Subject: RE: [Capwap] Issue 70: Section 5.2.2 Minor Editioral Comment

From: "Pat Calhoun (pacalhou)" <[email-masked]>
Date: Fri, 5 May 2006 06:58:59 -0700

I've created issue 118 to track this request.

Pat Calhoun
CTO, Wireless Networking Business Unit
Cisco Systems

> -----Original Message-----
> From: Puneet [mailto:[email-masked]] 
> Sent: Wednesday, May 03, 2006 10:27 AM
> To: Pat Calhoun (pacalhou)
> Cc: capwap
> Subject: Re: [Capwap] Issue 70: Section 5.2.2 Minor Editioral Comment
> 
> Can we change the hardware and software version numbers in 
> this message as well as the WTP model number in the board 
> data to be of variable length? I think there is already an 
> issue open for making all fixed-length CAPWAP IEs variable length.
> 
> The fixed lengths in the current protocol specification are 
> sometimes too short for existing implementations that now 
> want to support CAPWAP, and there does not seem to be a 
> reason to limit these to the numbers specified. We can either 
> use Radius style tag-length-values for all these IEs, or keep 
> the "tag" portion as-is (so that the order in which the 
> elements appear is enforced), but make the data part 
> "length-value" (ie a 1 byte length precedes the actual data)
> 
> thanks,
> Puneet
> 
> On 4/29/06, Pat Calhoun (pacalhou) <[email-masked]> wrote:
> > The issue stated that the following section refered to 
> radios instead 
> > of WTPs, which was a bug in the text. I have made the necessary 
> > correction and am closing the issue.
> >
> > 5.2.2.  AC Descriptor
> >
> >    The AC payload message element is used by the AC to 
> communicate it's
> >    current state.  The value contains the following fields.
> >
> >       0                   1                   2                   3
> >       0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 
> 7 8 9 0 1
> >      
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >      |   Reserved    |                 Hardware  Version 
> ...         |
> >      
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >      |     HW Ver    |                 Software  Version 
> ...         |
> >      
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >      |     SW Ver    |            Stations           |     
> Limit     |
> >      
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >      |     Limit     |          Active WTPs          |   
> Max WTPs    |
> >      
> +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >      |   Max WTPs    |    Security   |
> >      +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
> >
> >    Type:  6 for AC Descriptor
> >
> >    Length:  18
> >
> >    Reserved:  MUST be set to zero
> >
> >    Hardware Version:  The AC's hardware version number
> >
> >    Software Version:  The AC's Firmware version number
> >
> >    Stations:  The number of mobile stations currently 
> associated with
> >       the AC
> >
> >    Limit:  The maximum number of stations supported by the AC
> >
> >    Active WTPs:  The number of WTPs currently attached to the AC
> >
> >    Max WTPs:  The maximum number of WTPs supported by the AC
> >
> >    Security:  A 8 bit bit mask specifying the 
> authentication credential
> >       type supported by the AC.  The following values are 
> supported (see
> >       Section 10):
> >
> >       1 - X.509 Certificate Based
> >
> >       2 - Pre-Shared Secret
> >
> >
> >
> >
> > Pat Calhoun
> > CTO, Wireless Networking Business Unit Cisco Systems 
> > _________________________________________________________________
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