v4 vs v6 issue with facebook

Brian E Carpenter brian.e.carpenter at gmail.com
Thu Jun 14 09:20:13 CEST 2012

Having resolved to avoid social networks as long as humanly possible,
I have no experience with FB, but this sounds like desynchronization
within some sort of replicated storage system, or like a CDN where
only some sites are dual-stacked. It's an interesting point and it might
need to be mentioned in draft-ietf-v6ops-icp-guidance, if that is
the explanation.

   Brian Carpenter

On 2012-06-14 07:49, Roger Jørgensen wrote:
> I know I'm not the only one that have seen this but anyway here we go, a
> morning rant.
> (The setup at home is IPv4/IPv6 on the same LAN, any device get both if
> they support both)
> First off, it's really really great that facebook have enabled A and AAAA
> on their primary hostname, excellent :-)
> A while back I started to notice that www.facebook.com and
> www.v6.facebook.com had a delay. I could do an update on either side and
> it took a while (some hours) before it was seen on the "other" side. Same
> seen both from windows and mac, different browsers and different IPv4
> and/or IPv6 network, it's related to the IPv4 and IPv6 itself.
> After 6.June, or in reality a few days earlier, when Facebook introduced
> AAAA on www.facebook.com I started to notice the same delay, my wife
> confirmed it a few days ago by complaining about not updated comments on a
> picture we both have commented on and know who have said what on. Seems
> like the ticket is desynched to from the comments, we both see the notice
> about a comment but can't find it anywhere on the above mention picture.
> Earlier today (GMT+1 time) I did a few comments from home over v6, now, 2
> hours later I can still not see them over v4...
> ...

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