Hi Jesse, Thanks for the reply. Those are indeed packet duplications. But I do not understand what causes the problem. I don't have a physical network as such, all VMs hosted on Virtualbox connect to OVS through tap interfaces. What can possible cause this?
Thanks On Tue, Aug 14, 2012 at 6:41 PM, Jesse Gross <[email protected]> wrote: > On Tue, Aug 14, 2012 at 6:03 PM, Abhishek Chanda > <[email protected]> wrote: >> Hi Jesse, >> >> Thanks for the reply. >> I ran tcpdump on all interfaces and it shows the same thing: retransmissions >> on the switch side and no retransmissions on the client side. I observed >> that, the behavior is exactly the same if I remove my controller >> (floodlight) and let OVS be in default mode without any custom flows. I am >> wondering if this is a problem with my configuration. Here is what I did: >> >> 1. Added four tap devices on a Ubuntu box, brought them up >> 2. Assigned each tap device as an interface to 4 VMs on Virtualbox >> 3. Created a bridge in OVS and added all tap devices as ports to the bridge >> 4. Turned on the VMs and assigned IP addresses (now all VMs can ping each >> other) >> 5. Hosted a web server on one VM and accessed it from a client on another >> >> Am I missing something here? > > If you are seeing duplicate packets on the interface before it goes > through the switch then it sounds like a problem somewhere on your > physical network. > > I'm guessing that these aren't TCP retransmissions but packet duplication. _______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
