The IESG has approved the following document: - 'Low Density Parity Check (LDPC) Staircase and Triangle Forward Error Correction (FEC) Schemes ' <draft-ietf-rmt-bb-fec-ldpc-08.txt> as a Proposed Standard This document is the product of the Reliable Multicast Transport Working Group. The IESG contact persons are Magnus Westerlund and Lars Eggert. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-rmt-bb-fec-ldpc-08.txt Technical Summary This document is an optional Building Block usable to fully define an RMT Transport Protocol. It fully-specifies Low Density Parity Check (LDPC) Forward Error Correction (FEC) Codes within the guidelines of draft-ietf-rmt-fec-bb-revised. It also specifies procedures and packet-header fields, as required by draft-ietf- rmt-fec-bb-revised. The combination of this document and draft-ietf-rmt-fec-bb-revised allows the implementation of an interoperable Forward Error Correction scheme usable in the context of an RMT transport protocol (e.g. LCT/ALC or NORM). LDPC FEC codes generate parity symbols using a sparse set of source symbols. The LDPC codes described in this document belong to the class of large block codes, which means they can easily operate on blocks that are composed of a huge number of source symbols. For bulky information content, this is a great advantage over similar small-block FEC codes, like the popular Reed-Solomon codes, that can also work over a packet erasure channel. Working Group Summary There is consensus in the WG to publish these documents. Document Quality The authors have a working, open source implementation of the FEC algorithms this document describes. The FEC implementation has been used in working RMT protocol code. Brian Adamson is the Document Shepherd. Magnus Westerlund is the Responsible Area Director. Note to RFC Editor Section 4.2.4.2: OLD: The FEC-OTI-Scheme-Specific-Info contains the string resulting from the Base64 encoding (in the XML Schema xs:base64Binary sense) [RFC4648] of the following value: NEW: The FEC-OTI-Scheme-Specific-Info contains the string resulting from the Base64 encoding [RFC4648] of the following value: Section 11.1 Normative References: Please move the following reference: [RFC3453] Luby, M., Vicisano, L., Gemmell, J., Rizzo, L., Handley, M., and J. Crowcroft, "The Use of Forward Error Correction (FEC) in Reliable Multicast", RFC 3453, December 2002. To Section 11.2 Informative References _______________________________________________ IETF-Announce@ietf.org https://www.ietf.org/mailman/listinfo/ietf-announce
