[ovs-discuss] [Help]Question about OVN + DPDK

txfh2007 txfh2007 at aliyun.com
Fri Apr 19 02:28:52 UTC 2019


Hi all:
    I have been deploying OVN +ovsdpdk on openstack env these days, Now I have an unresolved problem, under geneve type network, 
the OVS topology is attached below. from the userspace-tunnel document, the br-provider should have an ip address, but I have tried pinging between two vteps across compute nodes(namely ping 10.142.18.247 -I br-provider), and ping failed. I have found the br-provider on the other host received arp request but not send arp reply out. So my question is: should the br-provider send an arp reply when it gets arp request ? the br-provider is in ovs bridge which datapath_type is netdev, so how can the kernel stack handle the arp request received by br-provider ?

f382fb32-01cf-410c-b75f-04a37383a5b9
    Manager "ptcp:6640:127.0.0.1"
    Bridge br-int
        fail_mode: secure
        Port "vhu2980fb25-2a"
            Interface "vhu2980fb25-2a"
                type: dpdkvhostuser
        Port br-int
            Interface br-int
                type: internal
        Port "ovn-6426a6-0"
            Interface "ovn-6426a6-0"
                type: geneve
                options: {csum="true", key=flow, remote_ip="10.142.18.247"}
        Port "patch-br-int-to-provnet-5e710f8f-2887-419a-9fc7-4449e208c6d9"
            Interface "patch-br-int-to-provnet-5e710f8f-2887-419a-9fc7-4449e208c6d9"
                type: patch
                options: {peer="patch-provnet-5e710f8f-2887-419a-9fc7-4449e208c6d9-to-br-int"}
    Bridge br-provider
        Port "patch-provnet-5e710f8f-2887-419a-9fc7-4449e208c6d9-to-br-int"
            Interface "patch-provnet-5e710f8f-2887-419a-9fc7-4449e208c6d9-to-br-int"
                type: patch
                options: {peer="patch-br-int-to-provnet-5e710f8f-2887-419a-9fc7-4449e208c6d9"}
        Port br-provider
            Interface br-provider
                type: internal
        Port "dpdk0"
            Interface "dpdk0"
                type: dpdk
                options: {dpdk-devargs="0000:02:00.1"}

Thanks 
TIMO
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