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

[Christian Vogt <christian.vogt@nomadiclab.com>]

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



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