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<p class="MsoNormal">Hi, I’m using Openvswitch-2.7.0 on RHEL7.3 with 4.9.30.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m using 3 machines in this config :<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif"> ------------
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif"> -------- | OVS_Switch | --------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">| HOST A | ------->| eth2 eth3 |<------- | HOST B |<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">-------- ------------ --------<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I’m configuring VXLAN tunnel on Host A and Host B as :<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ifconfig enp7s0f4d1 10.1.1.x/24 promisc<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">modprobe vxlan<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ip li add vxlan0 type vxlan id 42 group 239.1.1.1 dev enp7s0f4d1 dstport 4789<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ifconfig vxlan0 192.168.1.x/24 up<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Now I configure the host acting as OVS_switch :<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-appctl exit<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">pkill -9 ovs<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">rm -rf /usr/local/etc/ovs-vswitchd.conf<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">rm -rf /usr/local/var/run/openvswitch/db.sock<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">rm -rf /usr/local/etc/openvswitch/conf.db<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">touch /usr/local/etc/ovs-vswitchd.conf<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovsdb-tool create /usr/local/etc/openvswitch/conf.db /root/ openvswitch-2.7.0/vswitchd/vswitch.ovsschema<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovsdb-server /usr/local/etc/openvswitch/conf.db --remote=punix:/usr/local/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,Open_vSwitch,manager_options --bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert
--pidfile --detach --log-file<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-vsctl --no-wait init<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">export DB_SOCK=/usr/local/var/run/openvswitch/db.sock<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-vswitchd --pidfile --detach<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-vsctl add-br br0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">sleep 2<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ifconfig br0 up<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-vsctl add-port br0 enp7s0f4<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">sleep 5<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-vsctl add-port br0 enp7s0f4d1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">sleep 5<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-vsctl show<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif"><o:p> </o:p></span></p>
<p class="MsoNormal">Now when I ping on the vxlan interfaces from HostA to HostB and vice-versa it works.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif"><o:p> </o:p></span></p>
<p class="MsoNormal">I deleted all default flows on the switch and created a flow to switch packets with tun_id=42 but that flow does not seem to be hit.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-ofctl del-flows br0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-ofctl add-flow br0 in_port=1,tun_src=192.168.1.66,tun_id=42,action=output:2<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">[root@warrior ~]# ovs-ofctl --version<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">ovs-ofctl (Open vSwitch) 2.7.0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">OpenFlow versions 0x1:0x4<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">[root@warrior ~]# ovs-ofctl dump-flows br0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">NXST_FLOW reply (xid=0x4):<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier New",serif">cookie=0x0, duration=6.800s, table=0, n_packets=0, n_bytes=0, idle_age=6, tun_id=0x2a,tun_src=192.168.1.66,in_port=1 actions=output:2<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How to set flows for the VXLAN tunnel now?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Manu<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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