draft-ietf-capwap-protocol-binding-ieee80211-08.txt   draft-ietf-capwap-protocol-binding-ieee80211-09.txt 
Network Working Group P. Calhoun, Editor Network Working Group P. Calhoun, Editor
Internet-Draft Cisco Systems, Inc. Internet-Draft Cisco Systems, Inc.
Intended status: Standards Track M. Montemurro, Editor Intended status: Standards Track M. Montemurro, Editor
Expires: March 13, 2009 Research In Motion Expires: March 23, 2009 Research In Motion
D. Stanley, Editor D. Stanley, Editor
Aruba Networks Aruba Networks
September 9, 2008 September 19, 2008
CAPWAP Protocol Binding for IEEE 802.11 CAPWAP Protocol Binding for IEEE 802.11
draft-ietf-capwap-protocol-binding-ieee80211-08 draft-ietf-capwap-protocol-binding-ieee80211-09
Status of this Memo Status of this Memo
By submitting this Internet-Draft, each author represents that any By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes have been or will be disclosed, and any of which he or she becomes
aware will be disclosed, in accordance with Section 6 of BCP 79. aware will be disclosed, in accordance with Section 6 of BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that Task Force (IETF), its areas, and its working groups. Note that
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt. http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html. http://www.ietf.org/shadow.html.
This Internet-Draft will expire on March 13, 2009. This Internet-Draft will expire on March 23, 2009.
Abstract Abstract
Wireless LAN product architectures have evolved from single Wireless LAN product architectures have evolved from single
autonomous access points to systems consisting of a centralized autonomous access points to systems consisting of a centralized
Access Controller (AC) and Wireless Termination Points (WTPs). The Access Controller (AC) and Wireless Termination Points (WTPs). The
general goal of centralized control architectures is to move access general goal of centralized control architectures is to move access
control, including user authentication and authorization, mobility control, including user authentication and authorization, mobility
management and radio management from the single access point to a management and radio management from the single access point to a
centralized controller. centralized controller.
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Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1. Goals . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1. Goals . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2. Conventions used in this document . . . . . . . . . . . . 6 1.2. Conventions used in this document . . . . . . . . . . . . 6
1.3. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6 1.3. Terminology . . . . . . . . . . . . . . . . . . . . . . . 6
2. IEEE 802.11 Binding . . . . . . . . . . . . . . . . . . . . . 8 2. IEEE 802.11 Binding . . . . . . . . . . . . . . . . . . . . . 8
2.1. CAPWAP Wireless Binding Identifier . . . . . . . . . . . 8 2.1. CAPWAP Wireless Binding Identifier . . . . . . . . . . . 8
2.2. Split MAC and Local MAC Functionality . . . . . . . . . . 8 2.2. Split MAC and Local MAC Functionality . . . . . . . . . . 8
2.2.1. Split MAC . . . . . . . . . . . . . . . . . . . . . . 8 2.2.1. Split MAC . . . . . . . . . . . . . . . . . . . . . . 8
2.2.2. Local MAC . . . . . . . . . . . . . . . . . . . . . . 12 2.2.2. Local MAC . . . . . . . . . . . . . . . . . . . . . . 13
2.3. Roaming Behavior . . . . . . . . . . . . . . . . . . . . 15 2.3. Roaming Behavior . . . . . . . . . . . . . . . . . . . . 15
2.4. Group Key Refresh . . . . . . . . . . . . . . . . . . . . 16 2.4. Group Key Refresh . . . . . . . . . . . . . . . . . . . . 16
2.5. BSSID to WLAN ID Mapping . . . . . . . . . . . . . . . . 17 2.5. BSSID to WLAN ID Mapping . . . . . . . . . . . . . . . . 17
2.6. CAPWAP Data Channel QoS Behavior . . . . . . . . . . . . 17 2.6. CAPWAP Data Channel QoS Behavior . . . . . . . . . . . . 17
2.6.1. IEEE 802.11 Data Frames . . . . . . . . . . . . . . . 17 2.6.1. IEEE 802.11 Data Frames . . . . . . . . . . . . . . . 17
2.6.2. IEEE 802.11 MAC Management Messages . . . . . . . . . 20 2.6.2. IEEE 802.11 MAC Management Messages . . . . . . . . . 20
2.7. Run State Operation . . . . . . . . . . . . . . . . . . . 21 2.7. Run State Operation . . . . . . . . . . . . . . . . . . . 21
3. IEEE 802.11 Specific CAPWAP Control Messages . . . . . . . . . 22 3. IEEE 802.11 Specific CAPWAP Control Messages . . . . . . . . . 22
3.1. IEEE 802.11 WLAN Configuration Request . . . . . . . . . 22 3.1. IEEE 802.11 WLAN Configuration Request . . . . . . . . . 22
3.2. IEEE 802.11 WLAN Configuration Response . . . . . . . . . 23 3.2. IEEE 802.11 WLAN Configuration Response . . . . . . . . . 23
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6.12. IEEE 802.11 RSNA Error Report From Station . . . . . . . 45 6.12. IEEE 802.11 RSNA Error Report From Station . . . . . . . 45
6.13. IEEE 802.11 Station . . . . . . . . . . . . . . . . . . . 47 6.13. IEEE 802.11 Station . . . . . . . . . . . . . . . . . . . 47
6.14. IEEE 802.11 Station QoS Profile . . . . . . . . . . . . . 48 6.14. IEEE 802.11 Station QoS Profile . . . . . . . . . . . . . 48
6.15. IEEE 802.11 Station Session Key . . . . . . . . . . . . . 49 6.15. IEEE 802.11 Station Session Key . . . . . . . . . . . . . 49
6.16. IEEE 802.11 Statistics . . . . . . . . . . . . . . . . . 51 6.16. IEEE 802.11 Statistics . . . . . . . . . . . . . . . . . 51
6.17. IEEE 802.11 Supported Rates . . . . . . . . . . . . . . . 55 6.17. IEEE 802.11 Supported Rates . . . . . . . . . . . . . . . 55
6.18. IEEE 802.11 Tx Power . . . . . . . . . . . . . . . . . . 55 6.18. IEEE 802.11 Tx Power . . . . . . . . . . . . . . . . . . 55
6.19. IEEE 802.11 Tx Power Level . . . . . . . . . . . . . . . 56 6.19. IEEE 802.11 Tx Power Level . . . . . . . . . . . . . . . 56
6.20. IEEE 802.11 Update Station QoS . . . . . . . . . . . . . 56 6.20. IEEE 802.11 Update Station QoS . . . . . . . . . . . . . 56
6.21. IEEE 802.11 Update WLAN . . . . . . . . . . . . . . . . . 58 6.21. IEEE 802.11 Update WLAN . . . . . . . . . . . . . . . . . 58
6.22. IEEE 802.11 WTP Quality of Service . . . . . . . . . . . 60 6.22. IEEE 802.11 WTP Quality of Service . . . . . . . . . . . 61
6.23. IEEE 802.11 WTP Radio Configuration . . . . . . . . . . . 62 6.23. IEEE 802.11 WTP Radio Configuration . . . . . . . . . . . 64
6.24. IEEE 802.11 WTP Radio Fail Alarm Indication . . . . . . . 64 6.24. IEEE 802.11 WTP Radio Fail Alarm Indication . . . . . . . 66
6.25. IEEE 802.11 WTP Radio Information . . . . . . . . . . . . 65 6.25. IEEE 802.11 WTP Radio Information . . . . . . . . . . . . 66
7. IEEE 802.11 Binding WTP Saved Variables . . . . . . . . . . . 67 7. IEEE 802.11 Binding WTP Saved Variables . . . . . . . . . . . 68
7.1. IEEE80211AntennaInfo . . . . . . . . . . . . . . . . . . 67 7.1. IEEE80211AntennaInfo . . . . . . . . . . . . . . . . . . 68
7.2. IEEE80211DSControl . . . . . . . . . . . . . . . . . . . 67 7.2. IEEE80211DSControl . . . . . . . . . . . . . . . . . . . 68
7.3. IEEE80211MACOperation . . . . . . . . . . . . . . . . . . 67 7.3. IEEE80211MACOperation . . . . . . . . . . . . . . . . . . 68
7.4. IEEE80211OFDMControl . . . . . . . . . . . . . . . . . . 67 7.4. IEEE80211OFDMControl . . . . . . . . . . . . . . . . . . 68
7.5. IEEE80211Rateset . . . . . . . . . . . . . . . . . . . . 67 7.5. IEEE80211Rateset . . . . . . . . . . . . . . . . . . . . 68
7.6. IEEE80211TxPower . . . . . . . . . . . . . . . . . . . . 67 7.6. IEEE80211TxPower . . . . . . . . . . . . . . . . . . . . 68
7.7. IEEE80211QoS . . . . . . . . . . . . . . . . . . . . . . 67 7.7. IEEE80211QoS . . . . . . . . . . . . . . . . . . . . . . 68
7.8. IEEE80211RadioConfig . . . . . . . . . . . . . . . . . . 67 7.8. IEEE80211RadioConfig . . . . . . . . . . . . . . . . . . 68
8. Technology Specific Message Element Values . . . . . . . . . . 68 8. Technology Specific Message Element Values . . . . . . . . . . 69
8.1. WTP Descriptor Message Element, Encryption 8.1. WTP Descriptor Message Element, Encryption
Capabilities Field: . . . . . . . . . . . . . . . . . . . 68 Capabilities Field: . . . . . . . . . . . . . . . . . . . 69
9. Security Considerations . . . . . . . . . . . . . . . . . . . 69 9. Security Considerations . . . . . . . . . . . . . . . . . . . 70
9.1. IEEE 802.11 Security . . . . . . . . . . . . . . . . . . 69 9.1. IEEE 802.11 Security . . . . . . . . . . . . . . . . . . 70
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 71 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 72
10.1. CAPWAP Wireless Binding Identifier . . . . . . . . . . . 71 10.1. CAPWAP Wireless Binding Identifier . . . . . . . . . . . 72
10.2. CAPWAP IEEE 802.11 Message Types . . . . . . . . . . . . 71 10.2. CAPWAP IEEE 802.11 Message Types . . . . . . . . . . . . 72
10.3. CAPWAP Message Element Type . . . . . . . . . . . . . . . 71 10.3. CAPWAP Message Element Type . . . . . . . . . . . . . . . 72
10.4. IEEE 802.11 Key Status . . . . . . . . . . . . . . . . . 71 10.4. IEEE 802.11 Key Status . . . . . . . . . . . . . . . . . 72
10.5. IEEE 802.11 QoS . . . . . . . . . . . . . . . . . . . . . 72 10.5. IEEE 802.11 QoS . . . . . . . . . . . . . . . . . . . . . 73
10.6. IEEE 802.11 Auth Type . . . . . . . . . . . . . . . . . . 72 10.6. IEEE 802.11 Auth Type . . . . . . . . . . . . . . . . . . 73
10.7. IEEE 802.11 Antenna Combiner . . . . . . . . . . . . . . 72 10.7. IEEE 802.11 Antenna Combiner . . . . . . . . . . . . . . 73
10.8. IEEE 802.11 Antenna Selection . . . . . . . . . . . . . . 72 10.8. IEEE 802.11 Antenna Selection . . . . . . . . . . . . . . 73
10.9. IEEE 802.11 Session Key Flags . . . . . . . . . . . . . . 73 10.9. IEEE 802.11 Session Key Flags . . . . . . . . . . . . . . 74
10.10. IEEE 802.11 Tagging Policy . . . . . . . . . . . . . . . 73 10.10. IEEE 802.11 Tagging Policy . . . . . . . . . . . . . . . 74
10.11. IEEE 802.11 WTP Radio Fail . . . . . . . . . . . . . . . 73 10.11. IEEE 802.11 WTP Radio Fail . . . . . . . . . . . . . . . 74
10.12. IEEE 802.11 WTP Radio Type . . . . . . . . . . . . . . . 73 10.12. IEEE 802.11 WTP Radio Type . . . . . . . . . . . . . . . 74
11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 75 11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 76
12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 76 12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 77
12.1. Normative References . . . . . . . . . . . . . . . . . . 76 12.1. Normative References . . . . . . . . . . . . . . . . . . 77
12.2. Informational References . . . . . . . . . . . . . . . . 77 12.2. Informational References . . . . . . . . . . . . . . . . 78
Editors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 78 Editors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 79
Intellectual Property and Copyright Statements . . . . . . . . . . 79 Intellectual Property and Copyright Statements . . . . . . . . . . 80
1. Introduction 1. Introduction
The CAPWAP protocol [I-D.ietf-capwap-protocol-specification] defines The CAPWAP protocol [I-D.ietf-capwap-protocol-specification] defines
an extensible protocol to allow an Access Controller to manage an extensible protocol to allow an Access Controller to manage
wireless agnostic Wireless Termination Points. The CAPWAP protocol wireless agnostic Wireless Termination Points. The CAPWAP protocol
itself does not include any specific wireless technologies, but itself does not include any specific wireless technologies, but
instead relies on binding specification to extend the technology to a instead relies on binding specification to extend the technology to a
particular wireless technology. particular wireless technology.
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use. If encryption/decryption is handled in the AC, the IEEE use. If encryption/decryption is handled in the AC, the IEEE
802.11 Information message element with an RSNIE would not be 802.11 Information message element with an RSNIE would not be
included. included.
o The WTP forwards any IEEE 802.11 Management Action frames received o The WTP forwards any IEEE 802.11 Management Action frames received
to the AC. to the AC.
o All IEEE 802.11 station data frames are tunneled between the WTP o All IEEE 802.11 station data frames are tunneled between the WTP
and the AC. and the AC.
Note that during the EAPOL-Key exchange between the Station and the
AC, the Receive Sequence Counter (RSC) field for the GTK needs to be
included in the frame. The value of zero (0) is used by the AC
during this exchange. Additional details are available in
Section 9.1.
The WTP SHALL include the IEEE 802.11 MAC header contents in all The WTP SHALL include the IEEE 802.11 MAC header contents in all
frames transmitted to the AC. frames transmitted to the AC.
When 802.11 encryption/decryption is performed at the WTP, the WTP When 802.11 encryption/decryption is performed at the WTP, the WTP
MUST decrypt the uplink frames, MUST set the Protected Frame field to MUST decrypt the uplink frames, MUST set the Protected Frame field to
0, and MUST make the frame format consistent with that of an 0, and MUST make the frame format consistent with that of an
unprotected 802.11 frame prior to transmitting the frames to the AC. unprotected 802.11 frame prior to transmitting the frames to the AC.
The fields added to an 802.11 protected frame (i.e., Initialization The fields added to an 802.11 protected frame (i.e., Initialization
Vector/Extended Initialization Vector (IV/EIV), Message Integrity Vector/Extended Initialization Vector (IV/EIV), Message Integrity
Code (MIC), and Integrity Check Value (ICV)) MUST be stripped off Code (MIC), and Integrity Check Value (ICV)) MUST be stripped off
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0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| WLAN ID bitmap | Reserved | | WLAN ID bitmap | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
WLAN ID bitmap: This bit field indicates the WLAN ID (see WLAN ID bitmap: This bit field indicates the WLAN ID (see
Section 6.1) on which the WTP will transmit the included frame. Section 6.1) on which the WTP will transmit the included frame.
For instance, if a multicast packet is to be transmitted on For instance, if a multicast packet is to be transmitted on
WLANs 1 and 3, bits 1 and 3 of this field would be enabled. WLANs 1 and 3, the bits for WLAN 1 and 3 of this field would be
This field is to be set to all zeroes for unicast packets and enabled. WLAN 1 is represented by bit 15 in the figure above,
is unused if the WTP is not providing IEEE 802.11 encryption. or the least significant bit, while WLAN 16 would be
represented by bit zero (0), or the most significant bit, in
the figure. This field is to be set to all zeroes for unicast
packets and is unused if the WTP is not providing IEEE 802.11
encryption.
Reserved: All implementations complying with this protocol MUST Reserved: All implementations complying with this protocol MUST
set to zero any bits that are reserved in the version of the set to zero any bits that are reserved in the version of the
protocol supported by that implementation. Receivers MUST protocol supported by that implementation. Receivers MUST
ignore all bits not defined for the version of the protocol ignore all bits not defined for the version of the protocol
they support. they support.
5. CAPWAP Control Message bindings 5. CAPWAP Control Message bindings
This section describes the IEEE 802.11 specific message elements This section describes the IEEE 802.11 specific message elements
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The following IEEE 802.11 specific message elements MAY included in The following IEEE 802.11 specific message elements MAY included in
the CAPWAP Station Configuration Request message. More than one of the CAPWAP Station Configuration Request message. More than one of
each message element listed MAY be included. each message element listed MAY be included.
o IEEE 802.11 Station, see Section 6.13 o IEEE 802.11 Station, see Section 6.13
o IEEE 802.11 Station Session Key, see Section 6.15 o IEEE 802.11 Station Session Key, see Section 6.15
o IEEE 802.11 Station QoS Profile, see Section 6.14 o IEEE 802.11 Station QoS Profile, see Section 6.14
o IEEE 802.11 Update Station Qos, see Section 6.20
5.11. Change State Event Request 5.11. Change State Event Request
The following IEEE 802.11 specific message elements MAY included in The following IEEE 802.11 specific message elements MAY included in
the CAPWAP Station Configuration Request message. the CAPWAP Station Configuration Request message.
o IEEE 802.11 WTP Radio Fail Alarm Indication, see Section 6.24 o IEEE 802.11 WTP Radio Fail Alarm Indication, see Section 6.24
5.12. WTP Event Request 5.12. WTP Event Request
The following IEEE 802.11 specific message elements MAY be included The following IEEE 802.11 specific message elements MAY be included
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| Key... | | Key... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Group TSC | | Group TSC |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Group TSC | QoS | Auth Type | | Group TSC | QoS | Auth Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| MAC Mode | Tunnel Mode | Suppress SSID | SSID ... | MAC Mode | Tunnel Mode | Suppress SSID | SSID ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 1024 for IEEE 802.11 Add WLAN Type: 1024 for IEEE 802.11 Add WLAN
Length: >= 52 Length: >= 20
Radio ID: An 8-bit value representing the radio. Radio ID: An 8-bit value representing the radio.
WLAN ID: An 8-bit value specifying the WLAN Identifier. The value WLAN ID: An 8-bit value specifying the WLAN Identifier. The value
MUST be between one (1) and 15. MUST be between one (1) and 16.
Capability: A 16-bit value containing the capability information Capability: A 16-bit value containing the capability information
field to be advertised by the WTP in the Probe Request and Beacon field to be advertised by the WTP in the Probe Request and Beacon
frames. Each bit of the Capability field represents a different frames. Each bit of the Capability field represents a different
WTP capability, which are described in detail in WTP capability, which are described in detail in
[IEEE.802-11.2007]. The format of the field is: [IEEE.802-11.2007]. The format of the field is:
0 1 0 1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| BSSID | | BSSID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 1026 for IEEE 802.11 Assigned WTP BSSID Type: 1026 for IEEE 802.11 Assigned WTP BSSID
Length: 8 Length: 8
Radio ID: An 8-bit value representing the radio. Radio ID: An 8-bit value representing the radio.
WLAN ID: An 8-bit value specifying the WLAN Identifier. The value WLAN ID: An 8-bit value specifying the WLAN Identifier. The value
MUST be between one (1) and 15. MUST be between one (1) and 16.
BSSID: The BSSID assigned by the WTP for the WLAN created as a BSSID: The BSSID assigned by the WTP for the WLAN created as a
result of receiving an IEEE 802.11 Add WLAN. result of receiving an IEEE 802.11 Add WLAN.
6.4. IEEE 802.11 Delete WLAN 6.4. IEEE 802.11 Delete WLAN
The IEEE 802.11 Delete WLAN message element is used to inform the WTP The IEEE 802.11 Delete WLAN message element is used to inform the WTP
that a previously created WLAN is to be deleted, and contains the that a previously created WLAN is to be deleted, and contains the
following fields: following fields:
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| Radio ID | WLAN ID | | Radio ID | WLAN ID |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 1027 for IEEE 802.11 Delete WLAN Type: 1027 for IEEE 802.11 Delete WLAN
Length: 2 Length: 2
Radio ID: An 8-bit value representing the radio Radio ID: An 8-bit value representing the radio
WLAN ID: An 8-bit value specifying the WLAN Identifier. The value WLAN ID: An 8-bit value specifying the WLAN Identifier. The value
MUST be between one (1) and 15. MUST be between one (1) and 16.
6.5. IEEE 802.11 Direct Sequence Control 6.5. IEEE 802.11 Direct Sequence Control
The IEEE 802.11 Direct Sequence Control message element is a bi- The IEEE 802.11 Direct Sequence Control message element is a bi-
directional element. When sent by the WTP, it contains the current directional element. When sent by the WTP, it contains the current
state. When sent by the AC, the WTP MUST adhere to the values state. When sent by the AC, the WTP MUST adhere to the values
provided. This element is only used for IEEE 802.11b radios. The provided. This element is only used for IEEE 802.11b radios. The
message element has the following fields. message element has the following fields.
0 1 2 3 0 1 2 3
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Radio ID | WLAN ID |B|P| Reserved |Info Element... | Radio ID | WLAN ID |B|P| Reserved |Info Element...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 1029 for IEEE 802.11 Information Element Type: 1029 for IEEE 802.11 Information Element
Length: >= 4 Length: >= 4
Radio ID: An 8-bit value representing the radio. Radio ID: An 8-bit value representing the radio.
WLAN ID: An 8-bit value specifying the WLAN Identifier. The value WLAN ID: An 8-bit value specifying the WLAN Identifier. The value
MUST be between one (1) and 15. MUST be between one (1) and 16.
B: When set, the WTP is to include the information element in IEEE B: When set, the WTP is to include the information element in IEEE
802.11 Beacons associated with the WLAN. 802.11 Beacons associated with the WLAN.
P: When set, the WTP is to include the information element in Probe P: When set, the WTP is to include the information element in Probe
Responses associated with the WLAN. Responses associated with the WLAN.
Reserved: All implementations complying with this protocol MUST set Reserved: All implementations complying with this protocol MUST set
to zero any bits that are reserved in the version of the protocol to zero any bits that are reserved in the version of the protocol
supported by that implementation. Receivers MUST ignore all bits supported by that implementation. Receivers MUST ignore all bits
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Type: 1031 for IEEE 802.11 MIC Countermeasures Type: 1031 for IEEE 802.11 MIC Countermeasures
Length: 8 Length: 8
Radio ID: The Radio Identifier, typically refers to some interface Radio ID: The Radio Identifier, typically refers to some interface
index on the WTP. index on the WTP.
WLAN ID: This 8-bit unsigned integer includes the WLAN Identifier, WLAN ID: This 8-bit unsigned integer includes the WLAN Identifier,
on which the MIC failure occurred. The value MUST be between one on which the MIC failure occurred. The value MUST be between one
(1) and 15. (1) and 16.
MAC Address: The MAC Address of the station that caused the MIC MAC Address: The MAC Address of the station that caused the MIC
failure. failure.
6.9. IEEE 802.11 Multi-Domain Capability 6.9. IEEE 802.11 Multi-Domain Capability
The IEEE 802.11 Multi-Domain Capability message element is used by The IEEE 802.11 Multi-Domain Capability message element is used by
the AC to inform the WTP of regulatory limits. The AC will transmit the AC to inform the WTP of regulatory limits. The AC will transmit
one message element per frequency band to indicate the regulatory one message element per frequency band to indicate the regulatory
constraints in that domain. The message element contains the constraints in that domain. The message element contains the
skipping to change at page 46, line 41 skipping to change at page 46, line 41
Length: 40 Length: 40
Client MAC Address: The Client MAC Address of the station. Client MAC Address: The Client MAC Address of the station.
BSSID: The BSSID on which the failures are being reported on. BSSID: The BSSID on which the failures are being reported on.
Radio ID: The Radio Identifier, typically refers to some interface Radio ID: The Radio Identifier, typically refers to some interface
index on the WTP index on the WTP
WLAN ID: The WLAN ID on which the RSNA failures are being reported. WLAN ID: The WLAN ID on which the RSNA failures are being reported.
The value MUST be between one (1) and 15. The value MUST be between one (1) and 16.
Reserved: All implementations complying with this protocol MUST set Reserved: All implementations complying with this protocol MUST set
to zero any bits that are reserved in the version of the protocol to zero any bits that are reserved in the version of the protocol
supported by that implementation. Receivers MUST ignore all bits supported by that implementation. Receivers MUST ignore all bits
not defined for the version of the protocol they support. not defined for the version of the protocol they support.
TKIP ICV Errors: A 32-bit value representing the number of Temporal TKIP ICV Errors: A 32-bit value representing the number of Temporal
Key Integrity Protocol (TKIP) (as defined in [IEEE.802-11.2007]) Key Integrity Protocol (TKIP) (as defined in [IEEE.802-11.2007])
ICV errors encountered when decrypting packets from the station. ICV errors encountered when decrypting packets from the station.
The value of this field comes from the IEEE 802.11 The value of this field comes from the IEEE 802.11
skipping to change at page 48, line 37 skipping to change at page 48, line 37
zero any bits that are reserved in the version of the protocol zero any bits that are reserved in the version of the protocol
supported by that implementation. Receivers MUST ignore all bits supported by that implementation. Receivers MUST ignore all bits
not defined for the version of the protocol they support. not defined for the version of the protocol they support.
MAC Address: The station's MAC Address MAC Address: The station's MAC Address
Capabilities: A 16-bit field containing the IEEE 802.11 Capabilities: A 16-bit field containing the IEEE 802.11
Capabilities Information Field to use with the station. Capabilities Information Field to use with the station.
WLAN ID: An 8-bit value specifying the WLAN Identifier. The value WLAN ID: An 8-bit value specifying the WLAN Identifier. The value
MUST be between one (1) and 15. MUST be between one (1) and 16.
Supported Rates: The variable length field containing the supported Supported Rates: The variable length field containing the supported
rates to be used with the station, as found in the IEEE 802.11 rates to be used with the station, as found in the IEEE 802.11
dot11OperationalRateSet MIB element (see [IEEE.802-11.2007]). dot11OperationalRateSet MIB element (see [IEEE.802-11.2007]).
This field MUST NOT exceed 126 octets and specifies the set of This field MUST NOT exceed 126 octets and specifies the set of
data rates at which the station may transmit data, where each data rates at which the station may transmit data, where each
octet represents a data rate. octet represents a data rate.
6.14. IEEE 802.11 Station QoS Profile 6.14. IEEE 802.11 Station QoS Profile
skipping to change at page 57, line 6 skipping to change at page 57, line 6
[IEEE.802-11.2007]. [IEEE.802-11.2007].
6.20. IEEE 802.11 Update Station QoS 6.20. IEEE 802.11 Update Station QoS
The IEEE 802.11 Update Station QoS message element is used to change The IEEE 802.11 Update Station QoS message element is used to change
the Quality of Service policy on the WTP for a given station. The the Quality of Service policy on the WTP for a given station. The
QoS tags included in this message element are to be applied to QoS tags included in this message element are to be applied to
packets received at the WTP from the station indicated through the packets received at the WTP from the station indicated through the
MAC Address field. This message element overrides the default values MAC Address field. This message element overrides the default values
provided through the IEEE 802.11 WTP Quality of Service message provided through the IEEE 802.11 WTP Quality of Service message
element (see Section 6.22. Any tagging performed by the WTP MUST be element (see Section 6.22). Any tagging performed by the WTP MUST be
directly applied to the packets receive from the station, as well as directly applied to the packets receive from the station, as well as
the CAPWAP tunnel, if the packets are tunneled to the AC. See the CAPWAP tunnel, if the packets are tunneled to the AC. See
Section 2.6 for more information. Section 2.6 for more information.
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Radio ID | MAC Address | | Radio ID | MAC Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| MAC Address | QoS Sub-Element... | | MAC Address | QoS Sub-Element... |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Radio ID | WLAN ID | Capability | | Radio ID | WLAN ID | Capability |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Key Index | Key Status | Key Length | | Key Index | Key Status | Key Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Key... | | Key... |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 1044 for IEEE 802.11 Update WLAN Type: 1044 for IEEE 802.11 Update WLAN
Length: 40 Length: >= 8
Radio ID: An 8-bit value representing the radio. Radio ID: An 8-bit value representing the radio.
WLAN ID: An 8-bit value specifying the WLAN Identifier. The value WLAN ID: An 8-bit value specifying the WLAN Identifier. The value
MUST be between one (1) and 15. MUST be between one (1) and 16.
Capability: A 16-bit value containing the capabilities information Capability: A 16-bit value containing the capability information
field to be advertised by the WTP within the Probe and Beacon field to be advertised by the WTP in the Probe Request and Beacon
messages. frames. Each bit of the Capability field represents a different
WTP capability, which are described in detail in
[IEEE.802-11.2007]. The format of the field is:
0 1
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|E|I|C|F|P|S|B|A|M|Q|T|D|V|O|K|L|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
E (ESS): The AC MUST set the Extended Service Set (ESS) subfield
to 1.
I (IBSS): The AC MUST set the Independent Basic Service Set
(IBSS) subfield to 0.
C (CF-Pollable): The AC sets the Contention Free Pollable (CF-
Pollable) subfield based on the table found in
[IEEE.802-11.2007].
F (CF-Poll Request): The AC sets the CF-Poll Request subfield
based on the table found in [IEEE.802-11.2007].
P (Privacy): The AC sets the Privacy subfield based on the
confidentiality requirements of the WLAN, as defined in
[IEEE.802-11.2007].
S (Short Preamble): The AC sets the Short Preamble subfield
based on whether the use of short preambles are permitted on
the WLAN, as defined in [IEEE.802-11.2007].
B (PBCC): The AC sets the Packet Binary Convolutional Code
(PBCC) modulation option subfield based on whether the use of
PBCC is permitted on the WLAN, as defined in
[IEEE.802-11.2007].
A (Channel Agility): The AC sets the Channel Agility subfield
based on whether the WTP is capable of supporting the High Rate
Direct Sequence Spread Spectrum (HR/DSSS), as defined in
[IEEE.802-11.2007].
M (Spectrum Management): The AC sets the Spectrum Management
subfield according to the value of the
dot11SpectrumManagementRequired MIB variable, as defined in
[IEEE.802-11.2007].
Q (QOS): The AC sets the Quality of Service (QOS) subfield based
on the table found in [IEEE.802-11.2007].
T (Short Slot Time): The AC sets the Short Slot Timesubfield
according to the value of the WTP's currently used slot time
value, as defined in [IEEE.802-11.2007].
D (APSD): The AC sets the APSD subfield according to the value
of the dot11APSDOptionImplemented Management Information Base
(MIB) variable, as defined in [IEEE.802-11.2007].
V (Reserved): The AC sets the Reserved subfield to zero, as
defined in [IEEE.802-11.2007].
O (DSSS-OFDM): The AC sets the DSSS-OFDM subfield to indicate
the use of Direct Sequence Spread Spectrum with Orthogonal
Frequency Division Multiplexing (DSSS-OFDM), as defined in
[IEEE.802-11.2007].
K (Delayed Block ACK): The AC sets the Delayed Block ACK
subfield according to the value of the
dot11DelayedBlockAckOptionImplemented MIB variable, as defined
in [IEEE.802-11.2007].
L (Immediate Block ACK): The AC sets the Delayed Block ACK
subfield according to the value of the
dot11ImmediateBlockAckOptionImplemented MIB variable, as
defined in [IEEE.802-11.2007].
Key-Index: The Key Index associated with the key. Key-Index: The Key Index associated with the key.
Key Status: A 1 byte value that specifies the state and usage of Key Status: A 1 byte value that specifies the state and usage of
the key that has been included. The following values describe the the key that has been included. The following values describe the
key usage and its status: key usage and its status:
0 - A value of zero, with the inclusion of the RSN Information 0 - A value of zero, with the inclusion of the RSN Information
Element means that the WLAN uses per-station encryption keys, Element means that the WLAN uses per-station encryption keys,
and therefore the key in the 'Key' field is only used for and therefore the key in the 'Key' field is only used for
skipping to change at page 77, line 8 skipping to change at page 78, line 8
[IEEE.802-11.2007] [IEEE.802-11.2007]
"Information technology - Telecommunications and "Information technology - Telecommunications and
information exchange between systems - Local and information exchange between systems - Local and
metropolitan area networks - Specific requirements - Part metropolitan area networks - Specific requirements - Part
11: Wireless LAN Medium Access Control (MAC) and Physical 11: Wireless LAN Medium Access Control (MAC) and Physical
Layer (PHY) specifications", IEEE Standard 802.11, 2007, < Layer (PHY) specifications", IEEE Standard 802.11, 2007, <
http://standards.ieee.org/getieee802/download/ http://standards.ieee.org/getieee802/download/
802.11-2007.pdf>. 802.11-2007.pdf>.
[I-D.ietf-capwap-protocol-specification] [I-D.ietf-capwap-protocol-specification]
Calhoun, P., "CAPWAP Protocol Specification", Montemurro, M., Stanley, D., and P. Calhoun, "CAPWAP
draft-ietf-capwap-protocol-specification-11 (work in Protocol Specification",
progress), July 2008. draft-ietf-capwap-protocol-specification-12 (work in
progress), September 2008.
[IEEE.802-1X.2004] [IEEE.802-1X.2004]
"Information technology - Telecommunications and "Information technology - Telecommunications and
information exchange between systems - Local and information exchange between systems - Local and
metropolitan area networks - Specific requirements - Port- metropolitan area networks - Specific requirements - Port-
Based Network Access Control", IEEE Standard 802.1X, 2004, Based Network Access Control", IEEE Standard 802.1X, 2004,
<http://standards.ieee.org/getieee802/download/ <http://standards.ieee.org/getieee802/download/
802.1X-2004.pdf>. 802.1X-2004.pdf>.
[IEEE.802-1Q.2005] [IEEE.802-1Q.2005]
 End of changes. 23 change blocks. 
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