On Apr 22, 2009, at 5:48 PM, Jack Bates wrote:
Joe Provo wrote:
And the overall message is that only the (prefix holder|originating
ASn[s]) can tell you if it is intended or not. Sadly, this is not
a useful metric for a third-party to use to determine prefix
annoucnement legitimacy. Perhaps an update to RPSL to allow for
intentional multiple origins is overdue?
Legitimacy no, but it does lead one to believe that most anycast
(given > 3 locations) is homogeneous. I would love multiple origin
support.
There are tons which have 2 origin ASes. I realize that's not a lot
of locations by today's anycast standards, but it is probably still
common.
OTOH: "Serious" anycast obviously requires more than 2, so I grant
your point. The overwhelming majority of anycast is done from
homogeneous origin AS.
Which means I was right. :)
--
TTFN,
patrick
