On Aug 19, 2011, at 5:17 AM, Rémi Després wrote: > Also, one of his slides has "4rd aka Stateless DS-lite". He knows, as you > know, that I had expressed strong opposition to this badly reductive view (DS > lite is hub and spoke, has no NAT in CPE's, ...).
Let me fill you in on some history. The term "Dual Stack Lite" came into being during a discussion at a cafe between Alain Durand and I. It was June 2008, and Alain was in Paris for the ICANN meeting while still working for Comcast. We had been discussing the various pros and cons of tunneling vs. dual-translation for a while. Alain was emphasizing that what was of most importance to him as an ISP, was that he not be burdened with provisioning IPv4 within the ISP network itself. However, in all cases the service to the subscriber was intended to be dual-stack. So: "Dual-stack" service but "lighter" on the ISP in terms of management and provisioning. Thus the term "dual-stack lite" was born. >From the beginning the "lite" term was about having less IPv4 in the access >network for the operator to manage and provision, while still providing >dual-stack service to the subscriber. 4rd fits that, as does RFC 6333. The >solution details are just that - details. - Mark _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
