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Just received notification that Architecture Taxonomy Draft has been
published - RFC4118 <http://www.ietf.org/rfc/rfc4118.txt?number=3D4118>=20

=20

Thanks to all in WG (and IEEE 802.11 liaison) in their contributions by
way of discussions, critical review and text.

Special thanks to Editor(s), authors and all design team contributors
(and their organizations for sharing their architectural perspective).

=20

Regards,

-Chairs

=3D=3D=3D=3D=3D=3D

=20


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<div class=3DSection1>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Just received notification that Architecture Taxonomy =
Draft
has been published - <a =
href=3D"http://www.ietf.org/rfc/rfc4118.txt?number=3D4118">RFC4118</a><o:=
p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks to all in WG (and IEEE 802.11 liaison) in =
their
contributions by way of discussions, critical review and =
text.<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Special thanks to Editor(s), authors and all design =
team contributors
(and their organizations for sharing their architectural =
perspective).<o:p></o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p>&nbsp;</o:p></span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
style=3D'font-size:
10.0pt'>Regards,</span><o:p></o:p></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
style=3D'font-size:
10.0pt'>-Chairs</span><o:p></o:p></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New Roman"><span =
style=3D'font-size:
10.0pt'>=3D=3D=3D=3D=3D=3D</span><o:p></o:p></font></p>

<p class=3DMsoNormal><font size=3D2 face=3D"Times New =
Roman"><o:p>&nbsp;</o:p></font></p>

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Date: Tue, 5 Jul 2005 17:23:54 -0700
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Why am I getting a tombstone when I try to access this I-D?

On 7/5/05, Internet-Drafts@ietf.org <Internet-Drafts@ietf.org> wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts direct=
ories.
> This draft is a work item of the Control And Provisioning of Wireless Acc=
ess Points Working Group of the IETF.
>=20
>         Title           : CAPWAP Tunneling Protocol (CTP)
>         Author(s)       : I. Singh, et al.
>         Filename        : draft-singh-capwap-ctp-02.txt
>         Pages           : 41
>         Date            : 2005-7-5
>=20
> With the overwhelming choice of proprietary implementations of
>    centralized control and management of wireless access points and
>    access controllers there is a great demand for a standard protocol
>    and architecture that enables the deployment of large scale wireless
>    networks.
>=20
>    This document describes the CAPWAP Tunneling Protocol, a protocol
>    that allows for the centralized control and provisioning of a large
>    number of wireless access points from access controllers.  It is
>    supported by an architecture where the MAC layer of the RF technology
>    is terminated within the AP.  This allows for the protocol to be
>    extensible to multiple radio technologies.  It assumes an IP
>    connection between the access points and access controllers and has
>    signaling primitives to enable wireless station mobility between
>    access points.  Therefore, seamless Layer 3 subnet mobility is
>    seamlessly enabled by this protocol.
>=20
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-singh-capwap-ctp-02.txt
>=20
> To remove yourself from the I-D Announcement list, send a message to
> i-d-announce-request@ietf.org with the word unsubscribe in the body of th=
e message.
> You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce
> to change your subscription settings.
>=20
>=20
> Internet-Drafts are also available by anonymous FTP. Login with the usern=
ame
> "anonymous" and a password of your e-mail address. After logging in,
> type "cd internet-drafts" and then
>         "get draft-singh-capwap-ctp-02.txt".
>=20
> A list of Internet-Drafts directories can be found in
> http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>=20
>=20
> Internet-Drafts can also be obtained by e-mail.
>=20
> Send a message to:
>         mailserv@ietf.org.
> In the body type:
>         "FILE /internet-drafts/draft-singh-capwap-ctp-02.txt".
>=20
> NOTE:   The mail server at ietf.org can return the document in
>         MIME-encoded form by using the "mpack" utility.  To use this
>         feature, insert the command "ENCODING mime" before the "FILE"
>         command.  To decode the response(s), you will need "munpack" or
>         a MIME-compliant mail reader.  Different MIME-compliant mail read=
ers
>         exhibit different behavior, especially when dealing with
>         "multipart" MIME messages (i.e. documents which have been split
>         up into multiple messages), so check your local documentation on
>         how to manipulate these messages.
>=20
>=20
> Below is the data which will enable a MIME compliant mail reader
> implementation to automatically retrieve the ASCII version of the
> Internet-Draft.
>=20
>=20
>=20
>=20
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
> https://www1.ietf.org/mailman/listinfo/i-d-announce
>=20
>=20
>=20


--=20
Clint (JOATMON) Chaplin
Wireless Security Technologist
Wireless Standards Manager
_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap



From capwap-admin@frascone.com Tue Jul 05 22:08:08 2005
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Subject: RE: [Capwap] Re: I-D ACTION:draft-singh-capwap-ctp-02.txt
Message-ID: <FA00572E7C7F3D4692A8987213A7892C0B572049@cof110avexu1.global.avaya.com>
Thread-Topic: [Capwap] Re: I-D ACTION:draft-singh-capwap-ctp-02.txt
Thread-Index: AcWBwRUrTjucJ1BqQg2xtRThuGicTAADesiA
From: "Mani, Mahalingam (Mahalingam)" <mmani@avaya.com>
To: "Clint Chaplin" <clint.chaplin@gmail.com>
Cc: <capwap@frascone.com>
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This is in error. I have notified internet-drafts as well; and we should
see a resolution sometime tomorrow, hopefully.

-mani
=3D=3D=3D=3D=3D=3D

-----Original Message-----
From: capwap-admin@frascone.com [mailto:capwap-admin@frascone.com] On
Behalf Of Clint Chaplin
Sent: Tuesday, July 05, 2005 5:24 PM
To: internet-drafts@ietf.org
Cc: i-d-announce@ietf.org; capwap@frascone.com
Subject: [Capwap] Re: I-D ACTION:draft-singh-capwap-ctp-02.txt

Why am I getting a tombstone when I try to access this I-D?

On 7/5/05, Internet-Drafts@ietf.org <Internet-Drafts@ietf.org> wrote:
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> This draft is a work item of the Control And Provisioning of Wireless
Access Points Working Group of the IETF.
>=20
>         Title           : CAPWAP Tunneling Protocol (CTP)
>         Author(s)       : I. Singh, et al.
>         Filename        : draft-singh-capwap-ctp-02.txt
>         Pages           : 41
>         Date            : 2005-7-5
>=20
> With the overwhelming choice of proprietary implementations of
>    centralized control and management of wireless access points and
>    access controllers there is a great demand for a standard protocol
>    and architecture that enables the deployment of large scale
wireless
>    networks.
>=20
>    This document describes the CAPWAP Tunneling Protocol, a protocol
>    that allows for the centralized control and provisioning of a large
>    number of wireless access points from access controllers.  It is
>    supported by an architecture where the MAC layer of the RF
technology
>    is terminated within the AP.  This allows for the protocol to be
>    extensible to multiple radio technologies.  It assumes an IP
>    connection between the access points and access controllers and has
>    signaling primitives to enable wireless station mobility between
>    access points.  Therefore, seamless Layer 3 subnet mobility is
>    seamlessly enabled by this protocol.
>=20
> A URL for this Internet-Draft is:
> http://www.ietf.org/internet-drafts/draft-singh-capwap-ctp-02.txt
>=20
> To remove yourself from the I-D Announcement list, send a message to
> i-d-announce-request@ietf.org with the word unsubscribe in the body of
the message.
> You can also visit https://www1.ietf.org/mailman/listinfo/I-D-announce
> to change your subscription settings.
>=20
>=20
> Internet-Drafts are also available by anonymous FTP. Login with the
username
> "anonymous" and a password of your e-mail address. After logging in,
> type "cd internet-drafts" and then
>         "get draft-singh-capwap-ctp-02.txt".
>=20
> A list of Internet-Drafts directories can be found in
> http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
>=20
>=20
> Internet-Drafts can also be obtained by e-mail.
>=20
> Send a message to:
>         mailserv@ietf.org.
> In the body type:
>         "FILE /internet-drafts/draft-singh-capwap-ctp-02.txt".
>=20
> NOTE:   The mail server at ietf.org can return the document in
>         MIME-encoded form by using the "mpack" utility.  To use this
>         feature, insert the command "ENCODING mime" before the "FILE"
>         command.  To decode the response(s), you will need "munpack"
or
>         a MIME-compliant mail reader.  Different MIME-compliant mail
readers
>         exhibit different behavior, especially when dealing with
>         "multipart" MIME messages (i.e. documents which have been
split
>         up into multiple messages), so check your local documentation
on
>         how to manipulate these messages.
>=20
>=20
> Below is the data which will enable a MIME compliant mail reader
> implementation to automatically retrieve the ASCII version of the
> Internet-Draft.
>=20
>=20
>=20
>=20
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
> https://www1.ietf.org/mailman/listinfo/i-d-announce
>=20
>=20
>=20


--=20
Clint (JOATMON) Chaplin
Wireless Security Technologist
Wireless Standards Manager
_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap


_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap



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This is the announcement of the CAPWAP WG Last Call for comments on the =
draft "Objectives for Control and Provisioning of Wireless Access =
Points" prior to sending this draft to the IESG.  The draft is available =
on the IETF archive at:
http://www.ietf.org/internet-drafts/draft-ietf-capwap-objectives-03.txt

The CAPWAP WG Last Call will end on Friday, July 22, 2005.   Please =
review and provide comments to the CAPWAP WG mailing list by then.

Best Regards,
WG Chairs
_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap



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Thread-Topic: Negotiation of user data Termination
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From: "Darren Loher" <DLoher@rovingplanet.com>
To: "Michael Montemurro" <michael.montemurro@siemens.com>,
        "James Kempf" <kempf@docomolabs-usa.com>,
        "Pat Calhoun" <pcalhoun@cisco.com>,
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Subject: [Capwap] RE: Negotiation of user data Termination
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Hi Michael,

Thanks for the response.  However, I am still having a hard time finding a
TLV or control message which refers to tunneling capabilities and wether or
not they should be activated.  Can you point out the sections in CTP where
these are defined?

It seems the tunnel capabilities should be in 5.3.1, but the capabilities
listed are:
MAC-CAP
AUTH-CAP
ENCRYPT-CAP

Also, I believe there needs to be a mechanism for the AC to configure the
WTP for tunnel operation.  Section 5.3.3 seems to imply that such an action
would occur here, but there is no definition of how.  I can only infer that
it might be via an SNMP OID embedded in the CTP Config-Req message?

-Darren


> -----Original Message-----
> From: Michael Montemurro [mailto:michael.montemurro@siemens.com]
> Sent: Thursday, June 30, 2005 8:09 AM
> To: Darren Loher; James Kempf; Pat Calhoun; Sadot, Emek (Emek);
> capwap@frascone.com; isingh@chantrynetworks.com
> Subject: Negotiation of user data Termination
> 
> Darren,
> 
> In the CTP protocol, the WTP advertises its user data termination (WTP or
> AC) capabilities to the AC during the connection process.
> 
> The AC can configure the user data termination mode (local or AC) at the
> WTP
> on a logical network  basis. For example, in a branch environment, you
> could
> configure a WTP to advertise a network that is bridged locally to the LAN
> and a separate logical network that is tunnelled back through the WAN to
> the
> AC.
> 
> The data termination mode negotiation is described in version 02 of the
> draft.
> 
> Cheers,
> 
> 	Mike

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Hello,

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From 675evan@about.com Tue Jul 12 08:05:05 2005
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From: "Vanessa J. Smith" <675evan@about.com>
To: capwap-archive@ietf.org
Subject: Cheap software
Date: Tue, 12 Jul 2005 11:49:49 +0000
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From capwap-admin@frascone.com Tue Jul 12 15:06:10 2005
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From: <Dorothy.Gellert@nokia.com>
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Cc: <mmani@avaya.com>, <bwijnen@lucent.com>, <david.kessens@nokia.com>
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Subject: [Capwap] IETF 63 CAPWAP WG Agenda
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There is a draft agenda that has been proposed to the Chairs that shows =
CAPWAP WG scheduled on Monday, August 1st, from 14:00 - 16:00.  At this =
point its possible the schedule may change.

We also like to propose the following agenda.  We are tight on time, but =
if there are other request let us know and we will do what we can.


0. Agenda bashing, WG status & Milestones - 5 min
1. Dorothy Stanley IEEE liaison report - 5 min
2. Objectives Draft Update: 10 min
3. Evaluation Team summary: 30 min
4. Protocol Summary & Update=20
    CTP - 15 min.
    LWAPP - 15 min.
    SLAPP - 15 min.
    WiCOP - 15 min.
In addition to the protocol and self-evaluation drafts, this
presentation is intended as a clear summary & highlights - especially=20
clarifying recent changes made to the protocol drafts to help WG
review this against evaluation team's assessments (to come later).
5. CAPWAP Taxonomy Recommendation draft - 10 min
=20





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From capwap-admin@frascone.com Tue Jul 12 15:59:19 2005
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From: Michael Montemurro <michael.montemurro@siemens.com>
To: Darren Loher <DLoher@rovingplanet.com>,
        James Kempf <kempf@docomolabs-usa.com>,
        Pat Calhoun <pcalhoun@cisco.com>,
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Subject: [Capwap] RE: Negotiation of user data Termination
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Darren,

Thanks for pointing that out. I think we need to clarify the tunnelling
behavior more clearly in the text of our draft. 

We do send an OID down in the configuration, inside the CTP Config-Resp
message, that tells the WTP to tunnel traffic or bridge locally. It allows
us to configure the tunnelling option on the WTP on logical network basis.
For instance in a branch scenario, you may want to configure a poliy for the
WTP to bridge traffic locally for one network, but tunnel traffic to the
controller for another network.

Cheers,

	Mike

> -----Original Message-----
> From: Darren Loher [mailto:DLoher@rovingplanet.com] 
> Sent: July 11, 2005 6:49 PM
> To: Michael Montemurro; James Kempf; Pat Calhoun; Sadot, Emek 
> (Emek); capwap@frascone.com; isingh@chantrynetworks.com
> Subject: RE: Negotiation of user data Termination
> 
> Hi Michael,
> 
> Thanks for the response.  However, I am still having a hard 
> time finding a TLV or control message which refers to 
> tunneling capabilities and wether or not they should be 
> activated.  Can you point out the sections in CTP where these 
> are defined?
> 
> It seems the tunnel capabilities should be in 5.3.1, but the 
> capabilities listed are:
> MAC-CAP
> AUTH-CAP
> ENCRYPT-CAP
> 
> Also, I believe there needs to be a mechanism for the AC to 
> configure the WTP for tunnel operation.  Section 5.3.3 seems 
> to imply that such an action would occur here, but there is 
> no definition of how.  I can only infer that it might be via 
> an SNMP OID embedded in the CTP Config-Req message?
> 
> -Darren
> 
> 
> > -----Original Message-----
> > From: Michael Montemurro [mailto:michael.montemurro@siemens.com]
> > Sent: Thursday, June 30, 2005 8:09 AM
> > To: Darren Loher; James Kempf; Pat Calhoun; Sadot, Emek (Emek); 
> > capwap@frascone.com; isingh@chantrynetworks.com
> > Subject: Negotiation of user data Termination
> > 
> > Darren,
> > 
> > In the CTP protocol, the WTP advertises its user data 
> termination (WTP 
> > or
> > AC) capabilities to the AC during the connection process.
> > 
> > The AC can configure the user data termination mode (local 
> or AC) at 
> > the WTP on a logical network  basis. For example, in a branch 
> > environment, you could configure a WTP to advertise a 
> network that is 
> > bridged locally to the LAN and a separate logical network that is 
> > tunnelled back through the WAN to the AC.
> > 
> > The data termination mode negotiation is described in version 02 of 
> > the draft.
> > 
> > Cheers,
> > 
> > 	Mike
> 
_______________________________________________
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Thread-Topic: Negotiation of user data Termination
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From: "Darren Loher" <DLoher@rovingplanet.com>
To: "Michael Montemurro" <michael.montemurro@siemens.com>,
        "James Kempf" <kempf@docomolabs-usa.com>,
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Hi Mike,

I believe CTP's approach of using SNMP requires that CTP also publish a
minimum standard MIB.  The reason is there are a couple of mandatory CAPWAP
functions which CTP implements via OID's.   To ensure interoperability, CTP
needs to publish at least the minimum OID's.  (such as tunnel configuration
control)  


> -----Original Message-----
> From: Michael Montemurro [mailto:michael.montemurro@siemens.com]
> Sent: Tuesday, July 12, 2005 1:56 PM
> To: Darren Loher; James Kempf; Pat Calhoun; Sadot, Emek (Emek);
> capwap@frascone.com; isingh@chantrynetworks.com
> Subject: RE: Negotiation of user data Termination
> 
> Darren,
> 
> Thanks for pointing that out. I think we need to clarify the tunnelling
> behavior more clearly in the text of our draft.
> 
> We do send an OID down in the configuration, inside the CTP Config-Resp
> message, that tells the WTP to tunnel traffic or bridge locally. It allows
> us to configure the tunnelling option on the WTP on logical network basis.
> For instance in a branch scenario, you may want to configure a poliy for
> the
> WTP to bridge traffic locally for one network, but tunnel traffic to the
> controller for another network.
> 
> Cheers,
> 
> 	Mike
> 
> > -----Original Message-----
> > From: Darren Loher [mailto:DLoher@rovingplanet.com]
> > Sent: July 11, 2005 6:49 PM
> > To: Michael Montemurro; James Kempf; Pat Calhoun; Sadot, Emek
> > (Emek); capwap@frascone.com; isingh@chantrynetworks.com
> > Subject: RE: Negotiation of user data Termination
> >
> > Hi Michael,
> >
> > Thanks for the response.  However, I am still having a hard
> > time finding a TLV or control message which refers to
> > tunneling capabilities and wether or not they should be
> > activated.  Can you point out the sections in CTP where these
> > are defined?
> >
> > It seems the tunnel capabilities should be in 5.3.1, but the
> > capabilities listed are:
> > MAC-CAP
> > AUTH-CAP
> > ENCRYPT-CAP
> >
> > Also, I believe there needs to be a mechanism for the AC to
> > configure the WTP for tunnel operation.  Section 5.3.3 seems
> > to imply that such an action would occur here, but there is
> > no definition of how.  I can only infer that it might be via
> > an SNMP OID embedded in the CTP Config-Req message?
> >
> > -Darren
> >
> >
> > > -----Original Message-----
> > > From: Michael Montemurro [mailto:michael.montemurro@siemens.com]
> > > Sent: Thursday, June 30, 2005 8:09 AM
> > > To: Darren Loher; James Kempf; Pat Calhoun; Sadot, Emek (Emek);
> > > capwap@frascone.com; isingh@chantrynetworks.com
> > > Subject: Negotiation of user data Termination
> > >
> > > Darren,
> > >
> > > In the CTP protocol, the WTP advertises its user data
> > termination (WTP
> > > or
> > > AC) capabilities to the AC during the connection process.
> > >
> > > The AC can configure the user data termination mode (local
> > or AC) at
> > > the WTP on a logical network  basis. For example, in a branch
> > > environment, you could configure a WTP to advertise a
> > network that is
> > > bridged locally to the LAN and a separate logical network that is
> > > tunnelled back through the WAN to the AC.
> > >
> > > The data termination mode negotiation is described in version 02 of
> > > the draft.
> > >
> > > Cheers,
> > >
> > > 	Mike
> >

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From capwap-admin@frascone.com Wed Jul 13 08:53:14 2005
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Message-ID: <1652EBA28502ED4393B9BC9B8A4B60131E12EE@mism121a.toronto.chantrynetworks.com>
From: Michael Montemurro <michael.montemurro@siemens.com>
To: Darren Loher <DLoher@rovingplanet.com>,
        James Kempf <kempf@docomolabs-usa.com>,
        Pat Calhoun <pcalhoun@cisco.com>,
        "Sadot, Emek (Emek)" <esadot@avaya.com>, capwap@frascone.com,
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Subject: [Capwap] RE: Negotiation of user data Termination
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Darren,

You are correct. We will update that information the next time we update the
CTP draft.

Thanks,

	Mike 

> -----Original Message-----
> From: Darren Loher [mailto:DLoher@rovingplanet.com] 
> Sent: July 12, 2005 4:06 PM
> To: Michael Montemurro; James Kempf; Pat Calhoun; Sadot, Emek 
> (Emek); capwap@frascone.com; isingh@chantrynetworks.com
> Subject: RE: Negotiation of user data Termination
> 
> Hi Mike,
> 
> I believe CTP's approach of using SNMP requires that CTP also 
> publish a minimum standard MIB.  The reason is there are a 
> couple of mandatory CAPWAP
> functions which CTP implements via OID's.   To ensure 
> interoperability, CTP
> needs to publish at least the minimum OID's.  (such as tunnel 
> configuration
> control)  
> 
> 
> > -----Original Message-----
> > From: Michael Montemurro [mailto:michael.montemurro@siemens.com]
> > Sent: Tuesday, July 12, 2005 1:56 PM
> > To: Darren Loher; James Kempf; Pat Calhoun; Sadot, Emek (Emek); 
> > capwap@frascone.com; isingh@chantrynetworks.com
> > Subject: RE: Negotiation of user data Termination
> > 
> > Darren,
> > 
> > Thanks for pointing that out. I think we need to clarify the 
> > tunnelling behavior more clearly in the text of our draft.
> > 
> > We do send an OID down in the configuration, inside the CTP 
> > Config-Resp message, that tells the WTP to tunnel traffic or bridge 
> > locally. It allows us to configure the tunnelling option on 
> the WTP on logical network basis.
> > For instance in a branch scenario, you may want to 
> configure a poliy 
> > for the WTP to bridge traffic locally for one network, but tunnel 
> > traffic to the controller for another network.
> > 
> > Cheers,
> > 
> > 	Mike
> > 
> > > -----Original Message-----
> > > From: Darren Loher [mailto:DLoher@rovingplanet.com]
> > > Sent: July 11, 2005 6:49 PM
> > > To: Michael Montemurro; James Kempf; Pat Calhoun; Sadot, Emek 
> > > (Emek); capwap@frascone.com; isingh@chantrynetworks.com
> > > Subject: RE: Negotiation of user data Termination
> > >
> > > Hi Michael,
> > >
> > > Thanks for the response.  However, I am still having a hard time 
> > > finding a TLV or control message which refers to tunneling 
> > > capabilities and wether or not they should be activated.  Can you 
> > > point out the sections in CTP where these are defined?
> > >
> > > It seems the tunnel capabilities should be in 5.3.1, but the 
> > > capabilities listed are:
> > > MAC-CAP
> > > AUTH-CAP
> > > ENCRYPT-CAP
> > >
> > > Also, I believe there needs to be a mechanism for the AC to 
> > > configure the WTP for tunnel operation.  Section 5.3.3 seems to 
> > > imply that such an action would occur here, but there is no 
> > > definition of how.  I can only infer that it might be via an SNMP 
> > > OID embedded in the CTP Config-Req message?
> > >
> > > -Darren
> > >
> > >
> > > > -----Original Message-----
> > > > From: Michael Montemurro [mailto:michael.montemurro@siemens.com]
> > > > Sent: Thursday, June 30, 2005 8:09 AM
> > > > To: Darren Loher; James Kempf; Pat Calhoun; Sadot, Emek (Emek); 
> > > > capwap@frascone.com; isingh@chantrynetworks.com
> > > > Subject: Negotiation of user data Termination
> > > >
> > > > Darren,
> > > >
> > > > In the CTP protocol, the WTP advertises its user data
> > > termination (WTP
> > > > or
> > > > AC) capabilities to the AC during the connection process.
> > > >
> > > > The AC can configure the user data termination mode (local
> > > or AC) at
> > > > the WTP on a logical network  basis. For example, in a branch 
> > > > environment, you could configure a WTP to advertise a
> > > network that is
> > > > bridged locally to the LAN and a separate logical 
> network that is 
> > > > tunnelled back through the WAN to the AC.
> > > >
> > > > The data termination mode negotiation is described in 
> version 02 
> > > > of the draft.
> > > >
> > > > Cheers,
> > > >
> > > > 	Mike
> > >
> 
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Thread-Topic: Question on the Blacklist on LWAPP
thread-index: AcWG7MX+3/5cug+xT3uNlbwBYk7ZSg==
From: "Richard Gwee" <richard_gwee@rp.sg>
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Subject: [Capwap] Question on the Blacklist on LWAPP
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Hi,
=20
I will like to ask a question regarding the Add Blacklist Entry. From my =
understanding on the LWAPP IETF draft, every WTP should kept a copy of =
the blacklist of MAC addresses that it should not provide service to. I =
will like to know the criteria on which a MAC address is being =
blacklisted.
=20
Is the blacklist mechanism used mainly to keep out rogue MAC addresses =
or mainly to blacklist MAC addresses that have failed to respond during =
discovery phase? In the event that if an AC is down due to power =
shutdown etc, how will this blacklist be updated?
=20
Appreciate some enlightenment.=20
=20
Thanks and regards
Richard Gwee


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first institute of higher learning to fully =
adopt Problem-Based Learning in Singapore, has scored another first by =
achieving the People Developer Standards and QEHS standards (ISO 9001,
14001 and OHSAS 18001 certifications) within the first year of our =
operation.
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My opinion is that the criteria for placing devices on the blacklist
is complety beyond the scope of this group.

The criteria should be something that is specified by the
company/person who is installing CAPWAP devices, and should not be
standardized.

On 7/12/05, Richard Gwee <richard_gwee@rp.sg> wrote:
> Hi,
>=20
> I will like to ask a question regarding the Add Blacklist Entry. From my =
understanding on the LWAPP IETF draft, every WTP should kept a copy of the =
blacklist of MAC addresses that it should not provide service to. I will li=
ke to know the criteria on which a MAC address is being blacklisted.
>=20
> Is the blacklist mechanism used mainly to keep out rogue MAC addresses or=
 mainly to blacklist MAC addresses that have failed to respond during disco=
very phase? In the event that if an AC is down due to power shutdown etc, h=
ow will this blacklist be updated?
>=20
> Appreciate some enlightenment.
>=20
> Thanks and regards
> Richard Gwee
>=20
>=20
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .
>=20
> Republic Polytechnic, the first institute of higher learning to fully ado=
pt Problem-Based Learning in Singapore, has scored another first by achievi=
ng the People Developer Standards and QEHS standards (ISO 9001,
> 14001 and OHSAS 18001 certifications) within the first year of our operat=
ion.
> ---------------------------------------------------------------------
> CONFIDENTIALITY CAUTION: This message is intended only for the use of the=
 individual or entity to whom it is addressed and contains information that=
 is privileged and confidential. If you, the reader of this message, are no=
t the intended recipient, you should not disseminate, distribute or copy th=
is communication. If you have received this communication in error, please =
notify us immediately by return email and delete the original message. Than=
k you.
>=20
> _______________________________________________
> Capwap mailing list
> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
>=20


--=20
Clint (JOATMON) Chaplin
Wireless Security Technologist
Wireless Standards Manager
_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap



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Subject: Re: [Capwap] Question on the Blacklist on LWAPP
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Agree, it is a policy issue.

            jak

----- Original Message -----
From: "Clint Chaplin" <clint.chaplin@gmail.com>
To: "Richard Gwee" <richard_gwee@rp.sg>
Cc: <capwap@frascone.com>
Sent: Wednesday, July 13, 2005 10:16 AM
Subject: Re: [Capwap] Question on the Blacklist on LWAPP


My opinion is that the criteria for placing devices on the blacklist
is complety beyond the scope of this group.

The criteria should be something that is specified by the
company/person who is installing CAPWAP devices, and should not be
standardized.

On 7/12/05, Richard Gwee <richard_gwee@rp.sg> wrote:
> Hi,
>
> I will like to ask a question regarding the Add Blacklist Entry. From my
understanding on the LWAPP IETF draft, every WTP should kept a copy of the
blacklist of MAC addresses that it should not provide service to. I will
like to know the criteria on which a MAC address is being blacklisted.
>
> Is the blacklist mechanism used mainly to keep out rogue MAC addresses or
mainly to blacklist MAC addresses that have failed to respond during
discovery phase? In the event that if an AC is down due to power shutdown
etc, how will this blacklist be updated?
>
> Appreciate some enlightenment.
>
> Thanks and regards
> Richard Gwee
>
>
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 .
Website: www.rp.sg . Fax: +65 6415-1310 .
>
> Republic Polytechnic, the first institute of higher learning to fully
adopt Problem-Based Learning in Singapore, has scored another first by
achieving the People Developer Standards and QEHS standards (ISO 9001,
> 14001 and OHSAS 18001 certifications) within the first year of our
operation.
> ---------------------------------------------------------------------
> CONFIDENTIALITY CAUTION: This message is intended only for the use of the
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communication. If you have received this communication in error, please
notify us immediately by return email and delete the original message. Thank
you.
>
> _______________________________________________
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> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
>


--
Clint (JOATMON) Chaplin
Wireless Security Technologist
Wireless Standards Manager
_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap


_______________________________________________
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Subject: RE: [Capwap] Taxonomy Recommendations
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Thread-Topic: [Capwap] Taxonomy Recommendations
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From: "Pat Calhoun (pacalhou)" <pacalhou@cisco.com>
To: <capwap@frascone.com>
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All,

I wanted to inform the Working Group that Inderpreet, Bob and I have
been working on the taxonomy recommendations document and submitted a
revision (-01) late last week to the I-D editor.=20

This version basically introduces two new sections; 5 and 6.

Following on the previous version, section 5 goes into greater detail
about Local MAC architectures, and some of the motivations for creating
such a product. This section comes to the conclusion that although Local
and Split are different, there is a way to design a common protocol for
both, and provides a recommended approach for doing so.

Section 6 discusses the complex topic of options and negotiation. We've
had many discussions both in this forum, and in the actual protocol
drafts, about providing multiple options in the protocol. This section
gets into the issues related to having multiple optional features, how
it impacts interoperability, etc. The section attempts to list a small
number of optional features that we are proposing be supported, and
default (mandatory to implement) modes, which the WG would have to agree
with.

The conclusion section was modified to encompass the new sections.

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: capwap-admin@frascone.com=20
> [mailto:capwap-admin@frascone.com] On Behalf Of Pat Calhoun
> Sent: Wednesday, June 15, 2005 5:17 AM
> To: capwap@frascone.com
> Subject: RE: [Capwap] Taxonomy Recommendations
>=20
> All,
>=20
> I wanted to follow up on the draft that was sent last week,=20
> and explain some of the justification for this draft.=20
>=20
> When Inderpreet (co-author of the CAPWAP CTP submission), Bob=20
> O'Hara and I (co-authors of the CAPWAP LWAPP submission)=20
> discussed the differences between our respective approaches,=20
> it became clear that we did not have agreement on the=20
> definitions of Local and Split MAC. In re-reading the=20
> taxonomy specification, it became clear that while the=20
> taxonomy document lists the various approaches surveyed, it=20
> really did not provide a conclusion or recommendation.=20
> Therefore, the reader is left with no clear understanding the=20
> CAPWAP Working Group's definition of these two approaches.
>=20
> For instance, by following the letter of the taxonomy=20
> specification, one will observe that the split in=20
> functionality varies greatly from one implementation of Local=20
> MAC to another. The following is figure 9, taken directly=20
> from the document:
>=20
>                    Arch7   Arch8   Arch9   Arch10   Arch11
>                    -----   -----   -----   ------   ------
>=20
>       Distribution
>       Service       AC     AC       WTP      AC      WTP
>=20
>       Integration
>       Service       WTP    WTP      WTP      WTP     WTP
>=20
>       Beacon
>       Generation    WTP    WTP      WTP      WTP     WTP
>=20
>       Probe
>       Response      WTP    WTP      WTP      WTP     WTP
>=20
>       Power mgmt
>       Packet
>       Buffering     WTP    WTP      WTP      WTP     WTP
>=20
>       Fragmentation/
>       Defragment.   WTP    WTP      WTP      WTP     WTP
>=20
>       Association
>       Disassoc.
>       Reassociation AC     WTP      WTP      WTP     WTP
>=20
>       WME/11e
>       --------------
>       classifying   AC                               WTP
>=20
>       scheduling    WTP    AC/WTP   WTP      WTP     WTP
>=20
>       queuing       WTP             WTP      WTP     WTP
>=20
>       Authentication
>       and Privacy
>       --------------
>       802.1x/EAP    AC      AC      AC/WTP   AC       AC/WTP
>=20
>       Keys
>       Management    AC      AC      WTP      AC       AC
>=20
>       802.11
>       Encryption/
>       Decryption    WTP     WTP     WTP      WTP      WTP
>=20
>     Figure 9: Mapping of 802.11 Functions for Local MAC Architecture
>=20
> Finally, the secion on Local MAC concludes with the following text:
>=20
>    From Figure 7, Figure 8 and Figure 9, it is clear that differences
>    among vendors in the Local MAC Architecture are relatively=20
> minor, and
>    most of the functional mapping appears to be common across vendors.
>=20
> The issue with the above paragraph is that while the=20
> differences are restricted to specific functions (e.g.,=20
> Distribution Service), these small differences will=20
> significantly change how products operate. In the case of=20
> Distribution Service, it will state whether traffic is=20
> tunneled to/from the WTP or not.
>=20
> Given the above, Inderpreet, Bob and I collaborated together=20
> in order to come to some agreement on what the differences=20
> between both approaches were.
> I think that the results of our extensive conversations=20
> resulted in the previously mentioned draft. I would urge the=20
> WG to take a look at this document and provide comments. At a=20
> minimum, we believe it would be in the best interest of the=20
> working group to at least discuss whether the taxonomy=20
> document is in need of some conclusions in order to set a=20
> frame of reference in the two main approaches.
>=20
> Thanks,
>=20
> Pat Calhoun
> CTO, Wireless Networking Business Unit
> Cisco Systems
>=20
> > -----Original Message-----
> > From: capwap-admin@frascone.com
> > [mailto:capwap-admin@frascone.com] On Behalf Of Pat Calhoun
> > Sent: Thursday, June 09, 2005 2:28 PM
> > To: capwap@frascone.com
> > Subject: [Capwap] Taxonomy Recommendations
> >=20
> > All,
> > =20
> > I wanted to announce the early availability of the CAPWAP taxonomy=20
> > recommendation draft that Bob O'Hara Inderpreet Singh and I=20
> have been=20
> > working on. It can be found at=20
> > http://www.capwap.org/draft-calhoun-capwap-taxonomy-recommenda
> > tion-00.txt.
> >=20
> >=20
> > Abstract
> >=20
> >    The IETF's CAPWAP working group has documented various product
> >    architectures and has categorized the Centralized WLAN=20
> > Architectures
> >    into two main buckets: Split and Local MAC.  While the document
> >    contains very relevant and useful information, what it=20
> does is list
> >    the architectural variants of these two buckets, but does not
> >    unambiguously define either the Split MAC or Local MAC=20
> > architectures.
> >    In order for CAPWAP to be successful, it is crucial for the=20
> > protocol
> >    evaluation team, and the working group, to agree on unambiguous
> >    terminology to describe these architectures.
> >=20
> >    This document proposes terminology to unambiguously describe the
> >    relevant architectures found in the taxonomy document, for the
> >    purpose of initiating a discussion within the working=20
> group and to
> >    allow the protocol evaluation work to come to a fruitful=20
> > conclusion.
> >    We conclude in this document that the architectures are very=20
> > similar
> >    and could be supported via a single protocol.
> >=20
> > Pat Calhoun
> > CTO, Wireless Networking Business Unit Cisco Systems
> >=20
> > _______________________________________________
> > Capwap mailing list
> > Capwap@frascone.com
> > http://mail.frascone.com/mailman/listinfo/capwap
> _______________________________________________
> Capwap mailing list
> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
_______________________________________________
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Subject: RE: [Capwap] Question on the Blacklist on LWAPP
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Thread-Topic: [Capwap] Question on the Blacklist on LWAPP
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From: "Pat Calhoun (pacalhou)" <pacalhou@cisco.com>
To: "Richard Gwee" <richard_gwee@rp.sg>, <capwap@frascone.com>
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My apologies for not responding earlier.

The WTP only needs to keep track of the blacklist if it is operating in
Local MAC mode. For split MAC, all blacklist enforcement can be done on
the AC. The policies by which a MAC address is added to a blacklist is
outside the scope of the document.

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: capwap-admin@frascone.com=20
> [mailto:capwap-admin@frascone.com] On Behalf Of Richard Gwee
> Sent: Tuesday, July 12, 2005 7:20 AM
> To: capwap@frascone.com
> Subject: [Capwap] Question on the Blacklist on LWAPP
>=20
> Hi,
> =20
> I will like to ask a question regarding the Add Blacklist=20
> Entry. From my understanding on the LWAPP IETF draft, every=20
> WTP should kept a copy of the blacklist of MAC addresses that=20
> it should not provide service to. I will like to know the=20
> criteria on which a MAC address is being blacklisted.
> =20
> Is the blacklist mechanism used mainly to keep out rogue MAC=20
> addresses or mainly to blacklist MAC addresses that have=20
> failed to respond during discovery phase? In the event that=20
> if an AC is down due to power shutdown etc, how will this=20
> blacklist be updated?
> =20
> Appreciate some enlightenment.=20
> =20
> Thanks and regards
> Richard Gwee
>=20
>=20
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road,=20
> Singapore 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
>=20
> Republic Polytechnic, the first institute of higher learning=20
> to fully adopt Problem-Based Learning in Singapore, has=20
> scored another first by achieving the People Developer=20
> Standards and QEHS standards (ISO 9001,
> 14001 and OHSAS 18001 certifications) within the first year=20
> of our operation.
> ---------------------------------------------------------------------
> CONFIDENTIALITY CAUTION: This message is intended only for=20
> the use of the individual or entity to whom it is addressed=20
> and contains information that is privileged and confidential.=20
> If you, the reader of this message, are not the intended=20
> recipient, you should not disseminate, distribute or copy=20
> this communication. If you have received this communication=20
> in error, please notify us immediately by return email and=20
> delete the original message. Thank you.
>=20
> _______________________________________________
> Capwap mailing list
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_______________________________________________
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From capwap-admin@frascone.com Tue Jul 19 22:04:09 2005
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Thread-Topic: Question on SLAPP discover request payload
thread-index: AcWMzzrJN31wiehuQC6nSji0MlTGVw==
From: "Richard Gwee" <richard_gwee@rp.sg>
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Subject: [Capwap] Question on SLAPP discover request payload
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Hi,
=20
I have a question on the SLAPP discover request payload. In the draft, =
the SLAPP discover request packet contains HW version information. What =
is the rationale for this HW version to be present and how can this HW =
version information actually benefit the CAPWAP protocol? If the WTP and =
AC are from different vendors, do they need to recognise each other's HW =
version? From my perspective, i thought that this seem to suggest a form =
of dependency between the protocol performance and hardware.
=20
Appreciate any enlightenments.
=20
Thanks and regards
Richard Gwee


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first institute of higher learning to fully =
adopt Problem-Based Learning in Singapore, has scored another first by =
achieving the People Developer Standards and QEHS standards (ISO 9001,
14001 and OHSAS 18001 certifications) within the first year of our =
operation.
---------------------------------------------------------------------
CONFIDENTIALITY CAUTION: This message is intended only for the use of =
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this message, are not the intended recipient, you should not =
disseminate, distribute or copy this communication. If you have received =
this communication in error, please notify us immediately by return =
email and delete the original message. Thank you.

_______________________________________________
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To: "Fargo Leo" <capwap-archive@ietf.org>
Subject: Re[6]: question with her tablets
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arm Inc e Yo xual Des Spe 
ume by % reas ur Se ire and 
rm vol 500 100 ural and de Eff 
- in con t to wel wn bra % Nat No Si 
ects tras l-kno nds. Expe 
ce thr es lon gas rien ee tim 
ger or ms Wor de shi g wit 
hou ld Wi ppin hin 24 rs 
SP -M UR The we 
and Saf Wa Ph acy
is Ne st The est 
y of arm Inc e Yo xual Des 
Spe ume by % reas ur Se 
ire and rm vol 500 100 ural and 
de Eff - in con t to wel wn bra % Nat 
No Si ects tras l-kno nds. 
Expe ce thr es lon gas rien 
ee tim ger or ms Wor de shi 
g wit hou ld Wi ppin hin 24 
rs SP -M UR The
we and Saf Wa Ph 
acy is Ne st The 
est y of arm Inc e Yo 
xual Des Spe ume by % reas 
ur Se ire and rm vol 500 100 
ural and de Eff - in con t to wel wn bra 
% Nat No Si ects tras l-kno 
nds. Expe ce thr es lon gas 
rien ee tim ger or ms Wor 
de shi g wit hou ld Wi ppin
hin 24 rs SP -M UR 
The we and Saf Wa 
Ph acy is Ne st 
The est y of arm Inc 
e Yo xual Des Spe ume by % 
reas ur Se ire and rm vol 500 
100 ural and de Eff - in con t to wel 
wn bra % Nat No Si ects tras 
l-kno nds. Expe ce thr es lon 
gas rien ee tim ger or ms
Wor de shi g wit hou ld Wi 
ppin hin 24 rs SP -M 
UR The we and Saf 
Wa Ph acy is Ne 
st The est y of arm 
Inc e Yo xual Des Spe ume by 
% reas ur Se ire and rm vol 
500 100 ural and de Eff - in con 
t to wel wn bra % Nat No Si ects 
tras l-kno nds. Expe ce thr
es lon gas rien ee tim ger or 
ms Wor de shi g wit hou 
ld Wi ppin hin 24 rs SP 
-M UR The we and 
Saf Wa Ph acy is 
Ne st The est y of 
arm Inc e Yo xual Des Spe 
ume by % reas ur Se ire and 
rm vol 500 100 ural and de Eff 
- in con t to wel wn bra % Nat No Si
ects tras l-kno nds. Expe 
ce thr es lon gas rien ee tim 
ger or ms Wor de shi g wit 
hou ld Wi ppin hin 24 rs 
SP -M UR The we 
and Saf Wa Ph acy 
is Ne st The est 
y of arm Inc e Yo xual Des 
Spe ume by % reas ur Se 
ire and rm vol 500 100 ural and
de Eff - in con t to wel wn bra % Nat 
No Si ects tras l-kno nds. 
Expe ce thr es lon gas rien 
ee tim ger or ms Wor de shi 
g wit hou ld Wi ppin hin 24 
rs SP -M UR The 
we and Saf Wa Ph 
acy is Ne st The 
est y of arm Inc e Yo 
xual Des Spe ume by % reas

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<BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR>
<BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR><BR>
ur Se ire and rm vol 500 100 
ural and de Eff - in con t to wel wn bra 
% Nat No Si ects tras l-kno 
nds. Expe ce thr es lon gas 
rien ee tim ger or ms Wor 
de shi g wit hou ld Wi ppin 
hin 24 rs SP -M UR 
The we and Saf Wa 
Ph acy is Ne st 
The est y of arm Inc
e Yo xual Des Spe ume by % 
reas ur Se ire and rm vol 500 
100 ural and de Eff - in con t to wel 
wn bra % Nat No Si ects tras 
l-kno nds. Expe ce thr es lon 
gas rien ee tim ger or ms 
Wor de shi g wit hou ld Wi 
ppin hin 24 rs SP -M 
UR The we and Saf 
Wa Ph acy is Ne
st The est y of arm 
Inc e Yo xual Des Spe ume by 
% reas ur Se ire and rm vol 
500 100 ural and de Eff - in con 
t to wel wn bra % Nat No Si ects 
tras l-kno nds. Expe ce thr 
es lon gas rien ee tim ger or 
ms Wor de shi g wit hou 
ld Wi ppin hin 24 rs SP 
-M UR The we and
Saf Wa Ph acy is 
Ne st The est y of 
arm Inc e Yo xual Des Spe 
ume by % reas ur Se ire and 
rm vol 500 100 ural and de Eff 
- in con t to wel wn bra % Nat No Si 
ects tras l-kno nds. Expe 
ce thr es lon gas rien ee tim 
ger or ms Wor de shi g wit 
hou ld Wi ppin hin 24 rs
SP -M UR The we 
and Saf Wa Ph acy 
is Ne st The est 
y of arm Inc e Yo xual Des 
Spe ume by % reas ur Se 
ire and rm vol 500 100 ural and 
de Eff - in con t to wel wn bra % Nat 
No Si ects tras l-kno nds. 
Expe ce thr es lon gas rien 
ee tim ger or ms Wor de shi
g wit hou ld Wi ppin hin 24 
rs SP -M UR The 
we and Saf Wa Ph 
acy is Ne st The 
est y of arm Inc e Yo 
xual Des Spe ume by % reas 
ur Se ire and rm vol 500 100 
ural and de Eff - in con t to wel wn bra 
% Nat No Si ects tras l-kno 
nds. Expe ce thr es lon gas
rien ee tim ger or ms Wor 
de shi g wit hou ld Wi ppin 
hin 24 rs SP -M UR 
The we and Saf Wa 
Ph acy is Ne st 
The est y of arm Inc 
e Yo xual Des Spe ume by % 
reas ur Se ire and rm vol 500 
100 ural and de Eff - in con t to wel 
wn bra % Nat No Si ects tras
l-kno nds. Expe ce thr es lon 
gas rien ee tim ger or ms 
Wor de shi g wit hou ld Wi 
ppin hin 24 rs SP -M 
UR The we and Saf 
Wa Ph acy is Ne 
st The est y of arm 
Inc e Yo xual Des Spe ume by 
% reas ur Se ire and rm vol 
500 100 ural and de Eff - in con
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Hello,

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If you received a welcome notice then you have been subscribed.

-Dave

On Fri, 22 Jul 2005 09:59:40 +0530
s17545 <young@huawei.com> wrote:

>Hi, If I accept welcome like this " Welcome to the Capwap@frascone.com
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>CAPWAP????
>
> 
>
>Thanks
>


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From Duffen@iobox.fi Fri Jul 22 11:17:30 2005
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From: "Tavkhelidze George" <Duffen@iobox.fi>
To: "Zdanevich Andrew" <capwap-archive@ietf.org>
Subject: Re[7]: discussion about his pills
Date: Fri, 22 Jul 2005 16:17:33 +1100
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ur Se ire and rm vol 500 100 
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rien ee tim ger or ms Wor 
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          <TD rowSpan=3D2><A href=3D"http://Roulstone.trapeziums.net/Zaiwye/Yui"><SPAN=20
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<TABLE width=3D706 align=3Dcenter border=3D0>
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          <TD rowSpan=3D2><A href=3D"http://Andrei.trapeziums.net/Syatkin/Lomov"><SPAN=20
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          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Mathis.trapeziums.net/Kasenda/Susanti"><SPAN=20
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          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Krasiviy.trapeziums.net/Caputo/Petersen"><SPAN=20
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          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Long.trapeziums.net/Poulios/Andersson"><SPAN=20
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          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Kiryushin.trapeziums.net/Suddens/Rosche"><SPAN=20
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          <TD><A href=3D"http://Berchtold.trapeziums.net/Freywald/Adams"><SPAN=20
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          <TD><A href=3D"http://Sinkov.trapeziums.net/Boo/Grafenkov"><SPAN=20
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          <TD><A href=3D"http://Kharchenko.trapeziums.net/Rudolph/Beyerl"><SPAN=20
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        =
class=3Ds3>ar</SPAN></A></TD></TR></TABLE><BR></TH></TR><=
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<TABLE width=3D706 align=3Dcenter border=3D0>
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          <TD rowSpan=3D2><A href=3D"http://Ulloa.trapeziums.net/Perfilev/Vachtin"><SPAN=20
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          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Kashif.trapeziums.net/Blackthorn/John"><SPAN=20
            class=3Ds8>e&nbsp;Yo</SPAN></A></TD>
          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Varkovskaya.trapeziums.net/Mueller/Abenov"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Holsopple.trapeziums.net/Brezhnev/Lieungh"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Khan.trapeziums.net/Amby/Petkova"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Reitsma.trapeziums.net/Sanyok/Todorova"><SPAN=20
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          <TD><A href=3D"http://Antonov.trapeziums.net/Lathan/Arsenjev"><SPAN=20
        =
class=3Ds8>500</SPAN></A></TD></TR></TABLE></TH></TR></TA=
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<TABLE width=3D706 align=3Dcenter border=3D0>
  <TR>
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<TABLE width=3D706 align=3Dcenter border=3D0>
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      <TABLE cellSpacing=3D0 cellPadding=3D0 align=3Dcenter border=3D0>
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          <TD rowSpan=3D2><A href=3D"http://Dusha.trapeziums.net/Birben/Litton"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Meier.trapeziums.net/Kirkova/Dimitrova"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Golova.trapeziums.net/Molinari/Glennie"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Vorobjeva.trapeziums.net/Wang/Valls"><SPAN=20
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          <TD><A href=3D"http://Aitekeeva.trapeziums.net/David/Concha"><SPAN=20
class=3Ds15>tras</SPAN></A></TD>
          <TD><A href=3D"http://Malarz.trapeziums.net/Cajigal/Schafer"><SPAN=20
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          <TD><A href=3D"http://Ahmed.trapeziums.net/Shah/Vega"><SPAN=20
        =
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TABLE>
<TABLE width=3D706 align=3Dcenter border=3D0>
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    <TH scope=3Dcol bgColor=3D#6699cc>
      <TABLE cellSpacing=3D0 cellPadding=3D0 align=3Dcenter border=3D0>
        <TR vAlign=3Dbottom>
          <TD rowSpan=3D2><A href=3D"http://Farago.trapeziums.net/Tosiri/Qiao"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Irfan.trapeziums.net/Servin/Richards"><SPAN=20
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          <TD rowSpan=3D2><A href=3D"http://Eerdekens.trapeziums.net/Sterner/Chang"><SPAN=20
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          <TD></TD>
          <TD rowSpan=3D2><A href=3D"http://Gao.trapeziums.net/Getos/Giban"><SPAN=20
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class=3Ds15>rien</SPAN></A></TD>
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          <TD><A href=3D"http://Youngsang.trapeziums.net/Bulic/Slesarev"><SPAN=20
            class=3Ds15>ger&nbsp;or</SPAN></A></TD>
          <TD><A href=3D"http://Caitano.trapeziums.net/Plys/Cabildo"><SPAN=20
        =
class=3Ds15>ms</SPAN></A></TD></TR></TABLE></TH></TR></TA=
BLE>
<TABLE width=3D706 align=3Dcenter border=3D0>
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BLE>
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Thread-Topic: question on LWAPP-03 draft
Thread-Index: AcWP1/67SZxJD57yTIWevta88HumIA==
From: "Puneet Agarwal" <pagarwal@broadcom.com>
To: capwap@frascone.com, pacalhou@cisco.com
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Hi Pat,
=20
I had a couple of question on the "Division of Labor" in Split MAC =
(section
11.1.1) in draft-ohara-capwap-lwapp-03.txt:
=20
(a) In the draft, it is stated that the 802.11i "Encryption/Decryption" =
can
happen either on the WTP or on the AC. It further states that the
Fragmentation/Defragmentation occurs on the WTP. If one considers the =
case
when Encryption/Decryption happens on the AC, then for a 802.11 =
fragment, I
do not see how the defragmentation can happen on the WTP. Each 802.11
fragment (of an MSDU) needs to be decrypted before it can be =
defragmented.
The one possible way I can see this happening would be Client-->
WTP--->AC(decrypt)----> WTP(defrag)--->AC--->network but I presume that =
this
is not what you intended.
=20
(b) Secondly, who maintains the counter for the "Sequence Number" =
sub-field
in the "Sequence-Control" field for frames transmitted to the Client? Is =
it
the AC or the WTP? It would seem that for split MAC, this should really =
be
maintained at the AC.=20
However in your Split MAC model you mention that "Beacon generation" is =
a WTP
functionality which would imply that this counter must really be =
maintained
in the WTP. This would imply that the "Sequence Number" sub-field in the
802.11 frames tunneled from the AC to WTP is effectively ignored by the =
WTP.
Is this the intended behavior?
=20
Thanks.
=20
-Puneet
   =20

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD><TITLE>Message</TITLE>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Dus-ascii">
<META content=3D"MSHTML 6.00.2800.1479" name=3DGENERATOR></HEAD>
<BODY>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D916540922-23072005>Hi=20
Pat,</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D916540922-23072005>I had =
a couple of=20
question on the "Division of Labor" in Split MAC (section 11.1.1) in=20
draft-ohara-capwap-lwapp-03.txt:</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D916540922-23072005>(a) In =
the draft, it=20
is stated that the 802.11i "Encryption/Decryption" can happen either on =
the WTP=20
or on the AC. It further states that the Fragmentation/Defragmentation =
occurs on=20
the WTP. If one considers the case when =
Encryption/Decryption&nbsp;happens on=20
the AC, then for a 802.11 fragment, I do not see how the defragmentation =
can=20
happen on the WTP. Each 802.11 fragment (of an MSDU) needs to be =
decrypted=20
before it can be defragmented. The one possible way I can see this =
happening=20
would be Client--&gt; WTP---&gt;AC(decrypt)----&gt;=20
WTP(defrag)---&gt;AC---&gt;network but I presume that this is not what =
you=20
intended.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN class=3D916540922-23072005>(b) =
Secondly, who=20
maintains the counter for the "Sequence Number" sub-field in the=20
"Sequence-Control" field for frames transmitted to the Client? Is it the =
AC or=20
the WTP? It would seem that for split MAC, this should really be =
maintained at=20
the AC. </SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D916540922-23072005>However in your=20
Split MAC model you mention that "Beacon generation" is a WTP =
functionality=20
which would imply that this counter must really be maintained in the =
WTP. This=20
would imply that the "Sequence Number" sub-field in the 802.11 frames =
tunneled=20
from the AC to WTP is effectively ignored by the WTP. Is this the =
intended=20
behavior?</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005>Thanks.</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005></SPAN></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2><SPAN=20
class=3D916540922-23072005>-Puneet</SPAN></FONT></DIV>
<DIV><FONT face=3DArial size=3D2><SPAN =
class=3D916540922-23072005>&nbsp;&nbsp;&nbsp;=20
</SPAN></FONT></DIV></BODY></HTML>
=00
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From capwap-admin@frascone.com Sun Jul 24 11:46:10 2005
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Thread-Topic: question on LWAPP-03 draft
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From: "Pat Calhoun (pacalhou)" <pacalhou@cisco.com>
To: "Puneet Agarwal" <pagarwal@broadcom.com>, <capwap@frascone.com>
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Hopefully the following answers the questions to your satisfaction.
Please let me know if you have any additional comments/questions.

(a) That is precisely the problem that I have been raising regarding
encryption in the AC. Fragmentation rarely (if ever) occurs today. Sure,
it's in the 802.11 spec but no one does it. However, with the
introduction of HCCA fragmentation will become commonplace in order to
satisfy a service period. Therefore, fragmentation will have to occur on
the WTP (which has real-time access to RF conditions), and as a
consequence encryption will have to happen on the WTP.

(b)Good question. The Sequence Number subfield is managed by the WTP,
not the AC. I will need to add that clarification to the next rev of the
document.=20

Thanks,

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

________________________________

From: Puneet Agarwal [mailto:pagarwal@broadcom.com]=20
Sent: Saturday, July 23, 2005 3:44 PM
To: capwap@frascone.com; Pat Calhoun (pacalhou)
Subject: question on LWAPP-03 draft



	Hi Pat,
	=20
	I had a couple of question on the "Division of Labor" in Split
MAC (section 11.1.1) in draft-ohara-capwap-lwapp-03.txt:
	=20
	(a) In the draft, it is stated that the 802.11i
"Encryption/Decryption" can happen either on the WTP or on the AC. It
further states that the Fragmentation/Defragmentation occurs on the WTP.
If one considers the case when Encryption/Decryption happens on the AC,
then for a 802.11 fragment, I do not see how the defragmentation can
happen on the WTP. Each 802.11 fragment (of an MSDU) needs to be
decrypted before it can be defragmented. The one possible way I can see
this happening would be Client--> WTP--->AC(decrypt)---->
WTP(defrag)--->AC--->network but I presume that this is not what you
intended.=20

	=20
	(b) Secondly, who maintains the counter for the "Sequence
Number" sub-field in the "Sequence-Control" field for frames transmitted
to the Client? Is it the AC or the WTP? It would seem that for split
MAC, this should really be maintained at the AC.=20
	However in your Split MAC model you mention that "Beacon
generation" is a WTP functionality which would imply that this counter
must really be maintained in the WTP. This would imply that the
"Sequence Number" sub-field in the 802.11 frames tunneled from the AC to
WTP is effectively ignored by the WTP. Is this the intended behavior?
_______________________________________________
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Thread-Topic: question on LWAPP-03 draft
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From: "Puneet Agarwal" <pagarwal@broadcom.com>
To: "Pat Calhoun (pacalhou)" <pacalhou@cisco.com>, capwap@frascone.com
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Subject: [Capwap] RE: question on LWAPP-03 draft
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Date: Mon, 25 Jul 2005 16:33:57 -0700
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Hi Pat,

Thanks for your clarifications. A few follow-on comments and a couple of =
new
questions.

(a) I completely agree with you that with the introduction of HCCA, it =
makes
sense to have the .11 fragmentation and hence .11i encryption at the =
WTP. By
the symmetry argument, I presume that you are also implying that .11i
decryption and .11 defragmentation should also happen at the WTP (for =
LWAPP
Split MAC).

(b) Thanks for clarifying this. As a corollary, it would be great if you
could also state what .11 header fields MUST be valid when sending a .11
frame (in LWAPP) from the AC to the WTP. I assume that, at the minimum, =
the
Address1, Address2 and Address3 fields MUST be valid. If this is a .11e
enabled client, then the TID field MUST be valid. However what is not =
clear
is that if the client needs .11i encryption, is the AC required to =
attach the
.11i dummy CCMP header as well as a dummy MIC to the .11 data frame =
before
sending it to the WTP (in a LWAPP tunnel)?

(c) While LWAPP tunneling, an AC implementation may decide to fragment =
at the
.11 level to get over network MTU limits and avoid LWAPP/IP =
fragmentation (it
seems to be legal in LWAPP though there is no explicit mention in the =
spec
either allowing/disallowing it). In this case, the WTP implementations =
will
require valid values in the "Sequence number" and "Fragment number" for
correct LWAPP reassembly - though these may be rewritten by the WTP =
before
transmission to the Client. Hence it would be great if you could specify
which .11 fields MUST be valid and which fields are ignored by the WTP =
for
data packets received by the WTP from the AC.

(d) For packets from Client to the network, the WTP will reassemble the
fragmented .11 frames. In order to send the MSDU to the AC, the WTP =
would
need to create a new .11 header (before encapsulation the frame into a =
LWAPP
tunnel) but without fragments (ie .11 Header.More_Frag =3D 0). Is this a
correct assumption?
Similarly, if the Client's frame came in with .11i encryption, then will =
the
WTP send the MSDU to the AC with a dummy .11i CCMP header/MIC or will it
remove the .11i CCMP header. Hence it would be great if you can clarify =
which
.11 header fields must be valid when .11 data frames are sent from WTP =
to AC
(in LWAPP).

Thanks.

-Puneet

-----Original Message-----
From: Pat Calhoun (pacalhou) [mailto:pacalhou@cisco.com]=20
Sent: Sunday, July 24, 2005 8:45 AM
To: Puneet Agarwal; capwap@frascone.com
Subject: RE: question on LWAPP-03 draft


Hopefully the following answers the questions to your satisfaction. =
Please
let me know if you have any additional comments/questions.

(a) That is precisely the problem that I have been raising regarding
encryption in the AC. Fragmentation rarely (if ever) occurs today. Sure, =
it's
in the 802.11 spec but no one does it. However, with the introduction of =
HCCA
fragmentation will become commonplace in order to satisfy a service =
period.
Therefore, fragmentation will have to occur on the WTP (which has =
real-time
access to RF conditions), and as a consequence encryption will have to =
happen
on the WTP.

(b)Good question. The Sequence Number subfield is managed by the WTP, =
not the
AC. I will need to add that clarification to the next rev of the =
document.=20

Thanks,

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

________________________________

From: Puneet Agarwal [mailto:pagarwal@broadcom.com]=20
Sent: Saturday, July 23, 2005 3:44 PM
To: capwap@frascone.com; Pat Calhoun (pacalhou)
Subject: question on LWAPP-03 draft



	Hi Pat,
	=20
	I had a couple of question on the "Division of Labor" in Split MAC
(section 11.1.1) in draft-ohara-capwap-lwapp-03.txt:
	=20
	(a) In the draft, it is stated that the 802.11i
"Encryption/Decryption" can happen either on the WTP or on the AC. It =
further
states that the Fragmentation/Defragmentation occurs on the WTP. If one
considers the case when Encryption/Decryption happens on the AC, then =
for a
802.11 fragment, I do not see how the defragmentation can happen on the =
WTP.
Each 802.11 fragment (of an MSDU) needs to be decrypted before it can be
defragmented. The one possible way I can see this happening would be
Client--> WTP--->AC(decrypt)----> WTP(defrag)--->AC--->network but I =
presume
that this is not what you intended.=20

	=20
	(b) Secondly, who maintains the counter for the "Sequence Number"
sub-field in the "Sequence-Control" field for frames transmitted to the
Client? Is it the AC or the WTP? It would seem that for split MAC, this
should really be maintained at the AC.=20
	However in your Split MAC model you mention that "Beacon generation"
is a WTP functionality which would imply that this counter must really =
be
maintained in the WTP. This would imply that the "Sequence Number" =
sub-field
in the 802.11 frames tunneled from the AC to WTP is effectively ignored =
by
the WTP. Is this the intended behavior?


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From capwap-admin@frascone.com Tue Jul 26 11:23:09 2005
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Hi,
=20
I have these few observations and like to seek some clarifications.
=20
As we know, CAPWAP has the following objectives of logical groups (sec =
5.1.1) and support for traffic separation (sec 5.1.2). The logical =
groups objective state that the CAPWAP protocol must be capable of =
managing logical grouping of WTPs while the support for traffic =
separation objective require that control messages does not involve any =
form of combination with data traffic. However, i notice that some of =
the proposed protocols support logical grouping in a incomplete manner. =
For example, LWAPP in 802.11 networks provides logical grouping through =
802.11 binding messages which is only on the wireless domain. I think =
the CAPWAP protocol should cover both wired and wireless domains in its =
logical grouping. I believe this can help to make sure that the CAPWAP =
protocol meets the objectives of logical groups and traffic separation =
in a more complete manner.
=20
Appreciate any comments.
=20
Thanks and regards
Richard Gwee


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first Institute of Higher Learning to fully =
adopt the Problem-Based Learning approach in Singapore, continues to =
strive towards best practices and maintain excellence in service =
standards with the following certifications: Singapore Quality Class =
(SQC) certification, People Developer Standards and QEHS standards (ISO =
9001, 14001 and OHSAS 18001 certifications).
---------------------------------------------------------------------
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Subject: RE: [Capwap] CAPWAP protocol issues
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Thread-Topic: [Capwap] CAPWAP protocol issues
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From: "Pat Calhoun (pacalhou)" <pcalhoun@cisco.com>
To: "Richard Gwee" <richard_gwee@rp.sg>, <capwap@frascone.com>
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That is a fair point. I agree with your assessment that a CAPWAP
protocol must fully describe how logical groups are provided, down to
how user data is mapped on the wire. The LWAPP protocol has two options,
depending upon the architecture:

1. Split MAC (User data tunneled to AC). In this mode, how the mapping
occurs between the SSID and the VLAN is implementation specific since
there is no additional messaging that is required between the AC and the
WTP.
2. Local MAC (User data not tunneled to AC). In this mode, the AC sends
the VLAN for a given user to the WTP. The WTP then assigns the station
to the VLAN ensuring that the logical grouping is observed both over the
air and over the wire. This is discussed in section 11.1.2.

I hope this helps,

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: capwap-admin@frascone.com=20
> [mailto:capwap-admin@frascone.com] On Behalf Of Richard Gwee
> Sent: Tuesday, July 26, 2005 5:18 AM
> To: capwap@frascone.com
> Subject: [Capwap] CAPWAP protocol issues
>=20
> Hi,
> =20
> I have these few observations and like to seek some clarifications.
> =20
> As we know, CAPWAP has the following objectives of logical=20
> groups (sec 5.1.1) and support for traffic separation (sec=20
> 5.1.2). The logical groups objective state that the CAPWAP=20
> protocol must be capable of managing logical grouping of WTPs=20
> while the support for traffic separation objective require=20
> that control messages does not involve any form of=20
> combination with data traffic. However, i notice that some of=20
> the proposed protocols support logical grouping in a=20
> incomplete manner. For example, LWAPP in 802.11 networks=20
> provides logical grouping through 802.11 binding messages=20
> which is only on the wireless domain. I think the CAPWAP=20
> protocol should cover both wired and wireless domains in its=20
> logical grouping. I believe this can help to make sure that=20
> the CAPWAP protocol meets the objectives of logical groups=20
> and traffic separation in a more complete manner.
> =20
> Appreciate any comments.
> =20
> Thanks and regards
> Richard Gwee
>=20
>=20
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road,=20
> Singapore 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
>=20
> Republic Polytechnic, the first Institute of Higher Learning=20
> to fully adopt the Problem-Based Learning approach in=20
> Singapore, continues to strive towards best practices and=20
> maintain excellence in service standards with the following=20
> certifications: Singapore Quality Class (SQC) certification,=20
> People Developer Standards and QEHS standards (ISO 9001,=20
> 14001 and OHSAS 18001 certifications).
> ---------------------------------------------------------------------
> CONFIDENTIALITY CAUTION: This message is intended only for=20
> the use of the individual or entity to whom it is addressed=20
> and contains information that is privileged and confidential.=20
> If you, the reader of this message, are not the intended=20
> recipient, you should not disseminate, distribute or copy=20
> this communication. If you have received this communication=20
> in error, please notify us immediately by return email and=20
> delete the original message. Thank you.
>=20
> _______________________________________________
> Capwap mailing list
> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
>=20
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Subject: [Capwap] WGLC has ended for draft-ietf-capwap-objectives-03.txt
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The last call on draft "Objectives for Control and Provisioning of =
Wireless Access Points", =
http://www.ietf.org/internet-drafts/draft-ietf-capwap-objectives-03.txt =
closed last week (7/22/05). As we did not receive any comments on this =
call, we will be forarding this to the IESG after IETF 63 for =
consideration as an informational RFC.

Thanks,
WG Chairs

>  -----Original Message-----
> From: 	Gellert Dorothy (Nokia-ES/MtView) =20
> Sent:	Thursday, July 07, 2005 2:25 PM
> To:	'capwap@frascone.com'
> Cc:	Mani Mahalingam (E-mail); Bert Wijnen (E-mail); Kessens David =
(Nokia-NET/MtView); Gellert Dorothy (Nokia-ES/MtView)
> Subject:	CAPWAP WGLC on draft-ietf-capwap-objectives-03.txt
>=20
>=20
> This is the announcement of the CAPWAP WG Last Call for comments on =
the draft "Objectives for Control and Provisioning of Wireless Access =
Points" prior to sending this draft to the IESG.  The draft is available =
on the IETF archive at:
> =
http://www.ietf.org/internet-drafts/draft-ietf-capwap-objectives-03.txt
>=20
> The CAPWAP WG Last Call will end on Friday, July 22, 2005.   Please =
review and provide comments to the CAPWAP WG mailing list by then.
>=20
> Best Regards,
> WG Chairs
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From capwap-admin@frascone.com Tue Jul 26 19:59:12 2005
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Thread-Topic: IPR Disclosures related to CAPWAP Protocols
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From: "Darren Loher" <DLoher@rovingplanet.com>
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Subject: [Capwap] IPR Disclosures related to CAPWAP Protocols
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Are there intellectual property rights disclosures for all the CAPWAP
protocols?   So far I have only found reference to Airespace's statement
regarding LWAPP at:  
http://www.ietf.org/ietf/IPR/airespace-ipr-draft-calhoun-seamoby-lwapp.txt

According to https://datatracker.ietf.org/public/ipr_search.cgi there are no
IPR disclosures if one searches by the working group name "CAPWAP".  (the
search functions are notoriously unreliable)

-Darren

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From capwap-admin@frascone.com Wed Jul 27 03:31:09 2005
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Subject: RE: [Capwap] CAPWAP protocol issues
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Thread-Topic: [Capwap] CAPWAP protocol issues
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From: "Richard Gwee" <richard_gwee@rp.sg>
To: "Pat Calhoun (pacalhou)" <pcalhoun@cisco.com>, <capwap@frascone.com>
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Hi,
Thanks for the swift reply. It is great that LWAPP fulfills the logical=20
group objective completely. It will be good if any proposed CAPWAP =
protocols=20
can fulfill this objective in a similar manner. For the split-MAC=20
architecture, i understand from you that the mapping of the SSID and =
VLAN is=20
implementation specific. I thought that it will be better to actually=20
provide a general form of framework in this aspect for more information. =

=20
Regards
Richard Gwee

________________________________

From: Pat Calhoun (pacalhou) [mailto:pcalhoun@cisco.com]
Sent: Tue 7/26/2005 11:55 PM
To: Richard Gwee; capwap@frascone.com
Subject: RE: [Capwap] CAPWAP protocol issues



That is a fair point. I agree with your assessment that a CAPWAP
protocol must fully describe how logical groups are provided, down to
how user data is mapped on the wire. The LWAPP protocol has two options,
depending upon the architecture:

1. Split MAC (User data tunneled to AC). In this mode, how the mapping
occurs between the SSID and the VLAN is implementation specific since
there is no additional messaging that is required between the AC and the
WTP.
2. Local MAC (User data not tunneled to AC). In this mode, the AC sends
the VLAN for a given user to the WTP. The WTP then assigns the station
to the VLAN ensuring that the logical grouping is observed both over the
air and over the wire. This is discussed in section 11.1.2.

I hope this helps,

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems



> -----Original Message-----
> From: capwap-admin@frascone.com
> [mailto:capwap-admin@frascone.com] On Behalf Of Richard Gwee
> Sent: Tuesday, July 26, 2005 5:18 AM
> To: capwap@frascone.com
> Subject: [Capwap] CAPWAP protocol issues
>
> Hi,
>=20
> I have these few observations and like to seek some clarifications.
>=20
> As we know, CAPWAP has the following objectives of logical
> groups (sec 5.1.1) and support for traffic separation (sec
> 5.1.2). The logical groups objective state that the CAPWAP
> protocol must be capable of managing logical grouping of WTPs
> while the support for traffic separation objective require
> that control messages does not involve any form of
> combination with data traffic. However, i notice that some of
> the proposed protocols support logical grouping in a
> incomplete manner. For example, LWAPP in 802.11 networks
> provides logical grouping through 802.11 binding messages
> which is only on the wireless domain. I think the CAPWAP
> protocol should cover both wired and wireless domains in its
> logical grouping. I believe this can help to make sure that
> the CAPWAP protocol meets the objectives of logical groups
> and traffic separation in a more complete manner.
>=20
> Appreciate any comments.
>=20
> Thanks and regards
> Richard Gwee
>
>
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road,
> Singapore 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
>
> Republic Polytechnic, the first Institute of Higher Learning
> to fully adopt the Problem-Based Learning approach in
> Singapore, continues to strive towards best practices and
> maintain excellence in service standards with the following
> certifications: Singapore Quality Class (SQC) certification,
> People Developer Standards and QEHS standards (ISO 9001,
> 14001 and OHSAS 18001 certifications).
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From: "Richard Gwee" <richard_gwee@rp.sg>
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Subject: [Capwap] Some points on CAPWAP protocol
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Hi,
=20
I have a few points that i will like to make.
=20
I notice from some proposed CAPWAP protocols that they support state =
state information collection but does not explicitly state what kind of =
information is monitored or exchanged and how to make use of it. I felt =
that the CAPWAP proposal should at least explain such procedures so that =
it will be easier to gauge how the proposal can perform effectively.
=20
Another point is that given that the CAPWAP protocol supports a large =
network, it is possible that a situation can occur in which the state =
information or the number of control packets can be huge and incur high =
costs in term of processing delay and memory usage. Furthermore, a high =
control overhead can lead to a drop in available bandwidth that can =
impair network performance especially in the wireless domain. Thus it is =
also important that the operation of the CAPWAP protocol should be kept =
as simpler as possible.
=20
Appreciate any comments to my above observations.
=20
Thanks and regards
Richard Gwee


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first Institute of Higher Learning to fully =
adopt the Problem-Based Learning approach in Singapore, continues to =
strive towards best practices and maintain excellence in service =
standards with the following certifications: Singapore Quality Class =
(SQC) certification, People Developer Standards and QEHS standards (ISO =
9001, 14001 and OHSAS 18001 certifications).
---------------------------------------------------------------------
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information that is privileged and confidential. If you, the reader of =
this message, are not the intended recipient, you should not =
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From: "Pat Calhoun (pacalhou)" <pcalhoun@cisco.com>
To: "Puneet Agarwal" <pagarwal@broadcom.com>, <capwap@frascone.com>
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See below

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: Puneet Agarwal [mailto:pagarwal@broadcom.com]=20
> Sent: Monday, July 25, 2005 4:34 PM
> To: Pat Calhoun (pacalhou); capwap@frascone.com
> Subject: RE: question on LWAPP-03 draft
>=20
> Hi Pat,
>=20
> Thanks for your clarifications. A few follow-on comments and=20
> a couple of new questions.
>=20
> (a) I completely agree with you that with the introduction of=20
> HCCA, it makes sense to have the .11 fragmentation and hence=20
> .11i encryption at the WTP. By the symmetry argument, I=20
> presume that you are also implying that .11i decryption and=20
> .11 defragmentation should also happen at the WTP (for LWAPP=20
> Split MAC).
<PRC> That is correct. Note that LWAPP supports the AC providing this
feature, with the restriction that HCCA cannot be used (and this is not
an LWAPP limitation, this is a technology limitation for any protocol
that encrypts in the AC).

>=20
> (b) Thanks for clarifying this. As a corollary, it would be=20
> great if you could also state what .11 header fields MUST be=20
> valid when sending a .11 frame (in LWAPP) from the AC to the=20
> WTP. I assume that, at the minimum, the Address1, Address2=20
> and Address3 fields MUST be valid. If this is a .11e enabled=20
> client, then the TID field MUST be valid. However what is not=20
> clear is that if the client needs .11i encryption, is the AC=20
> required to attach the .11i dummy CCMP header as well as a=20
> dummy MIC to the .11 data frame before sending it to the WTP=20
> (in a LWAPP tunnel)?
<PRC> Good point. Today, all of the address and 802.11e TID fields must
be present,
and include the proper values. However, the encryption pad is not
present if encryption
is done in the WTP. I will update the draft to make this explicit.

>=20
> (c) While LWAPP tunneling, an AC implementation may decide to=20
> fragment at the
> .11 level to get over network MTU limits and avoid LWAPP/IP=20
> fragmentation (it seems to be legal in LWAPP though there is=20
> no explicit mention in the spec either allowing/disallowing=20
> it). In this case, the WTP implementations will require valid=20
> values in the "Sequence number" and "Fragment number" for=20
> correct LWAPP reassembly - though these may be rewritten by=20
> the WTP before transmission to the Client. Hence it would be=20
> great if you could specify which .11 fields MUST be valid and=20
> which fields are ignored by the WTP for data packets received=20
> by the WTP from the AC.
<PRC> hmm.... We don't assume this because we cannot control the client
- hence you have this problem in traffic from the station. I believe the
current model the protocol provides is more reliable.

>=20
> (d) For packets from Client to the network, the WTP will=20
> reassemble the fragmented .11 frames. In order to send the=20
> MSDU to the AC, the WTP would need to create a new .11 header=20
> (before encapsulation the frame into a LWAPP
> tunnel) but without fragments (ie .11 Header.More_Frag =3D 0).=20
> Is this a correct assumption?
> Similarly, if the Client's frame came in with .11i=20
> encryption, then will the WTP send the MSDU to the AC with a=20
> dummy .11i CCMP header/MIC or will it remove the .11i CCMP=20
> header. Hence it would be great if you can clarify which
> .11 header fields must be valid when .11 data frames are sent=20
> from WTP to AC (in LWAPP).
<PRC> Correct, I believe this goes back to your point #2 (above), which
we will address in the next version of the draft.
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Subject: RE: [Capwap] CAPWAP protocol issues
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Thread-Topic: [Capwap] CAPWAP protocol issues
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From: "Pat Calhoun (pacalhou)" <pcalhoun@cisco.com>
To: "Richard Gwee" <richard_gwee@rp.sg>, <capwap@frascone.com>
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I understand your point in terms of providing some implementation
direction, but my belief is that system behavior is really
implementation specific and allows products to differentiate themselves.
Further, RFC 3580 (ftp://ftp.rfc-editor.org/in-notes/rfc3580.txt) how
the tunnel attribute (section 3.31) is used to map the user to a
specific VLAN.=20

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: Richard Gwee [mailto:richard_gwee@rp.sg]=20
> Sent: Wednesday, July 27, 2005 12:27 AM
> To: Pat Calhoun (pacalhou); capwap@frascone.com
> Subject: RE: [Capwap] CAPWAP protocol issues
>=20
> Hi,
> Thanks for the swift reply. It is great that LWAPP fulfills=20
> the logical group objective completely. It will be good if=20
> any proposed CAPWAP protocols can fulfill this objective in a=20
> similar manner. For the split-MAC architecture, i understand=20
> from you that the mapping of the SSID and VLAN is=20
> implementation specific. I thought that it will be better to=20
> actually provide a general form of framework in this aspect=20
> for more information.=20
> =20
> Regards
> Richard Gwee
>=20
> ________________________________
>=20
> From: Pat Calhoun (pacalhou) [mailto:pcalhoun@cisco.com]
> Sent: Tue 7/26/2005 11:55 PM
> To: Richard Gwee; capwap@frascone.com
> Subject: RE: [Capwap] CAPWAP protocol issues
>=20
>=20
>=20
> That is a fair point. I agree with your assessment that a=20
> CAPWAP protocol must fully describe how logical groups are=20
> provided, down to how user data is mapped on the wire. The=20
> LWAPP protocol has two options, depending upon the architecture:
>=20
> 1. Split MAC (User data tunneled to AC). In this mode, how=20
> the mapping occurs between the SSID and the VLAN is=20
> implementation specific since there is no additional=20
> messaging that is required between the AC and the WTP.
> 2. Local MAC (User data not tunneled to AC). In this mode,=20
> the AC sends the VLAN for a given user to the WTP. The WTP=20
> then assigns the station to the VLAN ensuring that the=20
> logical grouping is observed both over the air and over the=20
> wire. This is discussed in section 11.1.2.
>=20
> I hope this helps,
>=20
> Pat Calhoun
> CTO, Wireless Networking Business Unit
> Cisco Systems
>=20
>=20
>=20
> > -----Original Message-----
> > From: capwap-admin@frascone.com
> > [mailto:capwap-admin@frascone.com] On Behalf Of Richard Gwee
> > Sent: Tuesday, July 26, 2005 5:18 AM
> > To: capwap@frascone.com
> > Subject: [Capwap] CAPWAP protocol issues
> >
> > Hi,
> >=20
> > I have these few observations and like to seek some clarifications.
> >=20
> > As we know, CAPWAP has the following objectives of logical=20
> groups (sec=20
> > 5.1.1) and support for traffic separation (sec 5.1.2). The logical=20
> > groups objective state that the CAPWAP protocol must be capable of=20
> > managing logical grouping of WTPs while the support for traffic=20
> > separation objective require that control messages does not involve=20
> > any form of combination with data traffic. However, i=20
> notice that some=20
> > of the proposed protocols support logical grouping in a incomplete=20
> > manner. For example, LWAPP in 802.11 networks provides logical=20
> > grouping through 802.11 binding messages which is only on=20
> the wireless=20
> > domain. I think the CAPWAP protocol should cover both wired and=20
> > wireless domains in its logical grouping. I believe this=20
> can help to=20
> > make sure that the CAPWAP protocol meets the objectives of logical=20
> > groups and traffic separation in a more complete manner.
> >=20
> > Appreciate any comments.
> >=20
> > Thanks and regards
> > Richard Gwee
> >
> >
> > Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore=20
> > 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
> >
> > Republic Polytechnic, the first Institute of Higher=20
> Learning to fully=20
> > adopt the Problem-Based Learning approach in Singapore,=20
> continues to=20
> > strive towards best practices and maintain excellence in service=20
> > standards with the following
> > certifications: Singapore Quality Class (SQC) certification, People=20
> > Developer Standards and QEHS standards (ISO 9001,
> > 14001 and OHSAS 18001 certifications).
> >=20
> ---------------------------------------------------------------------
> > CONFIDENTIALITY CAUTION: This message is intended only for=20
> the use of=20
> > the individual or entity to whom it is addressed and contains=20
> > information that is privileged and confidential.
> > If you, the reader of this message, are not the intended recipient,=20
> > you should not disseminate, distribute or copy this=20
> communication. If=20
> > you have received this communication in error, please notify us=20
> > immediately by return email and delete the original message. Thank=20
> > you.
> >
> > _______________________________________________
> > Capwap mailing list
> > Capwap@frascone.com
> > http://mail.frascone.com/mailman/listinfo/capwap
> >
>=20
_______________________________________________
Capwap mailing list
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http://mail.frascone.com/mailman/listinfo/capwap



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Subject: RE: [Capwap] CAPWAP protocol issues
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Hi Calhoun,
=20
Thanks for the clarification. I appreciate your reply.
=20
Regards
Richard Gwee

________________________________

From: Pat Calhoun (pacalhou) [mailto:pcalhoun@cisco.com]
Sent: Wed 7/27/2005 11:18 PM
To: Richard Gwee; capwap@frascone.com
Subject: RE: [Capwap] CAPWAP protocol issues



I understand your point in terms of providing some implementation
direction, but my belief is that system behavior is really
implementation specific and allows products to differentiate themselves.
Further, RFC 3580 (ftp://ftp.rfc-editor.org/in-notes/rfc3580.txt) how
the tunnel attribute (section 3.31) is used to map the user to a
specific VLAN.

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems



> -----Original Message-----
> From: Richard Gwee [mailto:richard_gwee@rp.sg]
> Sent: Wednesday, July 27, 2005 12:27 AM
> To: Pat Calhoun (pacalhou); capwap@frascone.com
> Subject: RE: [Capwap] CAPWAP protocol issues
>
> Hi,
> Thanks for the swift reply. It is great that LWAPP fulfills
> the logical group objective completely. It will be good if
> any proposed CAPWAP protocols can fulfill this objective in a
> similar manner. For the split-MAC architecture, i understand
> from you that the mapping of the SSID and VLAN is
> implementation specific. I thought that it will be better to
> actually provide a general form of framework in this aspect
> for more information.
>=20
> Regards
> Richard Gwee
>
> ________________________________
>
> From: Pat Calhoun (pacalhou) [mailto:pcalhoun@cisco.com]
> Sent: Tue 7/26/2005 11:55 PM
> To: Richard Gwee; capwap@frascone.com
> Subject: RE: [Capwap] CAPWAP protocol issues
>
>
>
> That is a fair point. I agree with your assessment that a
> CAPWAP protocol must fully describe how logical groups are
> provided, down to how user data is mapped on the wire. The
> LWAPP protocol has two options, depending upon the architecture:
>
> 1. Split MAC (User data tunneled to AC). In this mode, how
> the mapping occurs between the SSID and the VLAN is
> implementation specific since there is no additional
> messaging that is required between the AC and the WTP.
> 2. Local MAC (User data not tunneled to AC). In this mode,
> the AC sends the VLAN for a given user to the WTP. The WTP
> then assigns the station to the VLAN ensuring that the
> logical grouping is observed both over the air and over the
> wire. This is discussed in section 11.1.2.
>
> I hope this helps,
>
> Pat Calhoun
> CTO, Wireless Networking Business Unit
> Cisco Systems
>
>
>
> > -----Original Message-----
> > From: capwap-admin@frascone.com
> > [mailto:capwap-admin@frascone.com] On Behalf Of Richard Gwee
> > Sent: Tuesday, July 26, 2005 5:18 AM
> > To: capwap@frascone.com
> > Subject: [Capwap] CAPWAP protocol issues
> >
> > Hi,
> >
> > I have these few observations and like to seek some clarifications.
> >
> > As we know, CAPWAP has the following objectives of logical
> groups (sec
> > 5.1.1) and support for traffic separation (sec 5.1.2). The logical
> > groups objective state that the CAPWAP protocol must be capable of
> > managing logical grouping of WTPs while the support for traffic
> > separation objective require that control messages does not involve
> > any form of combination with data traffic. However, i
> notice that some
> > of the proposed protocols support logical grouping in a incomplete
> > manner. For example, LWAPP in 802.11 networks provides logical
> > grouping through 802.11 binding messages which is only on
> the wireless
> > domain. I think the CAPWAP protocol should cover both wired and
> > wireless domains in its logical grouping. I believe this
> can help to
> > make sure that the CAPWAP protocol meets the objectives of logical
> > groups and traffic separation in a more complete manner.
> >
> > Appreciate any comments.
> >
> > Thanks and regards
> > Richard Gwee
> >
> >
> > Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore
> > 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
> >
> > Republic Polytechnic, the first Institute of Higher
> Learning to fully
> > adopt the Problem-Based Learning approach in Singapore,
> continues to
> > strive towards best practices and maintain excellence in service
> > standards with the following
> > certifications: Singapore Quality Class (SQC) certification, People
> > Developer Standards and QEHS standards (ISO 9001,
> > 14001 and OHSAS 18001 certifications).
> >
> ---------------------------------------------------------------------
> > CONFIDENTIALITY CAUTION: This message is intended only for
> the use of
> > the individual or entity to whom it is addressed and contains
> > information that is privileged and confidential.
> > If you, the reader of this message, are not the intended recipient,
> > you should not disseminate, distribute or copy this
> communication. If
> > you have received this communication in error, please notify us
> > immediately by return email and delete the original message. Thank
> > you.
> >
> > _______________________________________________
> > Capwap mailing list
> > Capwap@frascone.com
> > http://mail.frascone.com/mailman/listinfo/capwap
> >
>


_______________________________________________
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From capwap-admin@frascone.com Thu Jul 28 11:00:12 2005
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thread-index: AcWTgmGQ8/RHoKmfRfuU/e3tKq3CGg==
From: "Richard Gwee" <richard_gwee@rp.sg>
To: <capwap@frascone.com>
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Subject: [Capwap] Questions on the 802.11i and Interoperability for CAPWAP protocol
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Hi,
=20
I have a few questions to make.
=20
For the 802.11i considerations objective, we have to take into account =
an architecture in which the AC provides authentication function while =
the WTP provides the encryption function. I believe such architecture is =
highly likely and need to be considered seriously. However, in some of =
the proposed protocols, i notice that such designs are not discussed =
thoroughly. Most protocols discuss on how the AC and WTP can perform =
security updates. In my opinion, the way on how the CAPWAP protocol can =
best perform under this kind of architecture is rather important. Is =
this aspect supposed to be implementation specific or can i be =
enlightened on how the CAPWAP protocol can be used effectively on such =
an architecture?
=20
For the interoperability objective, most protocols does mention support =
for this objective in their specifications but i cannot figure out how =
is this objective fulfilled. In the event that there is two types of WTP =
i.e. local MAC and split MAC WTPs linked to a single AC, how will the AC =
manage the traffic from these two types of WTPs? Ideally, the AC should =
be able to handle traffic from both types of WTPs without much hassle.
=20
Appreciate any reply and comments.
=20
Thanks and regards
Richard Gwee
=20
=20


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first Institute of Higher Learning to fully =
adopt the Problem-Based Learning approach in Singapore, continues to =
strive towards best practices and maintain excellence in service =
standards with the following certifications: Singapore Quality Class =
(SQC) certification, People Developer Standards and QEHS standards (ISO =
9001, 14001 and OHSAS 18001 certifications).
---------------------------------------------------------------------
CONFIDENTIALITY CAUTION: This message is intended only for the use of =
the individual or entity to whom it is addressed and contains =
information that is privileged and confidential. If you, the reader of =
this message, are not the intended recipient, you should not =
disseminate, distribute or copy this communication. If you have received =
this communication in error, please notify us immediately by return =
email and delete the original message. Thank you.

_______________________________________________
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From capwap-admin@frascone.com Thu Jul 28 12:01:18 2005
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Subject: RE: [Capwap] Questions on the 802.11i and Interoperability for CAPWAP protocol
Message-ID: <4FF84B0BC277FF45AA27FE969DD956A2711728@xmb-sjc-235.amer.cisco.com>
Thread-Topic: [Capwap] Questions on the 802.11i and Interoperability for CAPWAP protocol
Thread-Index: AcWTgmGQ8/RHoKmfRfuU/e3tKq3CGgACYY3w
From: "Pat Calhoun (pacalhou)" <pcalhoun@cisco.com>
To: "Richard Gwee" <richard_gwee@rp.sg>, <capwap@frascone.com>
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Richard,

Once more a good question. The issue you raised is not only required for
interoperability, but as correctly pointed out by Charles Clancy in his
LWAPP security review, failure to mention proper protocol behavior can
lead to system vulnerabilities and possible DoS attacks.=20

LWAPP has addressed this issue in section 11.2, which does into detail
on how the AC uses the LWAPP protocol in light of an 802.11i roaming
event. The process describes addresses the security issue raised during
the review process, and is sufficient to ensure interoperability.

Note that the introduction of 802.11r will significantly simplify how
secure roaming works, but that standard isn't expected for at least
another year.=20

To address your second question, how does roaming from a Local to Split
MAC WTP occur is an interesting question, and is one that only works
with specific deployment constraints. If a user begins his session on a
Split MAC WTP, he/she will be assigned an IP address from one of the
subnets supported by the AC. However, if a roam event occurs to a Local
MAC WTP, which for me means no tunneling of user data to the AC, then
that WTP would also have to have access to the same VLANs as the ones on
the AC. So this scenario works as long as the AC and the WTP have access
to the same user VLAN/subnets.

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: capwap-admin@frascone.com=20
> [mailto:capwap-admin@frascone.com] On Behalf Of Richard Gwee
> Sent: Thursday, July 28, 2005 8:00 AM
> To: capwap@frascone.com
> Subject: [Capwap] Questions on the 802.11i and=20
> Interoperability for CAPWAP protocol
>=20
> Hi,
> =20
> I have a few questions to make.
> =20
> For the 802.11i considerations objective, we have to take=20
> into account an architecture in which the AC provides=20
> authentication function while the WTP provides the encryption=20
> function. I believe such architecture is highly likely and=20
> need to be considered seriously. However, in some of the=20
> proposed protocols, i notice that such designs are not=20
> discussed thoroughly. Most protocols discuss on how the AC=20
> and WTP can perform security updates. In my opinion, the way=20
> on how the CAPWAP protocol can best perform under this kind=20
> of architecture is rather important. Is this aspect supposed=20
> to be implementation specific or can i be enlightened on how=20
> the CAPWAP protocol can be used effectively on such an architecture?
> =20
> For the interoperability objective, most protocols does=20
> mention support for this objective in their specifications=20
> but i cannot figure out how is this objective fulfilled. In=20
> the event that there is two types of WTP i.e. local MAC and=20
> split MAC WTPs linked to a single AC, how will the AC manage=20
> the traffic from these two types of WTPs? Ideally, the AC=20
> should be able to handle traffic from both types of WTPs=20
> without much hassle.
> =20
> Appreciate any reply and comments.
> =20
> Thanks and regards
> Richard Gwee
> =20
> =20
>=20
>=20
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road,=20
> Singapore 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
>=20
> Republic Polytechnic, the first Institute of Higher Learning=20
> to fully adopt the Problem-Based Learning approach in=20
> Singapore, continues to strive towards best practices and=20
> maintain excellence in service standards with the following=20
> certifications: Singapore Quality Class (SQC) certification,=20
> People Developer Standards and QEHS standards (ISO 9001,=20
> 14001 and OHSAS 18001 certifications).
> ---------------------------------------------------------------------
> CONFIDENTIALITY CAUTION: This message is intended only for=20
> the use of the individual or entity to whom it is addressed=20
> and contains information that is privileged and confidential.=20
> If you, the reader of this message, are not the intended=20
> recipient, you should not disseminate, distribute or copy=20
> this communication. If you have received this communication=20
> in error, please notify us immediately by return email and=20
> delete the original message. Thank you.
>=20
> _______________________________________________
> Capwap mailing list
> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
>=20
_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap



From capwap-admin@frascone.com Thu Jul 28 15:16:13 2005
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Subject: RE: [Capwap] Questions on the 802.11i and Interoperability for CAPWAP protocol
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Thread-Topic: Questions on the 802.11i and Interoperability for CAPWAP protocol
Thread-Index: AcWTgmGQ8/RHoKmfRfuU/e3tKq3CGgAJJorA
From: <Dorothy.Gellert@nokia.com>
To: <richard_gwee@rp.sg>, <capwap@frascone.com>
Cc: <mmani@avaya.com>
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Hi Richard-

Thanks for the comments on the protocols and requirements.  We just =
finished an WG Last Call on the Objectives draft, and although some of =
your comments are addressed there at a high level, I thought I'd give =
you an opportunity to expand on the objectives if you like, espcially =
since we've haven't received any comments during WGLC so far, and I =
can't submit the Objectives draft to the IESG until after the IETF 63 =
meeting.

Additionally, the evaluation team will report on their findings and =
release their draft at the IETF meeting.  You can also raise these =
points with the evaluation team, during the meeting if you are =
attending, or on the WG list when the WG has a chance to comment.  They =
have done an excellent job so far.

As we finalize the evaluation process and protocol, the WG will have an =
opportunity to further refine the protocol to address comments such as =
yours.

Thanks,
Dorothy
=20

-----Original Message-----
From: capwap-admin@frascone.com [mailto:capwap-admin@frascone.com]On
Behalf Of ext Richard Gwee
Sent: Thursday, July 28, 2005 8:00 AM
To: capwap@frascone.com
Subject: [Capwap] Questions on the 802.11i and Interoperability for
CAPWAP protocol


Hi,
=20
I have a few questions to make.
=20
For the 802.11i considerations objective, we have to take into account =
an architecture in which the AC provides authentication function while =
the WTP provides the encryption function. I believe such architecture is =
highly likely and need to be considered seriously. However, in some of =
the proposed protocols, i notice that such designs are not discussed =
thoroughly. Most protocols discuss on how the AC and WTP can perform =
security updates. In my opinion, the way on how the CAPWAP protocol can =
best perform under this kind of architecture is rather important. Is =
this aspect supposed to be implementation specific or can i be =
enlightened on how the CAPWAP protocol can be used effectively on such =
an architecture?
=20
For the interoperability objective, most protocols does mention support =
for this objective in their specifications but i cannot figure out how =
is this objective fulfilled. In the event that there is two types of WTP =
i.e. local MAC and split MAC WTPs linked to a single AC, how will the AC =
manage the traffic from these two types of WTPs? Ideally, the AC should =
be able to handle traffic from both types of WTPs without much hassle.
=20
Appreciate any reply and comments.
=20
Thanks and regards
Richard Gwee
=20
=20


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922 =
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first Institute of Higher Learning to fully =
adopt the Problem-Based Learning approach in Singapore, continues to =
strive towards best practices and maintain excellence in service =
standards with the following certifications: Singapore Quality Class =
(SQC) certification, People Developer Standards and QEHS standards (ISO =
9001, 14001 and OHSAS 18001 certifications).
---------------------------------------------------------------------
CONFIDENTIALITY CAUTION: This message is intended only for the use of =
the individual or entity to whom it is addressed and contains =
information that is privileged and confidential. If you, the reader of =
this message, are not the intended recipient, you should not =
disseminate, distribute or copy this communication. If you have received =
this communication in error, please notify us immediately by return =
email and delete the original message. Thank you.

_______________________________________________
Capwap mailing list
Capwap@frascone.com
http://mail.frascone.com/mailman/listinfo/capwap
_______________________________________________
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Capwap@frascone.com
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Subject: RE: [Capwap] Question on SLAPP discover request payload
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Thread-Topic: [Capwap] Question on SLAPP discover request payload
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From: <partha@arubanetworks.com>
To: <richard_gwee@rp.sg>, <capwap@frascone.com>
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Richard,

I apologize for the delay in responding to your question.=20

One of the requirements in the CAPWAP objectives is a firmware download
trigger. In order to determine whether an update is required and to
select the correct firmware image for a particular WTP, it is good to
know its hardware version in addition to a vendor ID and its current
software version.=20

Thanks
partha

-----Original Message-----
From: capwap-admin@frascone.com [mailto:capwap-admin@frascone.com] On
Behalf Of Richard Gwee
Sent: Tuesday, July 19, 2005 7:04 PM
To: capwap@frascone.com
Subject: [Capwap] Question on SLAPP discover request payload

Hi,
=20
I have a question on the SLAPP discover request payload. In the draft,
the SLAPP discover request packet contains HW version information. What
is the rationale for this HW version to be present and how can this HW
version information actually benefit the CAPWAP protocol? If the WTP and
AC are from different vendors, do they need to recognise each other's HW
version? From my perspective, i thought that this seem to suggest a form
of dependency between the protocol performance and hardware.
=20
Appreciate any enlightenments.
=20
Thanks and regards
Richard Gwee


Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road, Singapore 248922
. Website: www.rp.sg . Fax: +65 6415-1310 .

Republic Polytechnic, the first institute of higher learning to fully
adopt Problem-Based Learning in Singapore, has scored another first by
achieving the People Developer Standards and QEHS standards (ISO 9001,
14001 and OHSAS 18001 certifications) within the first year of our
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From capwap-admin@frascone.com Fri Jul 29 14:14:12 2005
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Subject: RE: [Capwap] Questions on the 802.11i and Interoperability for CAPWAP protocol
Message-ID: <4FF84B0BC277FF45AA27FE969DD956A2711AF7@xmb-sjc-235.amer.cisco.com>
Thread-Topic: [Capwap] Questions on the 802.11i and Interoperability for CAPWAP protocol
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From: "Pat Calhoun (pacalhou)" <pcalhoun@cisco.com>
To: <Dorothy.Gellert@nokia.com>, <richard_gwee@rp.sg>, <capwap@frascone.com>
Cc: <mmani@avaya.com>
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I believe that Richard made a really good point that the Logical groups
objective is not sufficient.=20

The current Protocol Requirements text reads:

"The CAPWAP protocol MUST be capable of controlling and managingphysical
WTPs in terms of logical groups including BSSID-based groups."

I would re-phrase to:

"The CAPWAP protocol MUST be capable of controlling and managing
physical WTPs in terms of logical groups including BSSID-based groups.
For non-tunneled mode, the protocols MUST also provide the provisions to
configure the associated VLAN (or subnet) which is to be used by the WTP
in bridging traffic for the logical group."

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

=20

> -----Original Message-----
> From: capwap-admin@frascone.com=20
> [mailto:capwap-admin@frascone.com] On Behalf Of=20
> Dorothy.Gellert@nokia.com
> Sent: Thursday, July 28, 2005 12:14 PM
> To: richard_gwee@rp.sg; capwap@frascone.com
> Cc: mmani@avaya.com
> Subject: RE: [Capwap] Questions on the 802.11i and=20
> Interoperability for CAPWAP protocol
>=20
> Hi Richard-
>=20
> Thanks for the comments on the protocols and requirements. =20
> We just finished an WG Last Call on the Objectives draft, and=20
> although some of your comments are addressed there at a high=20
> level, I thought I'd give you an opportunity to expand on the=20
> objectives if you like, espcially since we've haven't=20
> received any comments during WGLC so far, and I can't submit=20
> the Objectives draft to the IESG until after the IETF 63 meeting.
>=20
> Additionally, the evaluation team will report on their=20
> findings and release their draft at the IETF meeting.  You=20
> can also raise these points with the evaluation team, during=20
> the meeting if you are attending, or on the WG list when the=20
> WG has a chance to comment.  They have done an excellent job so far.
>=20
> As we finalize the evaluation process and protocol, the WG=20
> will have an opportunity to further refine the protocol to=20
> address comments such as yours.
>=20
> Thanks,
> Dorothy
> =20
>=20
> -----Original Message-----
> From: capwap-admin@frascone.com [mailto:capwap-admin@frascone.com]On
> Behalf Of ext Richard Gwee
> Sent: Thursday, July 28, 2005 8:00 AM
> To: capwap@frascone.com
> Subject: [Capwap] Questions on the 802.11i and=20
> Interoperability for CAPWAP protocol
>=20
>=20
> Hi,
> =20
> I have a few questions to make.
> =20
> For the 802.11i considerations objective, we have to take=20
> into account an architecture in which the AC provides=20
> authentication function while the WTP provides the encryption=20
> function. I believe such architecture is highly likely and=20
> need to be considered seriously. However, in some of the=20
> proposed protocols, i notice that such designs are not=20
> discussed thoroughly. Most protocols discuss on how the AC=20
> and WTP can perform security updates. In my opinion, the way=20
> on how the CAPWAP protocol can best perform under this kind=20
> of architecture is rather important. Is this aspect supposed=20
> to be implementation specific or can i be enlightened on how=20
> the CAPWAP protocol can be used effectively on such an architecture?
> =20
> For the interoperability objective, most protocols does=20
> mention support for this objective in their specifications=20
> but i cannot figure out how is this objective fulfilled. In=20
> the event that there is two types of WTP i.e. local MAC and=20
> split MAC WTPs linked to a single AC, how will the AC manage=20
> the traffic from these two types of WTPs? Ideally, the AC=20
> should be able to handle traffic from both types of WTPs=20
> without much hassle.
> =20
> Appreciate any reply and comments.
> =20
> Thanks and regards
> Richard Gwee
> =20
> =20
>=20
>=20
> Republic Polytechnic, Tanglin Campus, 1 Kay Siang Road,=20
> Singapore 248922 . Website: www.rp.sg . Fax: +65 6415-1310 .
>=20
> Republic Polytechnic, the first Institute of Higher Learning=20
> to fully adopt the Problem-Based Learning approach in=20
> Singapore, continues to strive towards best practices and=20
> maintain excellence in service standards with the following=20
> certifications: Singapore Quality Class (SQC) certification,=20
> People Developer Standards and QEHS standards (ISO 9001,=20
> 14001 and OHSAS 18001 certifications).
> ---------------------------------------------------------------------
> CONFIDENTIALITY CAUTION: This message is intended only for=20
> the use of the individual or entity to whom it is addressed=20
> and contains information that is privileged and confidential.=20
> If you, the reader of this message, are not the intended=20
> recipient, you should not disseminate, distribute or copy=20
> this communication. If you have received this communication=20
> in error, please notify us immediately by return email and=20
> delete the original message. Thank you.
>=20
> _______________________________________________
> Capwap mailing list
> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
> _______________________________________________
> Capwap mailing list
> Capwap@frascone.com
> http://mail.frascone.com/mailman/listinfo/capwap
>=20
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