Hi Med, Thanks for the analysis. I have a small question: Compliance with RTP/RTCP applications what does this mean?
(BTW this is what my spell checker gave :-) ) Regards, Behcet > Hi Rémi, > > Thank you or your answer but my question was not on the CPE side but the > operations at the border router side. > > Cheers, > Med > > -----Message d'origine----- > De : Rémi Després [mailto:despres.r...@laposte.net] > Envoyé : lundi 12 septembre 2011 17:05 > À : BOUCADAIR Mohamed OLNC/NAD/TIP > Cc : Softwires-wg > Objet : Re: [Softwires] Analysis of Port Indexing Algorithms > (draft-bsd-softwire-stateless-port-index-analysis) > > > Le 12 sept. 2011 à 16:18, <mohamed.boucad...@orange-ftgroup.com> > <mohamed.boucad...@orange-ftgroup.com> a écrit : >> ... >> To double check the ability of 4rd-addmapping algo to support > differentiated port sets without any state on the BR, could you please > provide > some examples to show this behaviour? FWIW, below are listed some > configuration > proposals: > > With 4rd-addmapping, of port-set sizes are directly derived from lengths of > delegated IPv6 prefixes. > Thus, if CPEs A and B have IPv6 prefixes of respective lengths L and L+k, the > port set of B is 2^k times smaller than that of A. > > Besides that, IPv6 prefixes are assigned without any constraint coming from > IPv4. > >> (1) Differentiated port sets bound to distinct IPv4 address >> * Port sets of 4096 ports when the shared IPv4 belongs to POOL_IPv4@_1 >> * Port sets of 1024 ports when the shared IPv4 belongs to POOL_IPv4@_2 >> >> (2) Differentiated port sets bound to the same IPv4 address (Because 0-4095 > range is excluded, (n+1)*4096 + m*1024 = 2^16)) >> * Port sets of 4096 ports assigned to n CPEs >> * Port sets of 1024 ports assigned to m CPEs > > First, note that, because of privileged-port exclusion for fairness, port-set > sizes of 4rd are 15/16 * 2^k. > > For (1): > - POOL_IPv4@_1 has IPv6 prefixes having 4-bit Port-set IDs (and have > 15/16*4096=3840 ports per CPE). > - POOL_IPv4@_1 has IPv6 prefixes having 6-bit Port-set IDs (and have > 15/16*1024=960 ports per CPE). > > For (2): Assign IPv6 prefixes of length L to n CPEs, and IPv6 prefixes of > length > L+2 to m CPEs. > > OK? > > Cheers, > RD > > > > _______________________________________________ > Softwires mailing list > Softwires@ietf.org > https://www.ietf.org/mailman/listinfo/softwires > _______________________________________________ Softwires mailing list Softwires@ietf.org https://www.ietf.org/mailman/listinfo/softwires
