Think of AS's as countries (not the best analogy but...)

If you need to get to the UK from Japan thru the US, then the route would be 
from Japan ---->US---->UK, right?

Now once you land in the US, say in LA, then the US will decide how you will 
make it to the UK through the US.

For ex. US might want you to fly straight to NY and then to London or US 
might want to first fly to Detroit, then NY and then London or some other 
way.

Thus, AS1 (Japan) knows only of getting to the UK thru the US but cannot 
dictate how that traffic will get routed thru the US to reach the UK.

A little clearer??

;->




>From: "Mwalie W" 
>Reply-To: "Mwalie W" 
>To: [EMAIL PROTECTED]
>Subject: RE: BGP Help! [7:70618]
>Date: Fri, 13 Jun 2003 06:05:42 GMT
>
>Hi,
>
>I have come across that Cisco statement before: I guess it means that one 
>AS
>does not influence the routing policies of another AS :)
>
>In other words (hoping I am right), AS1 implements its own internal routing
>policy, as will AS2 and AS1 will not dictate to AS2 how AS2 should route
>AS1's traffic through AS2.
>
>Honestly, I wish I could get clearer explanation from the members :)
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