On Wed, Apr 14, 2010 at 7:03 PM, Vishwas Manral <[email protected]> wrote: > Hi Brian, > >> Or we can strongly recommend that all hosts set the flow label, so >> that we can use the 3-tuple {source address, dest address, flow label}. > Using a 3-tuple helps in stateless firewalls/ middle boxes/ ECMP, > which cannot/ do-not reassemble all fragments. The 5-tuple is not > available for fragments.
using only the 3 tuple also loses you some granularity in your ecmp decision process... I'm not sure it's a good plan to use the flow label for something it's explicitly not supposed to be used for, and I don't know that you can get enough granularity with just these 3 pieces of 'randomness' to has flows out across wide ecmp paths. More data for the hash seems better. -Chris -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
