Question: Operationally, is an AS_SET ever used in the *middle* between AS_SEQUENCEs? Or, should one simply give zero credence to it?
[Even as I was composing this post, Jeff has already given a helpful answer/suggestion to this in the other thread :) Please see: https://mailarchive.ietf.org/arch/msg/sidrops/E-SS_hUgxuS5PmjToUC96UEWluU/ ] Of course, additional thoughts/comments are welcome. The ASPA verification algorithm gets slightly more complicated if we should bother to accommodate the case of AS_SET in the middle between AS_SEQUENCEs. (Note: AS_SET at the beginning (rightmost and towards the origin) is OK. We include it in our consideration.) As I recall, our (NIST) measurements based on Routeviews/RIPE-RIS data in the past did not show any AS_SETs in the middle. WG/operator inputs on the above question would help decide to either keep or avoid the above-mentioned additional complication (AS_SET in the middle) in the ASPA algorithm. Thank you. Sriram _______________________________________________ GROW mailing list [email protected] https://www.ietf.org/mailman/listinfo/grow
