weird BGP cisco-ism? [problem resolved]

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==>I redistribute in a similar way, and have the statics to null0 as well.
==>Still insisted on flapping at least twice every time it got the brief
==>hit on the /24 subnet coming from the outside world.

What routing protocol do you use? If you're using a protocol which uses a
hold-down (read: RIP), the holddown period causes the route to be
withdrawn while marked as inaccessible in the IGP, and re-announced when
the hold-down period goes away and the static route gets inserted.