nanog mailing list archives
Re: dual-stack
From: simon () limmat switch ch
Date: Fri, 01 Jun 2007 01:02:40 +0200
Donald Stahl writes:
I guess we have different definitions for "most significant backbones". Unless you mean they have a dual-stack router running _somewhere_, say, for instance, at a single IX or a lab LAN or something. Which is not particularly useful if we are talking about a "significant backbone".Rather than go back and forth- can we get some real data?
Yes please, I like data!
Can anyone comment on the backbone IPv6 status of the major carriers?
Our three Tier-1(?) upstreams AS1299, AS3356, and AS3549 all provide IPv6. Only one of them has dual-stack on our access link, for the other two we have to tunnel into their IPv6 "backbone" through their IPv4 backbone. I don't know exactly how their internal IPv6 networks are built, although with one of them I'm sure they use/used "6PE", i.e. IPv6 "tunneled" over an IPv6-agnostic MPLS core (learned this from trouble tickets, sigh). But all three offer decent IPv6 connectivity - e.g. we rarely observe gratuitous routing over an ocean and back, or order-of-magnitude RTT or loss-rate differences between IPv4 and IPv6. Our own backbone has been dual-stack for a couple years now, but I guess this just shows that we can't be a "major carrier" - same for many other national "academic" backbones as well as GEANT, the backbone that interconnects those. Same in the US with Internet2 and the regional research/education networks. -- Simon. (AS559)
Current thread:
- Re: NANOG 40 agenda posted, (continued)
- Re: NANOG 40 agenda posted Perry Lorier (May 29)
- Re: NANOG 40 agenda posted Nathan Ward (May 29)
- RE: NANOG 40 agenda posted michael.dillon (May 30)
- Re: NANOG 40 agenda posted John Curran (May 29)
- RE: NANOG 40 agenda posted Tony Hain (May 30)
- Re: NANOG 40 agenda posted Randy Bush (May 30)
- dual-stack [was: NANOG 40 agenda posted] Patrick W. Gilmore (May 30)
- Re: dual-stack [was: NANOG 40 agenda posted] Donald Stahl (May 30)
- Re: dual-stack [was: NANOG 40 agenda posted] Merike Kaeo (May 30)
- Re: dual-stack [was: NANOG 40 agenda posted] JORDI PALET MARTINEZ (May 30)
- Re: dual-stack simon (May 31)
- Re: NANOG 40 agenda posted Jared Mauch (May 30)
- RE: NANOG 40 agenda posted Tony Hain (May 30)
- Re: NANOG 40 agenda posted Mark Tinka (May 29)
- Re: NANOG 40 agenda posted Chris L. Morrow (May 29)
- Re: NANOG 40 agenda posted Valdis . Kletnieks (May 29)
- Re: NANOG 40 agenda posted Donald Stahl (May 29)
- Re: NANOG 40 agenda posted Nathan Ward (May 29)
- Testing IPv6 support on th client's machine (Was: NANOG 40 agenda posted Stephane Bortzmeyer (May 30)
- Re: Testing IPv6 support on the client's machine (Was: NANOG 40 agenda posted Nathan Ward (May 30)
- Re: NANOG 40 agenda posted Chris L. Morrow (May 29)