16ng BoF - IETF 64, Vancouver BoF name: IPv6 over IEEE 802.16(e) Networks (16ng) BoF area: INT ============================================ Last Modified: 2005-10-24 CHAIRS: Soohong Daniel Park Gabriel Montenegro DESCRIPTION: Broadband Wireless Access networks address the inadequacies of low bandwidth wireless communication for user requirements such as high quality data/voice service, fast mobility, wide coverage, etc. The IEEE 802.16 Working Group on Broadband Wireless Access Standards develops standards and recommended practices to support the development and deployment of broadband Wireless Metropolitan Area Networks. Additionally, IEEE 802.16e is an amendment that adds support for mobility over the base IEEE 802.16 specification. Recently, the WiMAX Forum, and, in particular, its NWG (Network Working Group) is defining the IEEE 802.16(e) network architecture (e.g., IPv4, IPv6, Mobility, Interworking with different networks, AAA, etc). The NWG is thus taking on work at layers above those defined by the IEEE 802 standards (typically limited to the physical and link layers only). Similarly, WiBro (Wireless Broadband), a Korean effort which focuses on the 2.3 GHz spectrum band, is also based on the IEEE 802.16e specification. IEEE 802.16(e) is different from existing wireless access technologies such as IEEE 802.11 or 3G. Accordingly, while 802.16 defines the encapsulation of an IP datagram in an IEEE 802.16 MAC payload, complete description of IP operation is not present and can benefit from IETF input and specification. For example: immediately subsequent to network entry an 802.16 subscriber station has no capability whatsoever for data (as opposed to management) connectivity. The criteria by which the Base Station (or other headend elements) set up the 802.16 MAC connections for data transport is not part of the 802.16 standard and depends on the type of data services being offered (ie. the set up of transport connections will be different for IPv4 and IPv6 services). Additionally - as 802.16 is a point-to-multipoint network - an 802.16 subscriber station is not capable of multicasting (e.g., for neighbor discovery) or direct communication to the other nodes in the network. While the built-in LAN emulation feature of 802.16 ("802.3 Convergence Sublayer") rectifies this, it may involve additional packet overhead. As for fast mobility, the characteristics of IEEE 802.16e link-layer operation may require special considerations when implementing Fast Mobile IPv6 (RFC 4068), something which may be pursued in the MIPSHOP WG. The principal objective of the 16ng BoF is to identify what limitations and considerations apply to IPv6 adoption over IEEE 802.16(e), and to propose available solutions. The working group may issue recommendations to IEEE 802.16(e) suggesting protocol modifications for better IP support. The WiMAX Forum is slated to specify IPv6 operation over IEEE 802.16(e) in 2006. On the other hand, WiBro is already planning IPv4 deployment in 2006 (IPv6 over WiBro will begin within a year). Accordingly, the working group will work and coordinate with the WiMAX Forum and with the WiBro efforts. As for IPv4 operation, its specification is quite advanced already. Assuming enough interest is found, an additional work item would be an informational document on IPv4 operation over 802.16(e). However, initial focus will be on IPv6 at this stage. MAILING LIST: General Discussion: 16ng@eeca16.sogang.ac.kr To Subscribe: http://eeca16.sogang.ac.kr/mailman/listinfo/16ng Archive: http://eeca16.sogang.ac.kr/pipermail/16ng REFERENCES: Transport of IP over 802.16 http://www.ietf.org/internet-drafts/draft-mandin-ip-over-80216-ethcs-00.txt 16ng Problem Statement http://www.ietf.org/internet-drafts/draft-jee-16ng-problem-statement-02.txt Mobile IPv6 Fast Handovers over IEEE 802.16(e) Networks http://www.ietf.org/internet-drafts/draft-jang-mipshop-fh80216e-00.txt Considerations of IPv6 in IEEE 802.16 Network http://www.ietf.org/internet-drafts/draft-shin-ipv6-ieee802.16-01.txt Mobile IPv4 Fast Handovers for 802.16e networks http://www.ietf.org/internet-drafts/draft-jee-mip4-fh80216e-01.txt IEEE Std 802.16-2004 http://standards.ieee.org/getieee802/download/802.16-2004.pdf AGENDA: Total time: 2 hours Agenda bashing, chairs (5 mins) Reference: presentation material Presentor: chairs An Introduction to IEEE 802.16(e), (15 minutes) Reference: presentation material (no I-D) Presentor: Hannes Tschofenig WiMAX Forum Network Working Group Overview, (15 minutes) Reference: presentation material (no I-D) Presentor: Parviz Yegani IEEE 802.16 and NETLMM Overview, (5 minutes) Reference: presentation material (no I-D) Presentor: James Kempf IPv6 Deployment over IEEE 802.16, (5 minutes) Reference: presentation material (no I-D) Presentor: Yu-Seon Kim Transport of IP over IEEE 802.16, (10 minutes) Reference: draft-mandin-ip-over-80216-ethcs-00.txt Presentor: Jeff Mandin Scenarios and Considerations of IPv6 in IEEE 802.16 Networks, (10 minutes) Reference: draft-shin-ipv6-ieee802.16-01.txt Presentor: Myung-Ki Shin IPv6 NDP Implications in IEEE 802.16, (10 minutes) Reference: presentation material (no I-D) Presentor: Syam Madanapalli Fast Mobile IP Handovers over IEEE 802.16e Networks, (10 minutes) Reference: draft-jang-mipshop-fh80216e-00.txt, draft-jee-mip4-fh80216e-01.txt Presentor: Rajeev Koodli 16ng Problem Statements, (5 minutes) Reference: draft-jee-16ng-problem-statement-02.txt Presentor: Junghoon Jee Overview of proposed charter, (5 minutes) Reference: proposed charter Presentor: chairs Charter discussion, (25 minutes) Reference: presentation material Presentor: chairs