Brian -
My opinion is that, notwithstanding philosophical issues, the recipient is ultimately in control by virtue of being able to withdraw announcements. So, from a pragmatic perspective, it makes most sense to view (a) as the default choice.
This is a very good point.
It also matters that, for the most part, the recipient pays for delivery of packets.
Right, this is the beauty of approach (a): Each side selects from those providers which it has to pay: The sending edge network selects the local egress provider, and the receiving edge network selects the local ingress provider.
Hot-potato routing means ISP(sender) throws the traffic to the ISP(recipient) as soon as possible, meaning ISP(recipient) usually bears most of the long-haul costs.
Could you elaborate more on this? - Christian -- to unsubscribe send a message to [EMAIL PROTECTED] with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg
