Hello all, The new version of the proposed unified 4rd has just ben posted. It is available at: http://tools.ietf.org/html/draft-despres-softwire-4rd-u-03
A major evolution since the previous version has been to have in it two variants. - The Header-mapping variant is as in the previous version - The Encapsulation variant is added after comments received, and accepted, that some use cases cannot be satisfied if the Header-mapping variant is the only one. Compared to the alternative approach of several MAP documents, the single-document approach is expected to avoid duplicate specifications, and to facilitate consistency checks of the design. Besides: - Header-mapping provides more complete transparency to IPv4 packets than solutions using twice the IPv6/IPv4 translation of RFC6145. - It has also the advantage of a simpler and self-sufficient specification. - The algorithm which permits BRs to forward datagram fragments without datagram reassembly is included. - The problem of fragmented datagrams from shared address CEs that must have different Identification if they go to common destinations is covered. - The design re-introduces the Domain IPv6 suffix which in some earlier 4rd designs, and somehow has been lost. - The port-set algorithm is without parameter. All questions and comments will be most welcome. Regards, RD _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
