+1 On Mar 23, 2011, at 10:34 PM, Tomoki Murai wrote:
> > +1 > I support 4rd as a WG item. > > Tomoki >> Hello all, >> >> >> Le 21 mars 2011 à 22:29, IESG Secretary a écrit : >> >>> A modified charter has been submitted for the Softwires (softwire) >>> working group in the Internet Area of the IETF. The IESG has not made any >>> determination as yet. The modified charter is provided below for >>> informational purposes only. >> >>> Please send your comments to the IESG >>> mailing list ([email protected]) by Tuesday, March 29, 2011. >> >> The main comment of this mail is a suggestion to add 4rd to the charter, in >> view of the following: >> - It is a tunnel solution for IPv4 across IPv6 networks >> - Implementations have already been made >> - Some ISP's have expressed their preference for this stateless solution >> over a stateful solution (DS-lite) >> - A proposed specification is available for WG comments >> >> It is distinct from other solutions in that: >> - Unlike 6rd it is for IPv4 over IPv6 >> - Unlike DS-lite, it optimizes routing between CE's with point to multipoint >> tunnels and needs no CGN. >> - Unlike Mesh solutions, it doesn't need a (stateful) BGP between AFBR's >> (it's route selections are stateless). >> >> Proposed additions to the charter text are in line. >> >> >> Regards, >> RD >> >> >>> >>> Softwires (softwire) >>> --------------------------------------------------- >>> Current Status: Active Working Group >>> >>> Chairs: >>> Alain Durand <[email protected]> >>> Yong Cui <[email protected]> >>> >>> Internet Area Directors: >>> Ralph Droms <[email protected]> >>> Jari Arkko <[email protected]> >>> >>> Internet Area Advisor: >>> Ralph Droms <[email protected]> >>> >>> Mailing Lists: >>> General Discussion: [email protected] >>> To Subscribe: [email protected] >>> Archive: >>> http://www.ietf.org/mail-archive/web/softwires/current/maillist.html >>> >>> Description of Working Group: >>> >>> The Softwires Working Group is specifying the standardization of >>> discovery, control and encapsulation methods for connecting IPv4 >>> networks across IPv6 networks and IPv6 networks across IPv4 networks >>> in a way that will encourage multiple, inter-operable >>> implementations. >>> >>> For various reasons, native IPv4 and/or IPv6 transport may not be >>> available in all cases, and there is a need to tunnel IPv4 in IPv6 >>> or IPv6 in IPv4 to cross a part of the network which is not IPv4 or >>> IPv6 capable. The Softwire Problem Statement, RFC 4925, identifies >>> two distinct topological scenarios that the WG will provide >>> solutions for: "Hubs and Spokes" and "Mesh." In the former case, >>> hosts or "stub" networks are attached via individual, >>> point-to-point, IPv4 over IPv6 or IPv6 over IPv4 softwires to a >>> centralized Softwire Concentrator. In the latter case (Mesh), >>> network islands of one Address Family (IPv4 or IPv6) are connected >>> over a network of another Address Family via point to multi-point >>> softwires among Address family Border Routers (AFBRs). >>> >>> The WG will reuse existing technologies as much as possible and only >>> when necessary, create additional protocol building blocks. >>> >>> For generality, all base Softwires encapsulation mechanisms should >>> support all combinations of IP versions over one other (IPv4 over >>> IPv6, IPv6 over IPv4, IPv4 over IPv4, IPv6 over IPv6). IPv4 to IPv6 >>> translation mechanisms (NAT-PT), new addressing schemes, and block >>> address assignments are out of scope. DHCP options developed in this >>> working group will be reviewed jointly with the DHC WG. RADIUS >>> attributes developed in this working group will be reviewed jointly >>> with the RADEXT WG. The MIB Doctors directorate will be asked to >>> review any MIB modules developed in the SOFTWIRE working group. BGP >>> and other routing and signaling protocols developed in this group >>> will be reviewed jointly with the proper working groups and other >>> workings that may take interest (e.g. IDR, L3VPN, PIM, LDP, SAAG, >>> etc). >>> >>> The specific work areas for this working group are: >>> >>> 1. Developments for Mesh softwires topology; the Mesh topology work >>> will be reviewed in the l3vpn and idr WGs >>> - multicast >>> - MIB module >>> >>> 2. Developments for 6rd: >>> - multicast >>> - operational specification >>> - RADIUS option for 6rd server >>> - MIB module >>> >>> 3. Developments for Dual-Stack Lite (DS-Lite): >>> - multicast >>> - operational specification >>> - RADIUS option for AFTR >>> - proxy extensions; GI-DS-Lite; DS-Lite with no NAT or NAT on the >>> B4 element >>> - MIB module >>> >>> 4. Finalize discovery and configuration mechanisms for a gateway to >>> use DS-Lite or 6rd; these discovery and configuration mechanisms >>> must take into a account other operating environments such as >>> dual-stack and tunneling mechanisms not defined by the softwire >>> WG. Development of new mechanisms will involve the dhc and/or >>> v6ops WGs as appropriate >> >> 5. Development for 4rd (stateless tunneling for IPv4 over IPv6) >> - architecture and protocol specification >> - operational specification >> - MIB module >>> >>> Other work items would require WG approval and rechartering. >>> >>> Goals and Milestones: >>> Apr 2011 Submit DS-lite RADIUS option for Proposed Standard >>> Apr 2011 Adopt DS-lite operational document as WG document >>> Jul 2011 Submit 6rd RADIUS option for Proposed Standard >>> Jul 2011 Submit GI DS-lite for Proposed Standard >>> Jul 2011 Adopt B4NAT as WG document >> July 2011 Adopt the 4rd architecture an protocol document as WG document >>> Aug 2011 Adopt 6rd operational document as WG document >>> Aug 2011 Adopt Multicast extensions document as WG document >>> Aug 2011 Submit DS-lite operational document for Informational >>> Sep 2011 Submit B4NAT for Informational >>> Nov 2011 Submit Multicast extensions document for Informational >>> Nov 2011 Submit 6rd operational document for Informational >>> Nov 2011 Adopt 6rd MIB module as WG document >>> Nov 2011 Adopt DS-lite MIB module as WG document >>> Nov 2011 Adopt Mesh topology MIB module as WG document >> Nov 2011 Submit the 4rd architecture an protocol document for Proposed >> Standard >> Nov 2011 Adopt the 4rd operational document as WG document >> Nov 2011 Adopt the 4rd MIB module as WG document >>> Nov 2012 Submit 6rd MIB module for Proposed Standard >>> Nov 2012 Submit DS-lite MIB module for Proposed Standard >>> Nov 2012 Submit Mesh topology MIB module for Proposed Standard >> Nov 2012 Submit 4rd operational document for Informational >> Nov 2012 Submit 4rd MIB module for Proposed Standard >> >> >>> >>> >>> _______________________________________________ >>> Softwires mailing list >>> [email protected] >>> https://www.ietf.org/mailman/listinfo/softwires > _______________________________________________ > Softwires mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/softwires > _______________________________________________ Softwires mailing list [email protected] https://www.ietf.org/mailman/listinfo/softwires
