IP over Resilient Packet Rings (iporpr) --------------------------------------- Charter Last Modified: 2005-05-03 Current Status: Active Working Group Chair(s): Glenn Parsons Internet Area Director(s): Jari Arkko Mark Townsley Internet Area Advisor: Mark Townsley Mailing Lists: General Discussion:iporpr@ietf.org To Subscribe: iporpr-request@ietf.org In Body: subscribe iporpr Archive: http://www.ietf.org/mail-archive/web/iporpr/index.html Description of Working Group: Resilient Packet Rings (RPR), developed within the IEEE 802.17 RPR WG, provides substantial enhancements in both efficiency and flexibility over current bi-directional ring topologies. Benefits of resilient packet rings include spatial re-use (full utilization of both counter-rotating rings) while maintaining protection switching during media faults, as well as defined mechanisms for topology discovery, congestion control, and protection switching. Reference the IEEE 802.17 RPR WG at http://www.ieee802.org/17/ for further information. IEEE 802.17-2004 is currently published and work is in progress on bridging enhancements. The IPORPR Working Group will produce two documents: 1) An IPORPR definition of how to transport IP/MPLS over 802.17 RPR in "basic mode". This document will cover encapsulation formats (e.g., IPv4/IPv6), how to perform address resolution (e.g., ARP/ND), IP multicast transmission, priority mapping to the RPR "serviceClass", etc. 2) An IPORPR framework that goes beyond "basic mode," describing some of the features and characteristics of 802.17 RPR, and how they might be exploited by, e.g., IP or MPLS. For example, an RPR ring can be accessed in a number of ways: it can be viewed as a "dumb" LAN supporting traditional broadcast like Ethernet ("basic mode"), or its advanced features could be exploited. The IPoRPR WG will coordinate its activities with other appropriate standards bodies and encourage cross participation with those bodies. Coordination will take place with the following bodies in particular: IEEE 802.17 (http://www.ieee802.org/17/) - ITU-T SG15 Q9, 11, 12 (http://www.itu.int/ITU-T/studygroups/com15/sg15.html) Goals and Milestones: Done Publish first draft of the Core IP-over-RPR specification as an Internet Draft. This draft covers the first level of 802.17/IP interaction. May 2005 Publish draft IPoRPR definition for "basic mode" Jun 2005 Publish draft IPoRPR framework document Aug 2005 Submit final draft of definition to the IESG for Proposed Standard Status Sep 2005 Submit final draft of framework to the IESG for Informational Status Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- Jul 2005 Aug 2006 Mapping of IP/MPLS packets into IEEE 802.17 (Resilient packet ring) Networks Request For Comments: None to date.