Hi Thanks a lot for your info..What I did is as following:
0. I set up different VMs(Ubuntu 14.04, kernel 3.13.0-46) in virtualbox which is to run OVS and an SDN controller (e.g. I tried both floodlight and ONOS) 1. Download ovs files (I tried 2 versions 2.3.90 and 2.3.1), followed the instruction in INSTALL.Debian.md file, and 'fakeroot debian/rules binary' to generate list of *.deb files. 2. install packages: openvswitch-datapath-dkms, openvswitch-datapath-source, openvswitch-common, openvswitch-switch. 3. follow these command to setup OVS: * ovs-vsctl add-br br0* * ovs-vsctl add-port br0 eth1* * ovs-vsctl set Bridge br0 protocols=OpenFlow10 #Note that I tried both OpenFlow v1.0 and v1.3* * ifconfig eth1 0* * ifconfig br0 192.168.56.103 netmask 255.255.255.0* * route add default gw 192.168.56.103 br0** ovs-vsctl set-controller br0 tcp:192.168.56.101:6633 <http://192.168.56.101:6633>* 4. then, I make a ping test, while using wireshark to capture the traffic at controller..As seen from the snapshot (as attached), the BufferId in the PacketIn is 0xffffffff which indicates packet was not buffered in the OVS. I searched around by google and haven't found other information. I will very appreciate if you can help me to figure it out. Thank you so much. Best Luca On Fri, Mar 20, 2015 at 10:35 PM, Ben Pfaff <[email protected]> wrote: > On Fri, Mar 20, 2015 at 08:07:12PM +0100, Luca wrote: > > I am using OVS to simulate a virtual OpenFlow, I see that by default, OVS > > does not buffer the incoming packet, therefore, the controller software > > needs to sends a PacketOut after FLOW_MOD.. > > > > I am wondering is there a kind of configuration(e.g. by command line) > that > > enable OVS to buffer the packet so that we don't need to send a PacketOut > > to the virtual switch? > > OVS does use buffers by default. I don't know why you would see > different behavior. >
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