--- 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
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 dunno. There was a bug with AS lengths or something not that far back. Didn't effect any of my stuff, but just to be safe I added it to all my routers. I don't know where I came up with the magical 75 number, but it definitely seems reasonable that anything with 75+ ASNs in the path
On 11/10/2010 5:44 PM, Scott Weeks wrote: probably don't deserve to be in my table. Jack
participants (2)
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Jack Bates
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Scott Weeks