----- Original Message ----- > From: "Matthew Petach" <[email protected]>
> On Mon, Sep 2, 2013 at 7:33 PM, Jorge Amodio <[email protected]> > wrote: > > > Here is another bit of data... www.apple.com not reachable from a > > machine > > using Google's NS, reachable from an iPad using TWC NS > > > > IP addresses returned by each are different ... could be load > > balancing, or > > creative (broken) traffic engineering > Far more likely to be simply due to Akamai > localizing the IP addresses to be as "close" > to the resolving nameserver as possible; > so, when using Google DNS, you end up > at an Akamai node "close" to the Google > DNS server; when using the TWC nameservers, > you end up pointing to an Akamai node closer > to those TWC nameservers. > > Not a case of "broken" traffic engineering at all. Sure it is. It's assuming that the geographic location of a customer resolver server has anything whatever to do with the geographic location of the end node, which it's not in fact a valid proxy for. Cheers, -- jra -- Jay R. Ashworth Baylink [email protected] Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274
