Whoops, should have merged this with the reply to your other email. :) On Sep 26, 2013, at 10:20 PM, Murphy McCauley <murphy.mccau...@gmail.com> wrote:
> I wouldn't say the controller ever sends LLDP *to* both switches. I'd say it > sends LLDP packets *from* the switches. That is, via the control channel, > the controller instructs the switches to send LLDP packets. > > More directly answering your question. In a case like you show (utilizing > in-band control) > > > On Sep 26, 2013, at 10:14 PM, Windhya Rankothge <windys...@gmail.com> wrote: > >> >> Hi all, >> >> My question is about a physical network like following, where POX controller >> is physically directly connected to S1, but it controlls both S1 and S2 >> >> C1 >> I >> S1 --- S2 >> >> In this case, for the openflow topology discovery, does POX controller send >> LLDP packets to both switches which are controlled by it, or does it send to >> LLDP packet only to S1 which is directly connected to controller ?? >> >> Highly appreciate your thoughts.. >> >> Best Regards, >> >> Windhya Rankothge >