Transmission of IPv4 Packets over the IP Convergence Sublayer of IEEE 802.16
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From: The IESG <firstname.lastname@example.org> To: IETF-Announce <email@example.com> Cc: Internet Architecture Board <firstname.lastname@example.org>, RFC Editor <email@example.com>, 16ng mailing list <firstname.lastname@example.org>, 16ng chair <email@example.com> Subject: Protocol Action: 'Transmission of IPv4 packets over IEEE 802.16's IP Convergence Sublayer' to Proposed Standard The IESG has approved the following document: - 'Transmission of IPv4 packets over IEEE 802.16's IP Convergence Sublayer ' <draft-ietf-16ng-ipv4-over-802-dot-16-ipcs-07.txt> as a Proposed Standard This document is the product of the IP over IEEE 802.16 Networks Working Group. The IESG contact persons are Ralph Droms and Jari Arkko. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-16ng-ipv4-over-802-dot-16-ipcs-07.txt
Technical Summary IEEE 802.16 is an air interface specification for wireless broadband access. IEEE 802.16 has specified multiple service specific Convergence Sublayers for transmitting upper layer protocols. The packet CS (Packet Convergence Sublayer) is used for the transport of all packet-based protocols such as Internet Protocol (IP) and IEEE 802.3 (Ethernet). The IP-specific part of the Packet CS enables the transport of IPv4 packets directly over the IEEE 802.16 MAC. This document specifies the frame format, the Maximum Transmission Unit (MTU) and address assignment procedures for transmitting IPv4 packets over the IP-specific part of the Packet Convergence Sublayer of IEEE 802.16. Working Group Summary The document underwent much heated discussion, particularly on the proper choice of MTU. The document captures consensus within the IETF and includes some information about the source of such opposing views: WiMAX Forum's use of an MTU of 1400 as opposed to 1500 in this document. Such discrepancy is not new, as it is also found in the case of the so-called IPv6 CS (RFC5121). However, in the IPv6 case, the RA MTU option provides an easy solution, whereas no such reliable method exists for IPv4. Other topics received much input and guidance from 802.16 and WiMAX participants. Document Quality This document was produced with the appropriate expertise, as it benefitted from the efforts within the IETF of many participants in IEEE 802.16 and the WiMAX Forum, including formal reviews from relevant experts in those bodies. Personnel Gabriel Montenegro (firstname.lastname@example.org) is the document shepherd. Ralph Droms (email@example.com) is the responsible AD.