Not at all. What I'm trying to say is that the IPv6 RIB is already growing at about 60% y/y. Further, the transition to IPv6 _may_ trigger de-aggregation within the IPv4 RIB, as we maximize the utilization of the v4 address space.
Given these two factors, I'm highly skeptical of a 15% growth rate. Tony On May 31, 2011, at 9:50 AM, Sriram, Kotikalapudi wrote: >> Not to mention the fact that IPv6 is going to have a significant >> contribution. >> >> Tony > > I think you are saying (extending Tom's observation) that the transition to a > FIB scalability solution possibly should happen sooner due to IPv6 growth > (as compared to that based on IPv4 growth considerations alone). > Whenever such transition occurs, it would be beneficial for BGPSEC > because engineered RIB capacity would be good for a far longer period. > > The following related observations regarding the RIB model are worth noting. > The model assumes 15% yearly growth for # unique prefixes or total # > prefix-paths. > Currently we do not explicitly break it down between IPv4 and IPv6. > Initially the bulk of the 15% growth would be due to IPv4 but one can expect > that after a period of time, the IPv4 growth would trend down to a lower > level while the IPv6 growth would contribute increasingly to the overall 15% > yearly growth in announced prefixes. > > The model is parameterized and further refined projections for > IPv4 and IPv6 can be incorporated when available. > > The BGPSEC RIB estimate for a given total # prefix-paths is minimally > sensitive to the mix of > IPv4 and IPv6. That is because a very high percentage of octets in a signed > update is due > to the signatures, and the sig size (for a given sig algorithm) is > independent of IPv4 or IPv6. > > Sriram > >>> >>>> ----- Original Message ----- >>>> From: "Sriram, Kotikalapudi" <kotikalapudi.sri...@nist.gov> >>>> To: "sidr wg list" <sidr@ietf.org> >>>> Sent: Tuesday, May 24, 2011 2:28 PM >>>> Subject: [sidr] RIB Size Estimation for BGPSEC >>>> >>>> >>>> In response to a request during Q&A at the SIDR WG meeting, April 1, in >>> Prague, >>>> I am posting the results of modeling and estimation of the RIB size for >>> BGPSEC. >>>> (I plan to present this work at the SIDR WG meeting in Quebec.) >>>> >>>> Here is the link for the slides: >>>> > http://www.antd.nist.gov/~ksriram/BGPSEC_RIB_Estimation.pdf > > -- snip -- _______________________________________________ sidr mailing list sidr@ietf.org https://www.ietf.org/mailman/listinfo/sidr
