RE: A possible solution for source-based site-exit routing

["Aldrin Isaac" <aisaac@bloomberg.com>]

An interesting possibility with the use the of source-constrained
routing table approach.

With source-constrained routing an ISP can negotiate source address
blocks which it will forward for other ISPs/organizations that it
peers with.  This will give the ISP a little more control as to whom
it will provide transit for.  This is, of course, assuming the other
ISPs/organizations it is receiving traffic from are capable of
source-constrained routing.

This is simply to point out that a routing approach could be general
enough to provide multiple uses.