Oh, it's about wireless. OVS doesn't have special 802.11 support. On Tue, Oct 27, 2020 at 06:51:08AM +0000, Soliman Awad Alshra´a Abdullah TU Ilmenau wrote: > > Dear sir, > > > Attached you find the requested article > > Thanks > M.Sc Abdullah Soliman > Technische Universität Ilmenau > Fakultät für Elektrotechnik und Informationstechnik > Fachgebiet Kommunikationsnetze > Besucheradresse: > Helmholtzplatz 2 > 98693 Ilmenau > > Postadresse: > PF 10 05 65 > 98684 Ilmenau > > > Telefon > > +49 3677 69-2698 > > [cid:[email protected]] > [email protected]<mailto:[email protected]> > [cid:[email protected]] > www.tu-ilmenau.de/it-kn<https://www.tu-ilmenau.de/it-kn> > > [cid:[email protected]] > > > > [cid:[email protected]] > > > > ________________________________ > From: Ben Pfaff <[email protected]> > Sent: 26 October 2020 18:44:03 > To: Soliman Awad Alshra´a Abdullah TU Ilmenau > Cc: [email protected] > Subject: Re: [ovs-dev] Is the Open Flow switch able to calculate the gap of > sequence number > > On Fri, Oct 23, 2020 at 02:38:06PM +0000, Soliman Awad Alshra´a Abdullah TU > Ilmenau wrote: > > OpenFLow switch is able to keep track of the sequence number of each > > traffic flow to detect MAC spoofing attack. Upon reception of a frame, the > > algorithm calculates the gap G between the sequence number of the current > > frame and that of the last frame received from the same source address. If > > G = 0, the current frame is considered as a re-transmitted frame, while if > > G = 1 or G = 2, the current frame is considered the right one. But, if the > > gap between the current frame and previous frame is in between 3 and 4096, > > then it is considered an abnormal sequence number. > > > > In my case, I use Ryu Controller and I would like to do the same work, > > where the switch sends the alert to the controller after the switch detects > > the gap. > > This doesn't make sense to me. Frames don't have sequence numbers. > > Can you cite the publication that makes this claim?
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