Armin, the page sizes don't depend of the TCP version. You can see that at the begining of the simulation, the page sizes are equal, but after a few seconds, maybe, the size pages are different.
why?. the NS-2 web traffic module models the web traffic interaction as realistics as it's possible, and it's modeled such Statistical distributions, and some of them depend of the time. So, if you use different TCP protocols (for example, RENO) , with different timers, different handle of packets, maybe, some packets will arrive at web server at different times that if you use the other TCP protocol (for example, CUBIC). So, it's produce different web server responses (maybe with different size), and this page will produce different behaviour at client node, and so on... Conclussion: it's imposible to compare the same trace with both protocols..... at least... I don't know best regards salva 2009/1/26 Abfalterer A. <[email protected]> > > Hi, > > I've made a Web traffic simulation similar to this from > "ns-2.33/tcl/ex/web-traffic.tcl". I take the same parameters (e.g. for > page inter-arrival time, object number, etc.) and I want to test it with > different protocols (TCP NewReno and CUBIC). > > First test runs show that the page sizes are not the same for > *different* protocols. For instance, a test run with one session and 10 > pages with NewReno gives me pages of following size (in packets!!!) > > NewReno CUBIC > 170 170 > 1 1 > 9 9 > 1 1 > 2 2 > 4 4 > 1 5 <-- different > 5 1 <-- > 2 9 <-- > 10 1 <-- > > Anybody who has experience with Web traffic simulations and can tell me > the reason? Unfortunatley there is not a lot of literature... > > Regards, Armin > >
