Evaluation of Candidate Control and Provisioning of Wireless Access Points (CAPWAP) Protocols
RFC 4565

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• IESG evaluation record
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Network Working Group                                           D. Loher
Request for Comments: 4565                                Envysion, Inc.
Category: Informational                                        D. Nelson
                                                Enterasys Networks, Inc.
                                                             O. Volinsky
                                                 Colubris Networks, Inc.
                                                             B. Sarikaya
                                                              Huawei USA
                                                               July 2006

           Evaluation of Candidate Control and Provisioning
              of Wireless Access Points (CAPWAP) Protocols

Status of This Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2006).

Abstract

   This document is a record of the process and findings of the Control
   and Provisioning of Wireless Access Points Working Group (CAPWAP WG)
   evaluation team.  The evaluation team reviewed the 4 candidate
   protocols as they were submitted to the working group on June 26,
   2005.

Table of Contents

   1. Introduction ....................................................3
      1.1. Conventions Used in This Document ..........................3
      1.2. Terminology ................................................3
   2. Process Description .............................................3
      2.1. Ratings ....................................................3
   3. Member Statements ...............................................4
   4. Protocol Proposals and Highlights ...............................5
      4.1. LWAPP ......................................................5
      4.2. SLAPP ......................................................6
      4.3. CTP ........................................................6
      4.4. WiCoP ......................................................7

Loher, et al.                Informational                      [Page 1]
RFC 4565        Evaluation of Candidate CAPWAP Protocols       July 2006

   5. Security Considerations .........................................7
   6. Mandatory Objective Compliance Evaluation .......................8
      6.1. Logical Groups .............................................8
      6.2. Traffic Separation .........................................8
      6.3. STA Transparency ...........................................9
      6.4. Configuration Consistency .................................10
      6.5. Firmware Trigger ..........................................11
      6.6. Monitor and Exchange of System-wide Resource State ........12
      6.7. Resource Control ..........................................13
      6.8. Protocol Security .........................................15
      6.9. System-Wide Security ......................................16
      6.10. 802.11i Considerations ...................................17
      6.11. Interoperability .........................................17
      6.12. Protocol Specifications ..................................18
      6.13. Vendor Independence ......................................19
      6.14. Vendor Flexibility .......................................19
      6.15. NAT Traversal ............................................20
   7. Desirable Objective Compliance Evaluation ......................20
      7.1. Multiple Authentication ...................................20
      7.2. Future Wireless Technologies ..............................21
      7.3. New IEEE Requirements .....................................21
      7.4. Interconnection (IPv6) ....................................22
      7.5. Access Control ............................................23
   8. Evaluation Summary and Conclusions .............................24
   9. Protocol Recommendation ........................................24
      9.1. High-Priority Recommendations Relevant to
           Mandatory Objectives ......................................25
           9.1.1. Information Elements ...............................25
           9.1.2. Control Channel Security ...........................25
           9.1.3. Data Tunneling Modes ...............................26
      9.2. Additional Recommendations Relevant to Desirable
           Objectives ................................................27
           9.2.1. Access Control .....................................27
           9.2.2. Removal of Layer 2 Encapsulation for Data
                  Tunneling ..........................................28
           9.2.3. Data Encapsulation Standard ........................28
   10. Normative References ..........................................29
   11. Informative References ........................................29