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From: Qin Wu <bill.wu@huawei.com>
To: "pce@ietf.org" <pce@ietf.org>
Thread-Topic: I-D Action: draft-wu-pce-dns-pce-discovery-06.txt
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From nobody Sun May 11 06:31:00 2014
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Subject: [Pce] I-D Action: draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
 This draft is a work item of the Path Computation Element Working Group of the IETF.

        Title           : PCE-based Computation Procedure To Compute Shortest Constrained P2MP Inter-domain Traffic Engineering Label Switched Paths
        Authors         : Quintin Zhao
                          Dhruv Dhody
                          Daniel King
                          Zafar Ali
                          Ramon Casellas
	Filename        : draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt
	Pages           : 22
	Date            : 2014-05-11

Abstract:
   The ability to compute paths for constrained point-to-multipoint
   (P2MP) Traffic Engineering Label Switched Paths (TE LSPs) across
   multiple domains has been identified as a key requirement for the
   deployment of P2MP services in MPLS and GMPLS-controlled networks.
   The Path Computation Element (PCE) has been recognized as an
   appropriate technology for the determination of inter-domain paths of
   P2MP TE LSPs.

   This document describes an experiment to provide procedures and
   extensions to the PCE communication Protocol (PCEP) for the
   computation of inter-domain paths for P2MP TE LSPs.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-inter-domain-p2mp-procedures/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


From nobody Sun May 11 06:40:18 2014
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From: "Daniel King" <daniel@olddog.co.uk>
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Date: Sun, 11 May 2014 14:39:09 +0100
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Subject: Re: [Pce] I-D Action: draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt
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Hi All, 

Please note that we recently uploaded a new version of the PCEP P2MP
Inter-Domain Procedures document. This is in response to Adrian's AD review:

https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-inter-domain-p2mp-proce
dures/history/

Updates include:

- Terminology clarification and consistency check
- Update to problem statement, mainly for readability
- Guidance provide for Objective Function and Constraints
- Clarification of Procedures
- Address various NITs

A full diff is available here:

http://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-inter-domain-p2mp-proce
dures-06

Br, Dan. 

-----Original Message-----
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of
internet-drafts@ietf.org
Sent: 11 May 2014 14:31
To: i-d-announce@ietf.org
Cc: pce@ietf.org
Subject: [Pce] I-D Action:
draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt


A New Internet-Draft is available from the on-line Internet-Drafts
directories.
 This draft is a work item of the Path Computation Element Working Group of
the IETF.

        Title           : PCE-based Computation Procedure To Compute
Shortest Constrained P2MP Inter-domain Traffic Engineering Label Switched
Paths
        Authors         : Quintin Zhao
                          Dhruv Dhody
                          Daniel King
                          Zafar Ali
                          Ramon Casellas
	Filename        :
draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt
	Pages           : 22
	Date            : 2014-05-11

Abstract:
   The ability to compute paths for constrained point-to-multipoint
   (P2MP) Traffic Engineering Label Switched Paths (TE LSPs) across
   multiple domains has been identified as a key requirement for the
   deployment of P2MP services in MPLS and GMPLS-controlled networks.
   The Path Computation Element (PCE) has been recognized as an
   appropriate technology for the determination of inter-domain paths of
   P2MP TE LSPs.

   This document describes an experiment to provide procedures and
   extensions to the PCE communication Protocol (PCEP) for the
   computation of inter-domain paths for P2MP TE LSPs.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-inter-domain-p2mp-proce
dures/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-pce-pcep-inter-domain-p2mp-procedures-
06

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-inter-domain-p2mp-proce
dures-06


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Subject: [Pce] Last Call: <draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt> (PCE-based Computation Procedure To Compute Shortest Constrained P2MP Inter-domain Traffic Engineering Label Switched Paths) to Experimental RFC
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The IESG has received a request from the Path Computation Element WG
(pce) to consider the following document:
- 'PCE-based Computation Procedure To Compute Shortest Constrained P2MP
   Inter-domain Traffic Engineering Label Switched Paths'
  <draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06.txt> as
Experimental RFC

The IESG plans to make a decision in the next few weeks, and solicits
final comments on this action. Please send substantive comments to the
ietf@ietf.org mailing lists by 2014-05-26. Exceptionally, comments may be
sent to iesg@ietf.org instead. In either case, please retain the
beginning of the Subject line to allow automated sorting.

Abstract

   The ability to compute paths for constrained point-to-multipoint
   (P2MP) Traffic Engineering Label Switched Paths (TE LSPs) across
   multiple domains has been identified as a key requirement for the
   deployment of P2MP services in MPLS and GMPLS-controlled networks.
   The Path Computation Element (PCE) has been recognized as an
   appropriate technology for the determination of inter-domain paths of
   P2MP TE LSPs.

   This document describes an experiment to provide procedures and
   extensions to the PCE communication Protocol (PCEP) for the
   computation of inter-domain paths for P2MP TE LSPs.


The file can be obtained via
http://datatracker.ietf.org/doc/draft-ietf-pce-pcep-inter-domain-p2mp-procedures/

IESG discussion can be tracked via
http://datatracker.ietf.org/doc/draft-ietf-pce-pcep-inter-domain-p2mp-procedures/ballot/


The following IPR Declarations may be related to this I-D:

   http://datatracker.ietf.org/ipr/2004/


From nobody Tue May 13 23:17:59 2014
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Date: Wed, 14 May 2014 08:17:38 +0200
From: Loa Andersson <loa@pi.nu>
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Subject: [Pce] RTG Area review of draft-ietf-pce-pcep-inter-domain-p2mp-procedures
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Hello,

I have been selected as the Routing Directorate reviewer for this draft. 
The Routing Directorate seeks to review all routing or
routing-related drafts as they pass through IETF last call and IESG
review, and sometimes on special request. The purpose of the review
is to provide assistance to the Routing ADs. For more information
about the Routing Directorate,please see
​http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir

Although these comments are primarily for the use of the Routing ADs, it 
would be helpful if you could consider them along with any other IETF 
Last Call comments that you receive, and strive to resolve them
through discussion or by updating the draft.

Document: draft-ietf-pce-pcep-inter-domain-p2mp-procedures-06
Reviewer: Loa Andersson
Review Date: 2013-05-14
IETF LC End Date: couldn't find
Intended Status: Experimental

Summary:

This document is basically ready for publication, but has nits that 
should be considered

prior to publication.

Comments:
1. I like that an experimental RFC (for once) actually describe an
    experiment

2. The abstract says:
   "The ability to compute paths for constrained point-to-multipoint
    (P2MP) Traffic Engineering Label Switched Paths (TE LSPs) across
    multiple domains has been identified as a key requirement for the
    deployment of P2MP services in MPLS and GMPLS-controlled networks."

    Where was this defined (reference)?

3. There are a couple of cases where words that ae in the 2119-language
    appear in the document in lower cases, please check if this is
    intended or if the normative language are intended.

4. For the terminology section it would be good to know which terms
    that are defined in this document for the first time, otherwise
    please give a reference to where to find the definition.

5. This is possibly an oxymoron comment, but it seems to me that the
    problem statement (section 3) is too focused on describing how hard
    it is to solve the inter-domain P2MP path computation, rather than
    to describe what the problem are.

6. I'm a little bit concerned about the requirements, it seems that
    they are very close to design criteria.

7. Section 7.1 the concept "entry boundary nodes" are used, is this
    concept defined anywhere? For example from figure 2 I understand
    that L, W, P and T are entry boundary nodes, while D and E are not.

8. I think it would be good have an H-PCE entry in the terminology
    section.

The document is fairly easy to read and quality is good, there is
sometimes a wish from the authors to bring through how dammed hard this
problem is to solve - they might be right - but there is a risk of
creating a lot of trees that stops you from seeing the forrest (or
maybe the other way around).

Major Issues:

None

Minor issues:

It seems that the document should lead up to a set of protocol
extensions, but in the the only change is to add the C-bit, right?

Nits:

None - that are not captured in the comments above!


/Loa

-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


From nobody Wed May 14 01:18:29 2014
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Subject: [Pce] Fwd: FW: YANG Advice and Editing Session at the next IETF meeting
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Hi all.

YANG modules are more and more often mentioned in PCE discussions. The 
following session could be an interesting opportunity to begin with.

Regards,

JP & Julien


> -----Original Message-----  From: iesg [mailto:iesg-bounces@ietf.org]
 > On Behalf Of Benoit Claise Sent: 13 May 2014 22:53 To:
 > undisclosed-recipients: Subject: YANG Advice and Editing Session at
 > the next IETF meeting
 >
 > [Sorry for the potential cross-posting]
 >
 > http://www.ietf.org/meeting/90/tutorials/yang-session.html Let me
 > stress that this should be an interactive session, and not a
 > tutorial. So come with your (plan to create) YANG modules.
 >
 > Regards, Benoit




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From: Julien Meuric <julien.meuric@orange.com>
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Subject: [Pce] Last IPR Check on draft-ietf-pce-questions
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Dear authors of the aforementioned document,

The usual check to move forward properly: has all IPR that applies to 
draft-ietf-pce-questions been disclosed in compliance with IETF IPR 
rules? (see RFCs 3979, 4879, 3669 and 5378 for more details)

A response from each of you is expected.

Regards,

JP & Julien


From nobody Thu May 22 03:22:26 2014
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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Subject: Re: [Pce] Last IPR Check on draft-ietf-pce-questions
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Hi Julien,

I am not personally aware of any IPR related to this I-D that is not already
disclosed.

Cheers,
Adrian

> -----Original Message-----
> From: Julien Meuric [mailto:julien.meuric@orange.com]
> Sent: 22 May 2014 11:13
> To: draft-ietf-pce-questions@tools.ietf.org
> Cc: pce@ietf.org
> Subject: Last IPR Check on draft-ietf-pce-questions
> 
> Dear authors of the aforementioned document,
> 
> The usual check to move forward properly: has all IPR that applies to
> draft-ietf-pce-questions been disclosed in compliance with IETF IPR
> rules? (see RFCs 3979, 4879, 3669 and 5378 for more details)
> 
> A response from each of you is expected.
> 
> Regards,
> 
> JP & Julien


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From: Leeyoung <leeyoung@huawei.com>
To: "julien.meuric@orange.com" <julien.meuric@orange.com>
Thread-Topic: FW: [Pce] I-D Action: draft-ietf-pce-wson-routing-wavelength-12.txt
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--_000_7AEB3D6833318045B4AE71C2C87E8E1729BEF390dfweml706chmchi_--


From nobody Fri May 23 00:27:42 2014
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From: Dhruv Dhody <dhruv.dhody@huawei.com>
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Hi Authors,=20

Please find some nits/comments which may be addressed as part of the next u=
pdate, possibly triggered by responsible AD or IESG reviews.

   Title Page Header
      s/Network Working Group/PCE Working Group

   Abstract
      Add acronym - Virtual Network Topology Manager (VNTM) &
      Hierarchical PCE (H-PCE).

   Sec 1. Introduction
      Add acronym - Virtual Network Topology Manager (VNTM)

   Sec 1.1 Terminology
      OLD
        Readers are assumed to be thoroughly familiar with terminology
        defined in defined in [RFC4655], [RFC4726], [RFC5440], and
        [RFC5623].
      NEW
        Readers are assumed to be thoroughly familiar with terminology
        defined in [RFC4655], [RFC4726], [RFC5440], [RFC5623], [RFC6805]
        and [I-D.ietf-pce-stateful-pce]. =20

   Sec 2. What Is Topology Information?
      Add acronym - objective functions (OF)

   Sec 3. How Is Topology Information Gathered?
      s/some how/somehow

   Sec 5. How Do I Select Between PCEs?
      Correct the spacing in the following line:
        OLD:
        A PCC may also vary which PCE it uses according to congestion
        information reported by the PCEs using the Notification Object
        and Notification Type[RFC5440] .
        NEW:
        A PCC may also vary which PCE it uses according to congestion
        information reported by the PCEs using the Notification Object
        and Notification Type [RFC5440].

   Sec 8. Who Runs Or Owns a Parent PCE?
      IMHO a bit of introduction about Parent PCE would help set the
      tone. Something like this..=20

        A Parent PCE as per [RFC6805] is responsible for selecting
        inter-domain path by coordinating with child PCEs and
        maintaining a domain topology map.=20

   Sec 12. Does H-PCE Solve The Internet?
      s/layers/levels (better to be consistent and use the word level in
      context of H-PCE)

   Sec 16. How Do Redundant Stateful PCEs Synchronize State?
      s/issued described above/issue described above

   Sec 24. Where Does Policy Fit In?

        Policy enters into all aspect of the use of a PCE starting from
        the very decision to use a PCE to delegate computation function
        from the LSRs.
        - Each PCC must select which computations will be delegated to a
        PCE.

      Avoid the use of word delegate as it has another meaning in
      context of stateful PCE. Perhaps use 'off-load'?

        - An Active PCE must have a policy relationship with its LSRs to
        determine which LSPs can be modified or triggered, and what LSP
        delegation is supported.

      Is 'what LSP' intentional? Shouldn't this be 'which LSP'?

   Sec 29. References    =20
      draft-ietf-pce-stateful-pce is considered an informative
      reference.

        http://www.ietf.org/iesg/statement/normative-informative.html
        Normative references specify documents that must be read to
        understand or implement the technology in the new RFC, or whose
        technology must be present for the technology in the new RFC to
        work.

      IMHO draft-ietf-pce-stateful-pce should be read to understand some
      sections of this document. If that is true and you agree, Can a
      "note and move on" [RFC4897] be applied in this case?=20

   --
   Some unexpanded acronyms - AS, LSP, ASBR, NMS, NETCONF, SONET, SDH.
   --

Regards,
Dhruv

---------------------------------------------------------------
Dhruv Dhody=20
System Architect,=20
Huawei Technologies India Pvt. Ltd.,
Banagalore
Mobile: +91-9845062422
This e-mail and its attachments contain confidential information from HUAWE=
I, which=20
is intended only for the person or entity whose address is listed above. An=
y use of the=20
information contained herein in any way (including, but not limited to, tot=
al or partial=20
disclosure, reproduction, or dissemination) by persons other than the inten=
ded=20
recipient(s) is prohibited. If you receive this e-mail in error, please not=
ify the sender by=20
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Subject: Re: [Pce] Regarding draft-ietf-pce-questions-05
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These are good nits, thanks.

Chairs. Do you want them worked on now or later?

A

> -----Original Message-----
> From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Dhruv Dhody
> Sent: 23 May 2014 08:27
> To: draft-ietf-pce-questions@tools.ietf.org
> Cc: pce@ietf.org
> Subject: [Pce] Regarding draft-ietf-pce-questions-05
> 
> Hi Authors,
> 
> Please find some nits/comments which may be addressed as part of the next
> update, possibly triggered by responsible AD or IESG reviews.
> 
>    Title Page Header
>       s/Network Working Group/PCE Working Group
> 
>    Abstract
>       Add acronym - Virtual Network Topology Manager (VNTM) &
>       Hierarchical PCE (H-PCE).
> 
>    Sec 1. Introduction
>       Add acronym - Virtual Network Topology Manager (VNTM)
> 
>    Sec 1.1 Terminology
>       OLD
>         Readers are assumed to be thoroughly familiar with terminology
>         defined in defined in [RFC4655], [RFC4726], [RFC5440], and
>         [RFC5623].
>       NEW
>         Readers are assumed to be thoroughly familiar with terminology
>         defined in [RFC4655], [RFC4726], [RFC5440], [RFC5623], [RFC6805]
>         and [I-D.ietf-pce-stateful-pce].
> 
>    Sec 2. What Is Topology Information?
>       Add acronym - objective functions (OF)
> 
>    Sec 3. How Is Topology Information Gathered?
>       s/some how/somehow
> 
>    Sec 5. How Do I Select Between PCEs?
>       Correct the spacing in the following line:
>         OLD:
>         A PCC may also vary which PCE it uses according to congestion
>         information reported by the PCEs using the Notification Object
>         and Notification Type[RFC5440] .
>         NEW:
>         A PCC may also vary which PCE it uses according to congestion
>         information reported by the PCEs using the Notification Object
>         and Notification Type [RFC5440].
> 
>    Sec 8. Who Runs Or Owns a Parent PCE?
>       IMHO a bit of introduction about Parent PCE would help set the
>       tone. Something like this..
> 
>         A Parent PCE as per [RFC6805] is responsible for selecting
>         inter-domain path by coordinating with child PCEs and
>         maintaining a domain topology map.
> 
>    Sec 12. Does H-PCE Solve The Internet?
>       s/layers/levels (better to be consistent and use the word level in
>       context of H-PCE)
> 
>    Sec 16. How Do Redundant Stateful PCEs Synchronize State?
>       s/issued described above/issue described above
> 
>    Sec 24. Where Does Policy Fit In?
> 
>         Policy enters into all aspect of the use of a PCE starting from
>         the very decision to use a PCE to delegate computation function
>         from the LSRs.
>         - Each PCC must select which computations will be delegated to a
>         PCE.
> 
>       Avoid the use of word delegate as it has another meaning in
>       context of stateful PCE. Perhaps use 'off-load'?
> 
>         - An Active PCE must have a policy relationship with its LSRs to
>         determine which LSPs can be modified or triggered, and what LSP
>         delegation is supported.
> 
>       Is 'what LSP' intentional? Shouldn't this be 'which LSP'?
> 
>    Sec 29. References
>       draft-ietf-pce-stateful-pce is considered an informative
>       reference.
> 
>         http://www.ietf.org/iesg/statement/normative-informative.html
>         Normative references specify documents that must be read to
>         understand or implement the technology in the new RFC, or whose
>         technology must be present for the technology in the new RFC to
>         work.
> 
>       IMHO draft-ietf-pce-stateful-pce should be read to understand some
>       sections of this document. If that is true and you agree, Can a
>       "note and move on" [RFC4897] be applied in this case?
> 
>    --
>    Some unexpanded acronyms - AS, LSP, ASBR, NMS, NETCONF, SONET, SDH.
>    --
> 
> Regards,
> Dhruv
> 
> ---------------------------------------------------------------
> Dhruv Dhody
> System Architect,
> Huawei Technologies India Pvt. Ltd.,
> Banagalore
> Mobile: +91-9845062422
> This e-mail and its attachments contain confidential information from HUAWEI,
> which
> is intended only for the person or entity whose address is listed above. Any
use
> of the
> information contained herein in any way (including, but not limited to, total
or
> partial
> disclosure, reproduction, or dissemination) by persons other than the intended
> recipient(s) is prohibited. If you receive this e-mail in error, please notify
the
> sender by
> phone or email immediately and delete it!
> 
> 
> _______________________________________________
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