Lars, You are totally right. If there is a single hop, ROHC will be enough.
The next scenarios may have a single hop: - a satellite connection used for providing connectivity in a non-connected area during a short period of time (e.g. journalists covering the arrival of a mountain stage of a cycling competition). - an air-to-ground connection providing Internet connectivity to the passengers of an aircraft, multiplexing a number of simultaneous VoIP flows. Regarding these other two scenarios, perhaps TCM-TF would only be interesting when there is a community network in which packets have to traverse a (frequently high) number of hops: - a wireless Internet connection shared by a number of people in a place with low Internet penetration - a community network, in which a number of people in the same geographical place share their connections in a cooperative way For example, in this scenario a community network with a high number of hops is considered: http://www.guifi.net/en/guifi_zones. There is also a paper about the topology of community networks: "On the topology characterization of Guifi.net" http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=6379103 Thanks for your feedback! Jose -----Mensaje original----- De: tcmtf [mailto:[email protected]] En nombre de Eggert, Lars Enviado el: miércoles, 20 de noviembre de 2013 17:20 Para: [email protected] CC: [email protected]; Martin Stiemerling; [email protected] Asunto: Re: [tcmtf] Improvements in the TCM-TF charter draft v8 Hi, On 2013-11-20, at 10:24, Jose Saldana <[email protected]> wrote: > But if you want to use it in more than a single hop, ROHC has to be > tunneled, and you lose the savings achieved by compression. So the > idea is that a number of packets (multiplexed) share the tunnel overhead. several of the scenarios you describe for TCM-TF seem to be fully addressed by ROHC, i.e., do not seem to have multiple L3 hops that require creation of a tunnel. It would be good to explicitly limit yourself to describing scenarios that do have that requirement. Lars
