Hi Ashvin, This thread in openflow-discuss mailing list may illuminate a bit:
https://mailman.stanford.edu/pipermail/openflow-discuss/2013-August/004819.html Controllers are responsible of topology discovery and disable ports to dissolve loops, basically. An implementation of this is distributed with pox, as described on its wiki: https://openflow.stanford.edu/display/ONL/POX+Wiki (Ctrl+F "hot packet soup") Hope this is a good starting point. Cheers, Alison Chan, Kettering University +1 909 278 7753 Sent from my phone. On 28 Aug 2013 00:27, "Ashvin Lakshmikantha" < ashvin.lakshmikan...@ericsson.com> wrote: > Dear all, > This is a Noob question. Pardon my ignorance, if this has > already been covered elsewhere. > > My understanding was that Decrementing TTL was required in traditional IP > networks to ensure packet transience in presence of loops. > > Why is this optional in Open Flow? How do we achieve transience of packets > in presence of loops? > > Thanks, > Ashvin > ______________________________**_________________ > openflow-discuss mailing list > openflow-discuss@lists.**stanford.edu<openflow-discuss@lists.stanford.edu> > https://mailman.stanford.edu/**mailman/listinfo/openflow-**discuss<https://mailman.stanford.edu/mailman/listinfo/openflow-discuss> >
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