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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>-----Original Message-----<br>From: Chuck Swiger [mailto:cswiger@mac.com] <br>Sent: Saturday, February 18, 2012 1:04 AM<br>To: Gaurav kansal<br>Cc: bind-users@lists.isc.org<br>Subject: Re: Query Regarding AKAMAI Working Model</p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Hi, Gaurav--<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>On Feb 17, 2012, at 11:15 AM, Gaurav kansal wrote:<o:p></o:p></p><p class=MsoPlainText>> I want to know how AKAMAI works????<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>They work well. :-)<o:p></o:p></p><p class=MsoPlainText><span style='color:black'><o:p> </o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>Ya. They work well. That’s why, majority of content providers are using them. </span><span style='font-family:Wingdings;color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>J</span><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'><o:p></o:p></span></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>> May be this is not the right forum to ask but I am asking this here because AKAMAI heavily depend on its HL-DNS and LL-DNS AND these DNS Servers answer the query based on some input it gets from BGP Routes.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>They've got a fair amount of documentation publicly available describing their CDN network, pushing updates from origin to their Edge servers, Akamai'zed URL format, determining which Edge servers should be returned for a client request, based on geo location, network location, availability and throughput, failover, and so forth.<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText> <a href="http://www.akamai.com/html/technology/products/index.html"><span style='color:windowtext;text-decoration:none'>http://www.akamai.com/html/technology/products/index.html</span></a><o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>It's not completely off-topic, but you'd likely do better to ask them directly if you need more info.<o:p></o:p></p><p class=MsoPlainText><span style='color:black'><o:p> </o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>I search a lot for but didn’t find answer for my question.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>I have few questions about there working model.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'><o:p> </o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>First is, why they are doing CNAME 4 time for each zone??<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>For ex: <o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>;; QUESTION SECTION:<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>;www.cisco.com. IN A<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'><o:p> </o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>;; ANSWER SECTION:<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>www.cisco.com. 236 IN CNAME www.cisco.com.akadns.net.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>www.cisco.com.akadns.net. 268 IN CNAME geoprod.cisco.com.akadns.net.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>geoprod.cisco.com.akadns.net. 206 IN CNAME www.cisco.com.edgekey.net.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>www.cisco.com.edgekey.net. 11010 IN CNAME www.cisco.com.edgekey.net.globalredir.akadns.net.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>www.cisco.com.edgekey.net.globalredir.akadns.net. 257 IN CNAME e144.cd.akamaiedge.net.<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>e144.cd.akamaiedge.net. 7 IN A 125.252.232.170<o:p></o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'><o:p> </o:p></span></p><p class=MsoPlainText><span style='color:#558ED5;mso-style-textfill-fill-color:#558ED5;mso-style-textfill-fill-alpha:100.0%'>What’s the need of doing CNAME 4 times and AKAMAI does this thing for each domain they takes care of.<o:p></o:p></span></p><p class=MsoPlainText><o:p> </o:p></p><p class=MsoPlainText>Regards,<o:p></o:p></p><p class=MsoPlainText>-- <o:p></o:p></p><p class=MsoPlainText>-Chuck<o:p></o:p></p><p class=MsoPlainText><o:p> </o:p></p></div></body></html>