The IESG has approved the following document: - 'Transmission of IPv6 packets over ITU-T G.9959 Networks' (draft-ietf-6lo-lowpanz-08.txt) as Proposed Standard This document is the product of the IPv6 over Networks of Resource-constrained Nodes Working Group. The IESG contact persons are Brian Haberman and Ted Lemon. A URL of this Internet Draft is: http://datatracker.ietf.org/doc/draft-ietf-6lo-lowpanz/ Technical Summary: The ITU-T G.9959 recommendation targets low-power Personal Area Networks. This document defines the frame format for transmission of IPv6 [RFC2460] packets as well as the formation of IPv6 link-local addresses and statelessly autoconfigured IPv6 addresses on G.9959 networks. The general approach of this document is to adapt 6lowpan base documents (RFC 4944, RFC 6282 and RFC 6775) with minor modifications for running efficiently in G.9959 networks. The document also discusses mapping of G.9959 parameters (ex: HomeID) into IPv6 address formation. Working Group Summary: The work on draft-ietf-6lo-lowpanz started sometime ago in 6lowpan WG and now the work is transferred to 6lo WG. It has been reviewed by several members of the WG. During WGLC an improvement request came in to update the solution for non-MAC derived IPv6 address support. In addition there were comments by Carsten Bormann on multiple cases of SHOULD and MUST in the document. The changes were substantial. The document addressed privacy comments by providing options for using frequently changing managed addressing (example DHCPv6) at the cost of efficiency and cost of operations. However the link-layer address MUST be derived from the IID in order to provide efficient header compression described in RFC6282. In the constrained environment, the compression and ability for quick identification might be more practical and desirable than privacy as usually these networks come with gateway devices. However, because of the substantial changes in the document after the first WGLC, the 6lo-chairs decided to have a second LC. During second LC, there were comments on clarification and editorial changes. After the LC, there were several comments from the co-chair/shepherd and the document authors also addressed them mostly and finally published version 05. The WGLC comments are listed in the issue tracker. Document Quality: There is currently a single implementation available by Sigma design which has products in Z-wave technology area. We do not know about other Z-wave implementations of this draft. However, once it becomes RFC, it will be referenced in the Z-Wave Alliance documents and it will then be expected to be implemented by other Z-Wave vendors in due course. Note that Z-wave vendors are not typical IETF participants. Carsten Bormann's name can be mentioned as one of the thorough reviewers who suggested non-trivial changes. Personnel: Document shepherd: Samita Chakrabarti Responsible Area Director: Brian Haberman
