On 20 June 2013 13:07, Bill Woodcock <woody@pch.net> wrote:
On Jun 19, 2013, at 7:21 PM, Benson Schliesser <bensons@queuefull.net> wrote:
The sending peer (or their customer) has more control over cost.
I'll assume that, by "sending peer," you mean the content network. If so, I disagree. The content network has no control whatsoever over the location of the eyeball customer. The eyeball customer has sole control over his or her own location, while the content network has sole control over the location from which they reply to requests.
Therefore, control is shared between the two sides. And both are incentivized to minimize costs. If both minimize their costs, overall costs are minimized. That's why this system works.
I think his point was that the receiving side can massage their BGP announcements all they like but the sending network has more instantaneous control over how the traffic will flow. This is before analysis, communication, application of policies / contractual arrangements, de-peering etc.etc. kick in. cheers Marty