Review of agenda - discussion on whether WiMAX is applicable to the CAPWAP protocol draft. - WiMAX is a working group issue, not a protocol draft issue. Review of milestones Discussion on the CAPWAP Protocol Specification - the LWAPP protocol has been used as a basis for CAPWAP-00, as recommended by the Evaluation Committee - the working group encourages publication of the other candidate protocols as informational RFC's. That will give the working group a record of the protocols that were considered for standardization. - there was a request for an interim meeting: an interim meeting would require a 30 day announcement - there would need to be an updated CAOWAP draft for the interim meeting as well as an official agenda - the agenda would need to contain concrete work items. - CAPWAP needs to get more input for the MIB document. That could be done at the interim meeting. - there is a feeling that CAPWAP protocol development is progressing slowly and an interim meeting could speed up the process. IEEE 802.11 Liason presentation - Is IEEE 802.11p going to be considered by the CAPWAP working group? - IEEE 802.11p has not been considered. It deals mostly with adhoc communications Editor's presentation - Pat presents update on tracker: - 85 issues submitted, 41 closed, 19 targetted for rev -01 and ~25 remaining for rev -02 - mentions a lot more issues to come since not many have read the draft yet - Dorothy presents change summary - inclusion of DTLS was made since in November '05 meeting there was large support for this - other editorial changes made - Pat discusses other major changes - Dorothy presents other changes editors are looking to resolve. - DTLS related issues, author section updates, Waitjoin timer default values, cipher, keying and other open issues - polls whether the message elements should be scattered or unified in one section: two individuals spoke in favor for placing the elements in one section. - Mike presents his updates to consider - 802.11 configuration statistics and consistancy issues - 802.11i and RADIUS considerations - other minor edits Pat presents his updates to consider - Issue 37 needs more discussion - Will address issues 53, 59, 63 and 69 - open issues that need more discussion in reflector: 43, 66, 75, 40, 72, 74 - Discussions show that a couple of individuals were looking at starting prototype by July CAPWAP Protocols concerns by Richard Gwee - the Join phase was removed when the DTLS was added. If you add the Join phase back, you address the state machine problems. - the number of WTP's that the AC can support is a discrete value. However traffic loading and other metrics vary over time. - The "periodic" firmware update means that the WTP would periodically check for a firmware update. Presentation on CAPWAPHP on Behcet Sarikaya - Inter-domain roaming handles roaming between the AC's. This could involve either a protocol definition between AC's, or a new protocol between WTP and the AC. - IEEE 802.11F had been deprecated because there were no implementations of the protocol. - CAPWAP already provides roaming solutions. This proposal introduces a new architecture that is not included in the taxonomy document. The architecture depicts the entire IEEE 802.11i implemented in the WTP as local MAC. - This protocol adds additional feature to the split MAC implementation. - As an alternative, you could simply forward the frame from the WTP to the AC. - This document addresses problems with client roaming. - Is it within the scope of CAPWAP to define roaming between WTP's across AC's. - The interpretation of the CAPWAP charter is that it only deals with the protocol between WTP and the AC. - If that is true, there is a single point of failure. - Roaming between AC's is more the scope other IETF groups. - multiple AC's could share the same AAA server. - Roaming between AC's is clearly out of scope of this working group. - If the controller fails, the WTP will connect to another controller. AC's could be part of a mobility group. - If an AC fails, WTP's will connect to other available AC's and the STA's will re-authenticate. - IEEE 802.11i introduces key caching so that a STA can establish a PMK and re-use it when it re-connects. - IEEE 802.11r provides a mechanism to minimize latency between WTP's across the same controller. Presentation on CAPWAP Security by Scott Kelly - Recommend that a design team be created to address the issues with adding DTLS support to CAPWAP. Presentation on Saag for CAPWAP by Scott Kelly - This presentation will be need to be explained to Sam - CAPWAP represents the AC/WTP architecture as a AP works today. - All Access Control is done at the AC. The WTP is more like a forwarding engine. - There needs to be formal Liason with the security area. - We don't really need a formail liason, but we need a security advisor. - This can be simplified by renaming "formal liason" to "designated point of contact". - If we choose to go with DTLS, there may be other issues that come up that could be addressed quickly with a security advisor. - Presentation of the CAPWAP MIB documents. - We should be able to be able to create a single MIB document. - From a CAPWAP perspective, the STA state is completely independent of the CAPWAP state. - What does it mean to CAPWAP if a STA has gone away. - The STA stop is a trap that occurs when a STA disassociates. - IEEE 802.11v is working to define an AP MIB. This MIB looks to be re-creating an AP MIB. - One of the goals with this work is not to re-cast work already being done by other standards bodies. - The IEEE 802.11 MIB assumes a single entity. - This MIB work should be specific to CAPWAP.