On Jun 4, 2013, at 11:42 PM, Lorenzo Colitti <lore...@google.com<mailto:lore...@google.com>> wrote: I still don't understand. What the above sentences seem to be saying is that "there are bits available for semantic prefix assignment because RIRs assume /48 but users don't actually get /48". Is that your point?
No. There are bits available because (1) RIRs may well allocate them even to ISPs that assign /48s to end-users and (2) RIRs definitely do not assume allocations smaller than /48 per customer, so ISPs can get the allocation they need and use some of the bits for a semantic prefix, assigning a wider prefix to the end-user (e.g., a /56).
-------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
