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Re: [RRG] Which Side to Control Ingress Link Selection?
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?
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