If there is a controller but no flows, then no traffic will go through the switch. You need to set up some flows for traffic to pass.
On Wed, Nov 24, 2010 at 08:15:57PM +0000, Haris Rotsos wrote: > no currently eth0 and eth1 have no ip. > > At the current point I am not interested to do switching between the 2 > interfaces. I am only interested to reach the computer hosting the > switch. In order to do that, do I need to setup a flow ? > > On 24 November 2010 20:10, Ben Pfaff <b...@nicira.com> wrote: > > On Wed, Nov 24, 2010 at 07:26:50PM +0000, Haris Rotsos wrote: > >> I have a question related to openvswitch and it's functionality as an > >> openflow switch. I am currently setting up the switch as follows: > >> > >> insmod openvswitch/datapath/linux-2.6/openvswitch_mod.ko > >> insmod openvswitch/datapath/linux-2.6/brcompat_mod.ko > >> > >> #Start ovsdb server. The configuration is the default created through > >> ovsdb-create > >> sudo ovsdb-server openvswitch/ovsdb.conf > >> > >> #initialize db and create bridge > >> sudo ovs-vsctl init > >> sudo ovs-vsctl add-br br0 > >> ifconfig br0 10.1.1.1 netmask 255.255.255.0 > >> sudo ovs-vsctl add-port br0 eth0 > >> sudo ovs-vsctl add-port br0 eth1 > >> sudo ovs-vsctl set-controller br0 tcp:127.0.0.1:6633 #I am using nox > >> as a controller > >> > >> I also have a device attached on eth1 which has ip 10.1.1.2/24. As > >> long as the switch doesn't have an openflow controller setted up, I am > >> able to connect to the computer hosting the switch (e.g. pinging and > >> sshing 10.1.1.1 works). After I setup the controller ip, the host > >> becomes unreachable. The problem in the beginning was that the switch > >> didn't reply to arp request, but even if I manually insert the mac > >> address of br0, the host remained unreachable. Is there a way in a > >> setup like the one mentioned to be able to push packets up the network > >> stack to the system hosting the switch? > > > > Do you have an IP address configured (e.g. with ifconfig) on eth0 or > > eth1? You should not. > > > > It sounds like the controller isn't setting up flows. Have you tried > > using ovs-controller, to eliminate that possibility? > > > > Since the controller is local, then it would be better to use a Unix > > domain socket (unix:) to connect to it. > > > > > > -- > Charalampos Rotsos > PhD student > The University of Cambridge > Computer Laboratory > William Gates Building > JJ Thomson Avenue > Cambridge > CB3 0FD > > Phone: +44-(0) 1223 767032 > Email: cr...@cl.cam.ac.uk _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss_openvswitch.org
