On Mon, Sep 2, 2013 at 7:33 PM, Jorge Amodio <jmamo...@gmail.com> 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. > But for moments packets get lost at ae0.pr1.dfw10.tbone.rr.com this also > could be TWC routing/peering issues but I don't know how many more levels > of CS I have to go to reach somebody with a clue, after testing my modem > zillion times ... > > Why not just use the TWC nameservers, if thiings work when you use them instead of the Google nameservers? Matt > pete@tango:~$ dig www.apple.com > > ; <<>> DiG 9.8.1-P1 <<>> www.apple.com > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46202 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;www.apple.com. IN A > > ;; ANSWER SECTION: > www.apple.com. 723 IN CNAME > www.isg-apple.com.akadns.net > . > www.isg-apple.com.akadns.net. 49 IN CNAME www.apple.com.edgekey.net. > www.apple.com.edgekey.net. 408 IN CNAME e3191.dscc.akamaiedge.net. > e3191.dscc.akamaiedge.net. 9 IN A 184.86.141.15 > > ;; Query time: 42 msec > ;; SERVER: 8.8.8.8#53(8.8.8.8) > ;; WHEN: Mon Sep 2 21:06:57 2013 > ;; MSG SIZE rcvd: 161 > > pete@tango:~$ dig @209.18.47.61 www.apple.com > > ; <<>> DiG 9.8.1-P1 <<>> @209.18.47.61 www.apple.com > ; (1 server found) > ;; global options: +cmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 20041 > ;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;www.apple.com. IN A > > ;; ANSWER SECTION: > www.apple.com. 1135 IN CNAME > www.isg-apple.com.akadns.net > . > www.isg-apple.com.akadns.net. 50 IN CNAME www.apple.com.edgekey.net. > www.apple.com.edgekey.net. 442 IN CNAME e3191.dscc.akamaiedge.net. > e3191.dscc.akamaiedge.net. 5 IN A 23.42.157.15 > > ;; Query time: 39 msec > ;; SERVER: 209.18.47.61#53(209.18.47.61) > ;; WHEN: Mon Sep 2 21:07:09 2013 > ;; MSG SIZE rcvd: 161 > > > > On Sat, Aug 31, 2013 at 7:26 PM, Jorge Amodio <jmamo...@gmail.com> wrote: > > > > > Hi There, > > > > is anybody having any problems with sites that go through Akamai's CDN ? > > > > I'm having problems to connect to many served by them, just two examples. > > > > www.ti.com > > www.newark.com > > > > Cheers > > Jorge > > > > > >
