It makes sense! ;)
For the PaC behavior, i think that a "If PaC wants... then PaC MUST" is 
acceptable.
Ok for the behavior of the PAA. It MAY initiate the re-auth when it wants.

BR,

Lionel

> -----Message d'origine-----
> De : Alper Yegin [mailto:[EMAIL PROTECTED] 
> Envoyé : jeudi 19 avril 2007 08:32
> À : MORAND Lionel RD-CORE-ISS; [email protected]
> Objet : RE: [Pana] PAA initiating Re-authentication 
> 
> 
> In order to reduce the optionality, can we say:
> 
> - PAA MUST send lifetime (when infinity, it can send maxint).
> - PaC SHOULD initiate re-auth before lifetime expires. A 
> "should" because PaC may choose not to extend the 
> authorization. Or we can make it a must with a conditional 
> "if PaC wants to extend....".
> - PAA MAY initiate re-auth. Now, this one does not have to be 
> related to lifetime expiry, given that we put that burden on the PaC. 
> 
> Does this make sense?
> 
> Alper
> 
> 
> 
> 
> > -----Original Message-----
> > From: MORAND Lionel RD-CORE-ISS 
> > [mailto:[EMAIL PROTECTED]
> > Sent: Thursday, April 12, 2007 12:43 PM
> > To: Alper Yegin; [email protected]
> > Subject: [Pana] PAA initiating Re-authentication
> > 
> > Hi,
> > 
> > In section 5.7 Session Lifetime, it is stated:
> > 
> > "The PAA MUST initiate the re-authentication phase before 
> the current 
> > session lifetime expires."
> > 
> > I can't figure out why there is a "MUST" in that case.
> > 
> > As documented in the draft,
> > 
> > - The session lifetime is not negociable between the PAA 
> and the PaC.
> > - The session lifetime may be sent to the PaC. If not, the PaC 
> > considers the PANA session as unlimited.
> > - Both PaC and PAA may initiate a re-authentication procedure 
> > regardless of the session lifetime.
> > 
> > Could we just have the following principles:
> > 
> > - If the session lifetime is sent to the PaC:
> > The PaC should re-authenticate before the expiration of the session 
> > lifetime. Otherwise, the session is deleted by the PAA at the 
> > expiration of the session lifetime (and the PaC will purge 
> related local state).
> > The PAA may initiate a re-authentication procedure before the 
> > expiration of the session lifetime. Otherwise, the session 
> is deleted 
> > by the PAA at the expiration of the session lifetime (and 
> the PaC will 
> > purge related local state).
> > Both PaC and PAA may initiate a re-authentication procedure 
> regardless 
> > of the session lifetime.
> > 
> > - If the session lifetime is sent to the PaC:
> > The PAA may initiate a re-authentication procedure before the 
> > expiration of the session lifetime. Otherwise, the session 
> is deleted 
> > at the expiration of the session lifetime.
> > Both PaC and PAA may initiate a re-authentication procedure 
> regardless 
> > of the session lifetime.
> > 
> > 
> > With these principles, it is up to the PaC to maintain 
> active its PANA 
> > session when infomed by the network (PAA) of the authorized session 
> > lifetime.
> > There is no strong requirement for the PAA/network point of 
> view to . 
> > It is therefore up to the network operator to configure the PAA 
> > expected behaviour.
> > 
> > Comments?
> > 
> > Lionel
> > 
> > 
> > > -----Message d'origine-----
> > > De : Alper Yegin [mailto:[EMAIL PROTECTED] Envoyé : jeudi 5 
> > > avril 2007 10:06 À : [email protected] Objet : [Pana] Review 
> > > pana-pana-15a
> > >
> > >
> > > PANA specification is reviewed based on the last round of AD 
> > > comments (thanks Yoshi!).
> > >
> > > The spec is here:
> > >
> > > http://www.panasec.org/docs/editing/draft-ietf-pana-pana-15a.txt
> > >
> > > And it's diff with the version that predates last round of AD 
> > > comments
> > > (-13):
> > >
> > > http://www.panasec.org/docs/editing/draft-ietf-pana-pana-15a-f
> > > rom-3.diff.htm
> > > l
> > >
> > > Please review the document and register your feedback by 
> the end of 
> > > April 12, Thursday.
> > >
> > > Upon collecting and resolving any issues, the document 
> will proceed 
> > > to IETF last call.
> > >
> > > Thanks
> > >
> > > Alper
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Pana mailing list
> > > [email protected]
> > > https://www1.ietf.org/mailman/listinfo/pana
> > >
> 
> 

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