On 16 Sep 2019, at 18:03, john heasley <[email protected]> wrote: >> Furthermore, excessively long paths will use more memory
> Not significantly. It is not length that represents large consumption > by AS-PATHs, its variance of paths in the RIB. ie: no sane > implementation copies the path to every RIB entry, its a pointer/reference. An extra AS hop takes six bytes on the wire: two for the 16-bit AS path and four for the 32-bit AS path. AS path prepending (all of it, not just the excessive stuff) increases the average AS path length by 0.4 - 0.5, that's about 15% (something like 3.5 -> 3.9 / 4.1 -> 4.6, depending on your vantage point). Iljitsch _______________________________________________ GROW mailing list [email protected] https://www.ietf.org/mailman/listinfo/grow
