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



Doesn't the issue persist independent of the characteristics based on
which a path gets selected? Independent of *how* a path gets selected, you need to decide *who* selects it (or who selects which part of it).

Well, that's true of course. But nothing can change the fact
that the originating host chooses the source address and destination
address that the packet starts out with, and all subsequent choices
depend on that.

Brian,

fully agree, but my point is that our new routing architecture may give
more control to the sender:  By selecting a transit address in addition
to an edge address, the sender will be able to fix an intermediate
point on the route towards the receiver.  Thereby, it will be able to
select the ingress link at the receiving edge network.  Today, it is the
/receiving/ edge network that selects the ingress link -- through BGP.

- Christian



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