--- Valdis.Kletnieks@vt.edu wrote: From: Valdis.Kletnieks@vt.edu One has to wonder how many places are using the prepend-me-harder commands to do traffic engineering, and have absolutely no clue that their prepends are having the opposite effect because the prefix is being dropped entirely by some AS's. ------------------------------------------ Do you think (or is there evidence) that very many ASs use maxas-limit type commands? I have never used it and never had any problems... -------------------------------------- I suppose the exact same issue applies for those places that deaggregate in an attempt to to TE, and the de-aggregated prefixes get munched by somebody's prefix-length filter. ------------------------------------ Only if they're longer than a /24, though; yes? I imagine no one really filters shorter than a /24 these days. scott