No, in mininet by default each switch is “directly” connected to the controller. You configure a ip address at each switch in a interface that is also used to forward traffic, this way it will always have the “in-band behaviour”. When you do this openvswitch will create a few hidden flows with a higher priority that the controller can configure which you will able to see executing “ovs-appctl bridge/dump-flows s1”.
Regards, Pedro > On 17 Dec 2015, at 13:26, André Mantas <[email protected]> wrote: > > Hi. > > I thought in-band was default in mininet topologies? > > Anyway, sometimes OvS processes control messages using ingress tables > <http://openvswitch.org/pipermail/discuss/2015-December/019580.html> in > "in-band" environments, and it can be configured to always have this behavior > <http://openvswitch.org/pipermail/discuss/2015-December/019582.html>. I > wanted to know how to make this configuration. > > Thanks for your help. > > Pedro Maia <[email protected] <mailto:[email protected]>> > escreveu no dia quinta, 17/12/2015 às 10:51: > Hi Andre, > > An in-band controller just means that it sits in the “middle” of the network > connected to a given switch. This way when some switch sends a packet in it > uses the link it normally uses to forward traffic. > If you want to emulate it using mininet there are a few examples just look > for "in-band controller mininet”, for example > http://techandtrains.com/2013/10/04/in-band-controller-with-mininet/ > <http://techandtrains.com/2013/10/04/in-band-controller-with-mininet/> . The > important thing is to give each switch a ip address and then run the > controller in a mininet host. > > Regards, > Pedro > > On 17 Dec 2015, at 10:23, André Mantas <[email protected] > > <mailto:[email protected]>> wrote: > > > > Hi all. > > > > I want to configure in-band control so that specific controller-switch > > messages (i.e., barrier reply, bundle commit reply) are processed by the > > ingress tables instead of being forwarded through the switch's controller > > port. > > > > Is there any documentation on how to configure in-band control? > > > > Thanks in advance. > > _______________________________________________ > > discuss mailing list > > [email protected] <mailto:[email protected]> > > http://openvswitch.org/mailman/listinfo/discuss > > <http://openvswitch.org/mailman/listinfo/discuss> >
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