nanog mailing list archives

Re: Peering Table Question


From: "Mark Borchers" <markb () infi net>
Date: Fri, 21 Apr 2000 10:21:51 -0500


You omitted the fact that the 1500 byte packets carry a bunch
of paid advertising, and thus are already revenue-producing.

On 20 Apr 00, at 1:42, I Am Not An Isp wrote:

Simplistic example: Network A hosts big web sites.  Network B has a 
gazillion dial-up users.  The two networks peer at MAE-East and 
MAE-West.  The web sites are in San Jose, the dial-up users are in DC.

Typical TCP flow looks like this: 1500 byte packet goes from web server to 
MAE-West on Network A, then transfers to Network B (because of "hot potato" 
routing) and comes across the country to DC destined for dialup user.  Then 
a 64 byte ACK goes from DC to MAE-East on Network B, then transfers to 
Network A where it rides to San Jose.

In Other Words: Network B is carrying 1500 byte packets 3000 miles, and 
Network A is carrying 64 byte packets 3000 miles.

<snipped for brevity>
 
In summary, there is nothing wrong with settlements to help off-set unequal 
network costs.  It is a perfectly valid business practice.  Nor, IMHO, does 
it make one network a "customer" of the other.  The two networks are just 
trying to share everything equally, including network costs.




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