I am using the master branch which is OVS 1.10 or higher. So does that mean I will not be able to test multiple datapaths with a single ovs-vswitchd daemon with 1.10 and higher? You answered yes to #2 above? Is this true with 1.10 too?
Thanks. On Fri, Apr 12, 2013 at 2:43 PM, Ben Pfaff <[email protected]> wrote: > On Fri, Apr 12, 2013 at 02:27:09PM -0700, Aishwarya wrote: > > 1) Running 2 OVS user space daemons on the same machine, and creating a > > bridge per OVS process. > > > > 2) Running a single OVS and creating 2 different bridges with the same > OVS > > process. > > > > Couple of questions: > > 1. Is (1) even supported? > > It won't work, out of the box, if you use the OVS kernel module. You > might be able to get it to work with some effort, especially if you > use the userspace datapath only. > > > 2. My use case is that I basically want to be able to test with multiple > > datapaths on the same machine. With my experimentation, I feel (2) should > > satisfy this. Is that true? > > Yes. > > > 3. Does a single bridge correspond to a single datapath? If not, what is > > the real difference between the concept of a bridge and datapath? > > A bridge is an Ethernet or OpenFlow concept. A datapath is an > implementation detail. Before OVS 1.10 there was a one-to-one > relationship between bridges and datapaths; in OVS 1.10 and later > there is only one datapath even if there are many bridges. >
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