Modification of RIPE-181's as-in/as-out attributes
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Curtis Villamizar
curtis at ans.net
Wed Nov 1 03:49:30 CET 1995
In message <199510311942.AA07667 at cat.isi.edu>, Cengiz Alaettinoglu writes: > > I like this idea. There is only one problem that I see with it. The > as numbers in as-in and as-out lines are often used (by tools like > prpath and prtraceroute) to deduce the topology of the Internet. If an > AS only specifies a policy like: > > aut-num: AS2 > as-in: from (NOT AS1) 5 accept ANY > > then prpath has no way of deducing the neighbors of AS2. Doesn't that deduction belong in the inet-rtr ifaddr and peer lines? > aut-num: AS2 > neighbor-list: AS3, AS4, AS5, AS1 # pehaps with router addresses? This is reasonable for AS that don't provide inet-rtr records for their routers (I suspect most). Curtis
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