Hi Guys, I am newbie with using OVS and now need to set up a test environment with Docker+OVN on 4 VMs (Openstack instances)
OVS version 2.6.1 VM0: OVN central controller (NB database & SB database & northd) + Docker cluster-store Consul VM1: OVN node 1 where the docker containers will run VM2: OVN node 2 where the docker containers will run VM3: OVN node 3 where the docker containers will run By following the document of https://github.com/openvswitch/ovs/blob/v2.6.1/INSTALL.Docker.md, I got it working: the docker containers on these VMs can ping each other via geneve tunnel. Now come to my basic test: C1: container1 on VM1 C2: container2 on VM2 C3: container3 on VM3 Originally, if ping from C1 to C3, it directly gets there (C1->C3). Now I want to route the ping traffic from C1 to C3 through C2, means all the ping traffic must be C1->C2->C3. It looks very simple, but quite hard to newbies. how to do it with OVN? :( I have used floodlight as the SDN controller (by "ovs-vsctl set-controller" on VM1, VM2 & VM3), but I can't manage it to control the traffic across multiple switches (those switches are on different VMs). I also checked the OVN utilities, ovn-nbctl allows you to add ACLs, but those ACLs are for access control, not for the traffic control. The way it may work (I guess) is using ovn-sbctl to add the logical flows directly to SB database, but I am not sure if it is the right way. So can anyone point me out how to control the ping traffic. Thank you so much Best regards Jason
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