Re: Re: ISP Policies

[Rohit Gupta]

James, So this provider would select the path with the longer AS_PATH length and would advertise this one to its peers (if any). I believe then its for the others to decide if they want to take this route or not. Is my understanding correct? Thanks, Rohit Mtech Comp Sc. Institute of Technology Banaras Hindu University ----- Original Message ----- From: "James" <[EMAIL PROTECTED]> To: "Rohit Gupta" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, September 10, 2004 11:42 AM Subject: Re: ISP Policies > > On Fri, Sep 10, 2004 at 11:36:58AM +0530, Rohit Gupta wrote: >> On a related note : Do ISPs ever tweak around with Local Prefs and weights so as to select BGP paths with greater AS PATH length? >> >> Would it ever make sense for a provider to chose a longer AS PATH length BGP route against a shorter AS PATH length route? >> > > Yes many do -> Prefer your customer routes via customer interfaces, over > transit and peering interfaces. > > Higher LP over cust interfaces = more bits = more revenue. There is nothing > wrong with this IMO, considering many of them who do this, also provide > a community for customers to override this behaviour.

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