1. 802.11u Bootstrap Procedure with 802.21
Month Year
doc.: IEEE /0267r0
February 2007
802.11u Bootstrap Procedure with
Date:
Authors:
Notice: This document has been prepared to assist IEEE It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.
Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE
Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures < ieee802.org/guides/bylaws/sb-bylaws.pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard." Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE Working Group. If you have questions, contact the IEEE Patent Committee Administrator at
Matthew Gast, Trapeze Networks
Matthew Gast, Trapeze Networks

2. Month Year
doc.: IEEE /0267r0
February 2007
Abstract
Frame exchange diagram for initial bootstrap process of an u-capable STA using Diagram developed at February 2007 TGu/ Ad Hoc Meeting (San Jose, CA)
Matthew Gast, Trapeze Networks
Matthew Gast, Trapeze Networks

3. Use Case #1: Query SSPN List
Month Year
doc.: IEEE /0267r0
February 2007
Use Case #1: Query SSPN List
STA
(11u-capable) AP
(11u-capable) IS
(local AN) IS
(“home” SSPN)
Pre-configuration
Advertising protocol ID (APID) = IS
Maximum acceptable length (LEN) for query responses
Pre-configuration
Beacon (Interworking IE, GAS:APID)
Probe Request
Probe Response (Interworking IE,
GAS:APID)
Relay MIH frame (with query content)
Note 1: Further investigation required
Note 2: Query ID required
Transport method: (1) 802.3, (2) IP
GAS initial request (request IE, APID)
Query content (“list of SSPNs?”)
GAS Initial Response (Query ID, Dialog
Token, comeback delay)
COLOR KEY
Needs work
(optional – STA to PS mode)
Comeback delay
MIH Response (transaction ID,
answer information); may be delayed
until answer is ready
Out of scope
802.11
GAS Comeback Request (Query ID)
802.21
GAS Comeback Response (Query ID,
answer information)
Matthew Gast, Trapeze Networks
Matthew Gast, Trapeze Networks

4. Questions and notes What is the AP-to-IS communication?
Month Year
doc.: IEEE /0267r0
February 2007
Questions and notes
What is the AP-to-IS communication?
What is the protocol used? Is it direct L2 connection, MIPSHOP, RADIUS/DIAMETER, or something else entirely?
Potential resolution: needs to create an IP-based transport protocol.
Is a query ID necessary to match STA query to IS responses?
Potential resolution: AP assures that Transaction ID is unique on a per-STA basis for a reasonable time interval, and rewrites Transaction ID if necessary for uniqueness
This works as a long as transactions are not integrity protected. There is no security in state 1, so this may not be a big drawback. Does the STA need to refrain from using integrity protection in state 1?
How much interpretation does AP do of MIH requests?
If none, then will any claimed frame from STA be relayed to IS?
How much of the MIH packet does the AP need to understand? Query and response should be opaque. How much of the header is necessary?
Matthew Gast, Trapeze Networks
Matthew Gast, Trapeze Networks

5. Additional Notes How does an AP discovery the IS?
Month Year
doc.: IEEE /0267r0
February 2007
Additional Notes
How does an AP discovery the IS?
Is this just an administrative configuration? Or is there a discovery protocol?
For clarity, the u amendment must contain an informative annex for how to interact with MIH operations
Matthew Gast, Trapeze Networks
Matthew Gast, Trapeze Networks