vport-vxlan.c as the patch，and make the udp csum flag fixed as
param when calling vxlan_sock_add in func vxlan_tnl_create , but the throughput
we got does not exceed 3Gbps on the 10Gb link.
What we do as below：
vs = vxlan_sock_add(net, htons(dst_port), vxlan_rcv, vport, true,
- vxlan_port->exts);
+ vxlan_port->exts | VXLAN_F_UDP_CSUM);
I have no idea whether this patch works？ Anyone can help,thanks!
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