On Tue, Apr 28, 2009 at 4:06 AM, Jeroen Massar <[email protected]> wrote:
> Elliott Karpilovsky wrote: > > Hello everyone. My name is Elliott Karpilovsky, a student at Princeton > University. In collaboration with Alex Gerber (AT&T Research), Dan Pei (AT&T > Research), Jennifer Rexford (Princeton University), and Aman Shaikh (AT&T > Research), we studied the extent of IPv6 deployment at both global and local > levels. Our conclusions can be summarized by the following three points: > > > > 1.) IPv6 deployment is not seen as a pressing issue. > > 2.) We saw a lack of meaningful IPv6 traffic (mostly DNS/Domain and ICMP > messages), possibly indicating that IPv6 networks are still experimental. > > 3.) Studying Teredo traffic suggested that it may be used for NAT busting > by P2P networks. > > > > Our paper (submitted and presented at PAM 2009) can be found at > http://www.cs.princeton.edu/~elliottk/ipv6study.html<http://www.cs.princeton.edu/%7Eelliottk/ipv6study.html>. > If you have comments or feedback with respect to these results, please > feel free to express them. > > Nasty comment time... > > "To analyze native IPv6 traffic, we use Netflow records collected from an > IPv6 Internet gateway router in a US tier-1 ISP with 11 IPv6 BGP > neighbors. These records were collected from 2008-4-1 to 2008-9-26, and > are taken from the business customers. " > > Sorry to have to make this comment, but the IPv6 side of the Internet is > quite a bit larger than "11 peers". I don't really think that AT&T can > call themselves a "tier-1 ISP" on the IPv6 field (they can on IPv4), > especially as there are these wonderful give-aways as using OCCAID as a > transit: > > [..] > 7 fr-par02a-re1-t-2.ipv6.aorta.net (2001:730::1:2d) 51.944 ms 51.596 > ms 51.915 ms > 8 uk-lon01a-re1-t-1.ipv6.aorta.net (2001:730::1:2a) 60.802 ms 61.405 > ms 61.498 ms > 9 ibr01-ve26.lndn01.occaid.net (2001:7f8:4::7577:1) 37.941 ms 37.797 > ms 37.88 ms > 10 bbr01-p1-0.nwrk01.occaid.net (2001:4830:fe:1010::2) 106.622 ms > 106.538 ms 106.701 ms > 11 r1.mdtnj.ipv6.att.net (2001:4830:e2:2a::2) 145.847 ms 145.762 ms > 146.049 ms > 12 2001:1890:61:9017::2 (2001:1890:61:9017::2) 222.045 ms 222.694 ms > 223.185 ms > 13 mail.ietf.org (2001:1890:1112:1::20) 221.683 ms 221.66 ms 222.839 > ms > > Heck, I can't find a single ISP in GRH with which I can reach AT&T > (where eg www.ietf.org is currently in) from Europe directly. > > Unfortunately, I will have to state that that thus completely makes that > whole paper useless as the data is used is just that: useless. > > I really really really hope that AT&T finally realizes that they have to > start deploying IPv6. > > When they have done that, re-run your "study" and then release those > numbers as then they will maybe be interesting when there are actual > customers on the links. > > Greets, > Jeroen > >
