IP over Resilient Packet Rings (iporpr)

Last Modified: 2005-05-03

Additional information is available at tools.ietf.org/wg/iporpr


Internet Area Director(s):

Internet Area Advisor:

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


Mapping of IP/MPLS packets into IEEE 802.17 (Resilient packet ring) Networks (35715 bytes)

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