yaimapitu - 5:24 am on Aug 2, 2013 (gmt 0)
Here's some additional information:
Have you verified that the redirect works as intended when you request the page manually?
Yes, all of these rewrite operations have been working for years. :-)
Does bing also ask for the new URL?
Very occasionally... it appears to request any new page soon after it has encountered a new 301 pointing to that new page, but it appears to not directly pursue those 301s after a while, meaning it checks both old and new file names, but not in no particluar connection with each other, time-wise...
Robots never completely stop asking for redirected pages. They just slow down.
... which leaves me curious as to the reason: 301 is about as definite as it gets, so why the bother?
The bingbot seems to behave quite differently from the googlebot when it comes to non-200 responses. I've got a slew of pages that have returned 410 for a year or more. Bing still asks for them regularly; Google never.
Yes, Bingbot is the main perpetrator. Google does not seem to be checking my sites for old 410s, but occasionally keeps looking for old 301s...