Hi all, We've submitted a -04 version of the b4-translated-ds-lite draft. It describes the per-user-state IPv4-over-IPv6 mechanism with port set support, which can be achieved through some extensions to ds-lite. There are discussions going on upon this topic during and after the Interim meeting. We've received quite a lot offline comments/suggestions, and made progresses accordingly.
The draft is available on http://tools.ietf.org/html/draft-cui-softwire-b4-translated-ds-lite-04 Please provide your valuable comments. And hopefully we'll present it in Taipei. u--- A new version of I-D, draft-cui-softwire-b4-translated-ds-lite-04.txt has been successfully submitted by Qiong Sun and posted to the IETF repository. Filename: draft-cui-softwire-b4-translated-ds-lite Revision: 04 Title: Lightweight 4over6 in access network Creation date: 2011-10-30 WG ID: Individual Submission Number of pages: 24 Abstract: The dual-stack lite mechanism provide an IPv4 access method over IPv6 ISP network for end users. Dual-Stack Lite enables an IPv6 provider to share IPv4 addresses among customers by combining IPv4-in-IPv6 tunnel and Carrier Grade NAT. However, in dual-stack lite, CGN has to maintain active NAT sessions, which could become the performance bottom-neck due to high dynamics of NAT entries, memory cost and log issue. This document propose the lightweight 4over6 mechanism which moves the translation function from tunnel concentrator (AFTR) to initiators (B4s), and hence reduces the mapping scale on the concentrator to per-customer level. For NAT44 translation usage, the mechanism allocates port restricted IPv4 addresses to initiators in a flexible way independent of IPv6 network in the middle. The IETF Secretariat _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
