On Jan 11, 2011, at 9:10 AM, Shane Amante wrote: > It's probably better to say that a hash algorithm works well where > individual, long-lived flows (regardless of traffic type) are a small-ish > fraction of the physical BW of any individual component-link in a LAG or ECMP > group. It's when those long-lived flows are a substantial portion of > component-link's physical BW that a hash algorithm is ineffective and you > either need higher capacity component-links or more "creative" techniques.
Statistics we're seeing suggest that long-lived video flows (video-on-demand, streaming media, netflix/youtube/etc) are becoming a fairly large subset of internet traffic. You may have seen Wired's article on it (http://www.wired.com/magazine/2010/08/ff_webrip/all/1) and the far-better-thought-through rebuttal (http://boingboing.net/2010/08/17/is-the-web-really-de.html). -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
