I want to follow up this topic on the list. I exchanged few off-listed emails with Brian to ask his opinion of using flow label. It seem the way the ER to encapsulate every packet of a given host is a compatible use of flow label. Brian, can you confirm that please?
Thanks, Yiu On 7/30/10 4:57 PM, "Brian E Carpenter" <[email protected]> wrote: >>> Hi, >>> >>> In RFC 3697, it says: >>> >>> "A flow is a sequence of packets sent from a particular source to a >>> particular unicast, anycast, or multicast destination that the source >>> desires to label as a flow." >>> >>> It later says the usage of a flow: >>> >>> "The usage of the 3-tuple of the Flow Label and the Source and >>> Destination Address fields enables efficient IPv6 flow >>> classification, where only IPv6 main header fields in fixed positions >>> are used." >>> >>> I am confused why we can't use a flow label to effectively identify a flow >>> from a host behind a CPE in the AFTR. In what part this usage is against the >>> specification? > > The devil is in the details. You'd have to define the use case completely > before I (as a co-author of 3697) would try to answer the question. > > The use case still has to work with hosts that do not set a flow label, > which is of course essentially all of them today. > > Brian _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
