The IESG has approved the following document: - 'Unidirectional Lightweight Encapsulation (ULE) for transmission of IP datagrams over an MPEG-2 Transport Stream ' <draft-ietf-ipdvb-ule-06.txt> as a Proposed Standard This document is the product of the IP over DVB Working Group. The IESG contact persons are Margaret Wasserman and Mark Townsley. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-ipdvb-ule-06.txt Technical Summary The MPEG-2 Transport Stream (TS) has been widely accepted not only for providing digital TV services, but also as a subnetwork technology for building IP networks. This document describes an Ultra Lightweight Encapsulation (ULE) mechanism for the transport of IPv4 and IPv6 Datagrams and other network protocol packets directly over the ISO MPEG-2 Transport Stream as TS Private Data. ULE specifies a base encapsulation format and supports an extension format that allows it to carry additional header information to assist in network/Receiver processing. Working Group Summary This document was produced by the IPDVB working group. Its contents represent the consensus of the group. Protocol Quality This document was reviewed for the IESG by Margaret Wasserman. Note to the RFC Editor Dear RFC editor, Please make the below changes before publication. Thanks! Page 3, Section 1 (Introduction): Insert extra paragraph after end: OLD: "The MPEG-2 specification [ISO-MPEG2] requires conformant TS Multiplexes to provide Program Specific Information (PSI) for each stream in the TS Multiplex. Other MPEG-2 based transmission standards may also define Service Information (SI)." NEW: "The MPEG-2 specification [ISO-MPEG2] requires conformant TS Multiplexes to provide Program Specific Information (PSI) for each stream in the TS Multiplex. Other MPEG-2 based transmission standards may also define Service Information (SI). A format_identifier value has been registered for ULE [ULE1]. This 32 bit number has a hexadecimal value of 0x554C4531. Transport Streams that utilise the Programme Map Table (PMT) defined in ISO 13818-1 [ISO-MPEG2] and that use the ULE format defined in this document, SHOULD insert a descriptor with this value in the PMT ES_info descriptor loop." ---- Page 6, Section 2 (Definitions): Insert extra paragraph after end: OLD: " *4b Continuity Counter (CC)" NEW: " *4b Continuity Counter (CC)" If the PUSI bit is set to a value of 1, there is one additional field following the TS packet header: *8b Payload Pointer (PP)" ---- Page 23, Section 6.2: Insert extra sentence within paragraph: OLD: "bit Payload Pointer MUST be inserted in the first byte directly following the TS Packet header. The value of the"... ^ NEW: "bit Payload Pointer MUST be inserted in the first byte directly following the TS Packet header."(This reduces the size of the TS Packet payload field that is available for data by one byte.) The value of the"... ---- ADD NEW NORMATIVE REFERENCE: OLD: [RFC2464] Crawford, M., "Transmission of IPv6 Packets over Ethernet Networks", RFC 2464, December 1998. NEW [RFC2464] Crawford, M., "Transmission of IPv6 Packets over Ethernet Networks", RFC 2464, December 1998. [ULE1] Registration for format_identifier ULE1, SMPTE Registration Authority, LLC, http://www.smpte-ra.org/ule1.html. _______________________________________________ IETF-Announce@ietf.org https://www1.ietf.org/mailman/listinfo/ietf-announce
