> On Sep 25, 2015, at 4:08 AM, Nishanth Devarajan <[email protected]> wrote: > > Hello everyone, > So I have an experimental lab setup of multiple subnets > which require to have traffic forwarding between them (only in the forward > and backward directions ). > i.e: Subnet1—> Subnet2 —> Subnet3 or Subnet1 > <— Subnet2 <— Subnet3 . > > The subnets are NOT connected to some router like typical network topologies. > Each subnets consists of 2 hosts and and an OVS switch so that traffic can be > forwarded between the subnets. > > i.e > | > > | > Each subnet: > OVS > > / \ > > / \ > > h1 h2 > > Now, what is the best way to connect the OVS switches ? I was thinking of > GRE tunnels (but I could be wrong), and also does the OVS GRE tunnelling have > support for subnets ? I thank you for your help :)
All of the tunnel formats that OVS supports are L2, so they don't inherently have any understanding of subnets. In fact, neither does OVS; you'd need to program flows to handle any sort of routing. GRE is a fine tunnel format, but so is VXLAN, STT, and Geneve. They all have their pros and cons. If you want to just do some testing, they'll all be about equivalent. --Justin _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
