HI, Dhruv and the authors this draft:

How to ensure the interoperability? The document just says:
"Further, if one or more parameters received in the POLICY-PARAMETERS-TLV 
received by the PCEP speaker are considered as unacceptable in the context of 
the
   associated policy (e.g. out of range value, badly encoded value...), the 
PCEP speaker MUST NOT apply the received policy and SHOULD log this event."
There will be no more detail error information can be reported via such opaque 
policy. How to debug the policy deployment then?

And, if there are some examples to show what association requirements can't be 
accomplished by the SVEC object, and can only be done via PAG, the document may 
be more convincible.


Best Regards

Aijun Wang
China Telecom 

-----Original Message-----
From: Dhruv Dhody [mailto:[email protected]] 
Sent: Friday, September 18, 2020 12:40 PM
To: Aijun Wang <[email protected]>
Cc: [email protected]; [email protected]; pce-chairs 
<[email protected]>
Subject: Re: [Pce] WGLC for draft-ietf-pce-association-policy

Hi Aijun,

Thank you for your comments.

I wanted to focus on the 3rd point. I remember this being discussed perhaps in 
the previous incarnation of the draft. The main motivation in PCEP is to 
provide a "standard" container and mechanism to associate (and encode the 
policy) and leave the actual policy standardization out of the scope of PCEP.

Another way to look at this would be, when a policy is well-known and needs to 
be standardized (some may consider diversity or SR-Policy as those policies), 
we define a new standard association-type for it with a standard TLV. This I-D 
is used when we do not have a standard policy defined in PCEP but would like to 
use the protocol as an opaque container to associate policies to the path. What 
does that policy mean and how to encode/decode the policy parameters are 
expected to be done out-of-band via other mechanisms which are better suited 
for policy definitions and configurations at the PCEP speakers.  Hope this 
helps!

Thanks!
Dhruv (hat-less!)

On Fri, Sep 18, 2020 at 6:43 AM Aijun Wang <[email protected]> wrote:
>
> Hi, Authors:
>
> I Just have a quick view of this draft, and has some points wanted to 
> be
> clarified:
> 1. This draft defines one new association type (policy association 
> type) that follows the procedures described in RFC8697 and attached 
> TLV? Is it right?
> 2. According to the text described in
> https://tools.ietf.org/html/rfc8697#section-3.2, to define one new 
> association type, the related draft should clarify its relationship 
> between the SVEC object, if any.
> Should this draft to add such part?
> 3. For the definition of "Policy-Parameters-TLV", the "Policy 
> Parameters" is opaque value to the PCEP peers.  The draft describes 
> the PCEP peers should know how to the encoding format of such policy 
> in advance. But from my POV, the encoding format is the main content 
> needs to be standardized. If such contents can't be standardized, what 
> benefit can we get from this standardization work? What's the reason not to 
> standardize this?
>
>
> Best Regards
>
> Aijun Wang
> China Telecom
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of 
> Dhruv Dhody
> Sent: Thursday, September 17, 2020 5:42 PM
> To: [email protected]
> Cc: [email protected]; pce-chairs 
> <[email protected]>
> Subject: Re: [Pce] WGLC for draft-ietf-pce-association-policy
>
> Hi WG,
>
> A reminder to the WG to be more vocal. I am copying this slide from 
> the chair's WG status slide
> [https://www.ietf.org/proceedings/108/slides/slides-108-pce-1-introduc
> tion-0
> 1]
>
> > Please be Vocal
> >
> > o During WG Adoption and WG LC calls, the response is less.
> >
> > o Please be vocal on the list to help us gauge the consensus better.
> >
> > o The working group mailing lists are looked at by the IESG, IAB, 
> > and
> others (internal and external to IETF) to determine 
> interest/participation level in our standards process.
> >
> > o Please review ideas from your peers, these are community outputs 
> > of the
> working group as a whole.
> >
>
> The WG LC for the draft in question ends on Monday 21st Sept. Please 
> respond with your explicit support (or not) for its publication.
>
> Thanks!
> Dhruv & Julien
>
>
>
> On Fri, Sep 4, 2020 at 10:43 AM Dhruv Dhody <[email protected]> wrote:
> >
> > Hi WG,
> >
> > This email starts a working group last call for 
> > draft-ietf-pce-association-policy [1].  Please indicate your support 
> > or concern for this draft. If you are opposed to the progression of 
> > the draft to RFC, please articulate your concern. If you support it, 
> > please indicate that you have read the latest version and it is 
> > ready for publication in your opinion. As always, review comments 
> > and nits are most welcome.
> >
> > The WG LC will end on 21st September 2020.
> >
> > Thanks,
> > Dhruv & Julien
> > [1]
> > https://datatracker.ietf.org/doc/draft-ietf-pce-association-policy/
>
> _______________________________________________
> Pce mailing list
> [email protected]
> https://www.ietf.org/mailman/listinfo/pce
>

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