On Jun 21, 2012, at 5:36 PM, valdis.kletni...@vt.edu wrote: > On Fri, 22 Jun 2012 08:40:02 +0900, Masataka Ohta said: >> Owen DeLong wrote: > >>> What if my ISP just routes my /48? Seems to work quite well, >>> actually. >> >> Unlike IPv4 with natural boundary of /24, routing table >> explosion of IPv6 is a serious scalability problem. > > Do you have any *realistic* and *actual* reason to suspect that the IPv6 > routing table will "explode" any further than the IPv4 has already? Hint - > Owen's /48 will just get aggregated and announced just like the cable > companies > *already* aggregate all those /20s of customer /32s. Unless Owen multihomes - > at > which point he's a new entry in the v6 routing tables - but *also* almost > certainly a new entry in the v4 routing table. Routing table size depends on > the number of AS's, not the amount of address space the routes cover. > >
Um, unlikely. My /48 is an ARIN direct assignment: 2620:0:930::/48 It's not really aggregable with their other customers. I do multihome and I am one entry in the v6 routing tables. However, I'm actually two entries in the v4 routing table. 192.159.10.0/24 and 192.124.40.0/23. Owen