A
...
I said it in part, because AS_SET has gone, precisely because its
just too hard to do in BGPSEC, as I understand it. The justification
is "its not useful" but its removed because of its impact on the
emerging protocol modifications.
AS_SET is hard to do, but the principle reason for deprecating it in
IDR was because nobody appears to use it (properly). Measurement
indicate a very, very tiny number of updates made use of AS_SET, and
further examination of those
indicated a likely misunderstanding of the "feature" by the ASes in question.
Steve
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