Sequential (174) Binding

https://johnkamchihau.blogspot.com/2026/09/blog-post.html?m=1

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Ref: https://johnkamchihau.blogspot.com/2026/08/unzui-is-my-neighbour.html?m=1

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John: Take a look. https://johnchihau.blogspot.com/2026/05/httpschihaukam_01106859427.html?m=1 . It said,  "There're 2 Cache Network.  They are Tel Cache Network and IP Cache Network. ".

Me: Only 2.

John: Yes,

Me: Why don't we establish a 3rd Cache network called " Domain name Cache network. "?

John: Because,  it's too costly to build a 3rd cache network.  Therefore, to handle the issue of Domain name, we use the method as the picture above. For example,  I don't know the IP of a Domain name. I leave the receiver IP empty. What will happen?

Me: The domain name of "http://test.com" will be transmitted to the Domain name server bit by bit.

John: Yes, and then,  Domain name server will do the IP-look up.

Me: Yes,

John: However,  It's time consuming. 

Me: Yes, therefore,  there's not only 1 DN server. There're over 1000 DN server. 

John: 1000 DN server ?

Me: The more DN servers,  the faster the IP look-up.

Me: Yes,.