Subject: Re: [Capwap] RE: SLAPP and IETF DS Interoperability Requirement ( was: Re: [Cap wap] Comments on objectives draft)

From: Dan Harkins <[email-masked]>
Date: Mon, 02 May 2005 09:50:04 -0700

Bert,

  No I don't think that's the case. An image not booting correctly is a
special case of a failure to find an AC. If there are no (appropriate) ACs
to be found then the WTP keeps looking. This is not different than other
protocols, like LWAPP. If an LWAPP-capable WTP thought it found a good
LWAPP-capable AC but it failed to be properly provisioned it would start
searching for another AC.

  The WTP is completely controlled by the AC. Booting another image would
not solve a problem unless it also saved an old working config somewhere
and decided to not be a CAPWAP WTP anymore. That may be a nice vendor
addition but I don't think it's part of CAPWAP.

  Dan.

On Sat, 23 Apr 2005 12:36:34 +0200 you wrote
> So every WTP has to keep at least one backup of a working image
> and have logic to fall back to that if the just downloaded
> image fails to boot?
> 
> Bert
> 
> > -----Original Message-----
> > From: [email-masked] [mailto:[email-masked]]On
> > Behalf Of Dan Harkins
> > Sent: Saturday, April 23, 2005 08:11
> > To: Wijnen, Bert (Bert)
> > Cc: [email-masked]
> > Subject: Re: [Capwap] RE: SLAPP and IETF DS Interoperability 
> > Requirement
> > (was: Re: [Cap wap] Comments on objectives draft) 
> > 
> > 
> >   The state machine transitions back to the discovery phase 
> > and the WTC
> > tries to find a different AC.
> > 
> >   Dan. 
> > 
> > On Fri, 22 Apr 2005 22:30:12 +0200 you wrote
> > > Mmmm.... inline
> > > 
> > > > -----Original Message-----
> > > > From: [email-masked] 
> > [mailto:[email-masked]]On
> > > > Behalf Of Dan Harkins
> > > > Sent: Wednesday, April 13, 2005 18:29
> > > > To: Bob O'Hara
> > > > Cc: [email-masked]
> > > > Subject: Re: SLAPP and IETF DS Interoperability 
> > Requirement (was: Re:
> > > > [Capwap] Comments on objectives draft) 
> > > > 
> > > > 
> > > >   Bob,
> > > > 
> > > >   The -01 version of SLAPP accomplishes "provisioning 
> > 802.11 access
> > > > points to provide WLAN Service" through the downloading 
> > of a bootable
> > > > image onto the AP. The AP boots that image and is provisioned by a
> > > > control protocol contained there.
> > > 
> > > And if that image fails to reboot properly?
> > > What happens then?
> > > 
> > > > The technique described by 
> > > > SLAPP does, indeed, end up provisioning the AP to provide 
> > WLAN service 
> > > > and examples of this exist today. 
> > > > 
> > > >   Dan.
> > > > 
> > > Bert
> > > _______________________________________________
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