[dpdk-users] OVS-DPDK - packets received at dpdk interface but not forwarded to VXLAN port

Avi Cohen (A) avi.cohen at huawei.com
Tue Jun 6 12:44:27 CEST 2017


Hello All



I have 2  OVS-DPDK installed  - with the following below symmetric configuration: see ***



When I send ping from a namespace (connected to the ovs-dpdk) - I see that the packet is received at the peer  via the dpdk interface - BUT not sent to the vxlan port



See  ###  the tcpdump of the packet (captured at the br-phy  in the peer) - the packet  looks  OK but  not sent to vxlan port  for decap.



[note that in the TX direction - the behavior is OK - packet sent from namespace to veth0 then to vxlan encap, then to dpdk interface --> eventually the packet is received at the dpdk peer interface]



Can someone see any problem with my configuration ?



Best Regards

avi



***

utilities/ovs-vsctl show

8cdae740-9eb3-4b79-ad6f-bca0652c5d54

    Bridge br-int

        fail_mode: standalone

        Port "vxlan0"

            Interface "vxlan0"

                type: vxlan

                options: {remote_ip="172.31.100.80"}                // the peer has other ip

        Port "veth0"

            Interface "veth0"

        Port br-int

            Interface br-int

                type: internal

    Bridge br-phy

        fail_mode: standalone

        Port "dpdk0"

            Interface "dpdk0"

                type: dpdk

                options: {dpdk-devargs="0000:00:03.0"}

        Port br-phy

            Interface br-phy

                type: internal



###

10:27:15.201711 02:d7:d1:26:84:e5 (oui Unknown) > 02:fb:9e:ce:f2:0d (oui Unknown), ethertype 802.1Q (0x8100), length 152: vlan 2047, p 0, ethertype IPv4, ip-172-31-100-80.eu-central-1.compute.internal.58740 > ip-172-31-100-44.eu-central-1.compute.internal.4789: VXLAN, flags [I] (0x08), vni 0

7a:fd:3c:4c:ee:d3 (oui Unknown) > d2:ea:96:e1:ef:d2 (oui Unknown), ethertype IPv4 (0x0800), length 98: 1.1.1.20 > 1.1.1.10: ICMP echo request, id 2235, seq 1176, length 64




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