Dear Alex. Thats a good question. I want the same thing as you but I havent found anything. Maybe, we should understand that the current openflow specification does not support the capability of making reservations in the switches. We can have something by using meters but that is not what we want. We want to have guarantees of minimum delays in the network. If somebody in this list has any idea, please share. Regards. Fabio.
Enviada do meu iPad > Em 23/06/2014, às 06:48, Alex Reyes <alexr.drea...@gmail.com> escreveu: > > Hi to all, > > I am using PoX controller and want to add few scripts for QoS routing, but > for now I don't want to modify switches. I created script that reserves > bandwidth for QoS flows by using Linux HTB scheduling capability. But that is > problematic because flows with low bandwidth requirement experience higher > delays. I am wondering if I somehow can extend this script to provide delay > guarantees as well? > > I have read one interesting paper about providing delay guarantees with > OpenFlow by sending probe packets from controller to estimate delay on links, > but there is no dedicated queues for sessions like in my case. > > Can u please give me few tips how to estimate how much bandwidth I should > allocate for session not to exceed delay bounds (if there is some way)? > > Best Regards, > > Alex > _______________________________________________ > openflow-discuss mailing list > openflow-discuss@lists.stanford.edu > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
