RE: [kNT] akamai

[Emanuele Parravicini <parravic@xxxxxxxxxx>]

Ok Nick,

I read, I tried to understand and now I try to explain the process with my
own words...

1- I type on my browser "www.about.com"

2- "My" DNS server try to resolve www.about.com: it sends a request to the
authoritative DNS server for about.com. This in turn sends a request (based
on my DNS server's IP address) to an origin server that retrieve the html
static page with "akamaized" references (like
a102.g.akamai.net/6/.../img.gif). 

(by the way... is the "akamaizing" of the references done statically by some
software based on some management information?...)

3- My browser downloads the static page and try to solve
"a102.g.akamai.net/6/.../img.gif" in order to get the image

4- My DNS server queries one of the "akamai.net" root DNS server (e.g.
ZC.AKAMAITECH.net) and in turn it directs the address resolution to one (the
"best") of the authoritative DNS server for g.akamai.net (e.g.
n3g.akamai.net); this is done by the use of a set of metrics.

5- n3g.akamai.net has the skill to resolve the host name (a102 in our
example). This name is associated with more than one server. My browser will
get the IP address of the "optimal" server (maybe the one that actually has
less open requests)

Do I get it right?

Emanuele