Well, all terminals attached to a given APN will receive the same router advertisements from the GGSN, so having two IPv4 global addresses per APN would simply mean that each primary PDP context would get two 6to4 addresses, but the limit will still be 64k primary PDP contexts per APN.
As for your question, to say a number, 500k primary PDP contexts on a single APN seems quite realistic (assuming a GGSN supporting 1 million PDP contexts). /Juan Brian E Carpenter wrote: > > Juan-Antonio Ibanez wrote: > ... > > 2) Would the /64 prefix allocation preclude the use of the 6to4 > > transition mechanism in 3GPP? > > 6to4 relies on a /48 prefix, meaning that only 64k mobile nodes (or > > rather "primary" PDP contexts) would be allowed on a given APN that > > supports 6to4. > > Are you assuming that the APN has exactly one globally routable IPv4 > address? If so, it can only own one 6to4 /48 prefix, i.e. 64k /64s > as you say. But if the APN has 2 IPv4 addresses, it can have two > 6to4 prefixes, etc. > > What is the realistic requirement for the number of primary PDP > contexts per APN? > > Brian > -------------------------------------------------------------------- > IETF IPng Working Group Mailing List > IPng Home Page: http://playground.sun.com/ipng > FTP archive: ftp://playground.sun.com/pub/ipng > Direct all administrative requests to [EMAIL PROTECTED] > -------------------------------------------------------------------- -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------
