On 05/01/17 14:00, Paul Mansfield wrote: > Someone should set up appropriate logging for the upcoming UKNOF > meeting to measure the balance of traffic between IPv4 and IPv6, and > see whether we're all practising what we're preaching ;-)
I wouldn't discourage this, but I would proffer that you're still going to see quite an imbalance. Whilst IPv6 is available to attendees and *most* devices will try to use it, too many services are still missing AAAA records. Google or Netflix might see >50% of their traffic to 5607 go out via IPv6, but the percentile of IPv6 I see going to 5607 is a lot lower than that. The reason as far as I can determine, is that whilst we've got thousands of servers numbered with IPv6 - actively using it for DNS queries and/or apt updates - in too many cases those servers are hosting services that don't have AAAA records. Perhaps the customer doesn't see the benefit yet, doesn't know enough to confidently wield it, or doesn't want the "hassle" of supporting it. But because we *just* provide the server & connectivity, we can't force anyone's hand. Even where we manage a hosting service directly, we might still not control the domain's records. Either way, there's very little impetus there for anyone to break something that is working. If we purposely go out to make our IPv4 connectivity less than good across the board (good luck with that) I can't imagine it'll be a success. This is the thin end of the long tail, and it's going to drag on and on until there's a solid incentive for website maintainers to enable AAAA records. The goal now has to be for it to be important to those that are designing, creating or running services, not those that are hosting the servers. Perhaps a combination of poor IPv4 connectivity (CGNAT hell) and positive discrimination by popular search engines will make a AAAA record a 'must have', but deducting £x/month on the bill just isn't going to cut it for a service that needs to work flawlessly on both address families for the foreseeable future. (The people on this list that also happen to be our customers are going to be among the exceptions to this, I'd expect - so thank you all. If I can help you add some AAAA records on a Bytemark service, please let me know offlist. :)) -- Tom Hill Network Manager Bytemark Hosting http://www.bytemark.co.uk/ tel. +44 1904 890 890
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