Re: [Teas] Proposed charter update
Lou Berger <lberger@labn.net> Mon, 15 October 2018 14:59 UTC
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To: Dhruv Dhody <dhruv.dhody@huawei.com>, Dhruv Dhody <dhruv.ietf@gmail.com>
Cc: TEAS WG Chairs <teas-chairs@ietf.org>, TEAS WG <teas@ietf.org>
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From: Lou Berger <lberger@labn.net>
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Date: Mon, 15 Oct 2018 10:59:17 -0400
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Subject: Re: [Teas] Proposed charter update
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Hi Dhruv, On 10/12/2018 1:01 AM, Dhruv Dhody wrote: > Hi Lou, > > OLDER: > a) Traffic-engineering architectures for generic applicability > across packet and non-packet networks. This includes both > networks that include the use of PCE and those that do not. > The PCE architecture itself is out of the WG scope. > > OLD: > a) Traffic-engineering architectures for generic applicability > across packet and non-packet networks.. This includes, for example, > both networks that include the use of PCE and those that conform with > ACTN principles but don't make use of PCE. The PCE architecture itself > is out of the WG scope. > > NEW: > a) Traffic-engineering architectures for generic applicability > across packet and non-packet networks. This includes, for example, > networks that perform centralized computation and control, in conformance > with ACTN (and PCE) principles as well as distributed computation and > control. The use of PCEP is optional and the PCE architecture itself > is out of the WG scope. > > Call to the wordsmiths in the WG to further refine! :) > > I wanted to differentiate between PCE (entity that does path computation) and the PCEP (protocol). > "..ACTN principles but don't make use of PCE" was the main issue! ACTN and PCE are different things? IAs I see it, it's possible to have a controller that follows ACTN but not PCE (as embodied in the related RFCs). I think your point is that one that does this is still following PCE *principles* -- do I understand correctly? If so, I think this is a very subtle point and perhaps, we can side step this as follows: a) Traffic-engineering architectures for generic applicability across packet and non-packet networks. This includes, for example, networks that perform centralized computation and control, distributed computation and control, or even a hybrid approach. What do you think? Thanks, Lou > Hope this helps! > > Regards, > Dhruv > > > -- > Dhruv Dhody > Lead Architect > Network Business Line > Huawei Technologies India Pvt. Ltd. > Survey No. 37, Next to EPIP Area, Kundalahalli, Whitefield > Bengaluru, Karnataka - 560066 > Tel: + 91-80-49160700 Ext 71583 II Email: dhruv.dhody@huawei.com > > 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! > > >> -----Original Message----- >> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Lou Berger >> Sent: 10 October 2018 22:45 >> To: Dhruv Dhody <dhruv.ietf@gmail.com> >> Cc: TEAS WG Chairs <teas-chairs@ietf.org>; TEAS WG <teas@ietf.org> >> Subject: Re: [Teas] Proposed charter update >> >> Dhruv, >> >> you made the following comment on the google doc: >> >>> *Dhruv Dhody* >>> >>> This should convey that both centralized (controller) and distributed >>> TE is in scope. And then use of "PCEP" is optional in the controller. >>> I dont think that is clear with this text. >>> >> Do you have any specific text proposals to address your concern? >> >> Thanks, >> >> Lou >> >> >> On 10/8/2018 2:49 AM, Vishnu Pavan Beeram wrote: >>> Hi, >>> >>> Over the past few months we've noted that our charter could use a bit >>> of an update to match the current state of TEAS and other working groups. >>> We've taken a pass at this and have a proposed revision. Once the WG >>> agrees on changes, we'll pass those changes along to our AD who is the >>> actual owner of our charter. The text is enclosed below as well as >>> available with changes tracked at: >>> >>> https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_d >>> ocument_d_1l5y3nH3KmOQbHOMp-5FRFm1SK5riS5qi1klve-2D-2DkyUbSU_edit-3Fus >>> p-3Dsharing&d=DwIDaQ&c=HAkYuh63rsuhr6Scbfh0UjBXeMK-ndb3voDTXcWzoCI&r=C >>> FHVfW0WsgxSqM6wTJiWE5evUJAdlUl1fm7E0WVbiS8&m=6pI1yDFJYCLr4YBDXOEJFxWzJ >>> QMmsW5q1X0ic60qgM4&s=XHgp3ISuFZZj_FUiGKK2ZjRndlSyIxgomtfqyEt3DRU&e= >>> >>> Please discuss any proposed changes on the list, i.e., changes to the >>> charter that are suggested in the google-doc but not agreed to here >>> will be ignored. >>> >>> We'd like to have the changes agreed to by the end of this month so >>> the IESG may have time to review/act before IETF103. >>> >>> Thank you, >>> Pavan and Lou >>> >>> -- >>> Draft Update to TEAS WG Charter (Version 1) >>> >>> The Traffic Engineering Architecture and Signaling (TEAS) Working >>> Group is responsible for defining IP, MPLS and GMPLS traffic >>> engineering architecture and identifying required related >>> control-protocol functions, i.e., routing and path computation element >>> functions. The TEAS group is also responsible for standardizing >>> generalized, i.e., non-technology specific, RSVP-TE signaling protocol >>> mechanisms, >>> >>> Traffic Engineering (TE) is the term used to refer to techniques that >>> enable operators to control how specific traffic flows are treated >>> within their networks. TE is applied to packet networks via MPLS TE >>> tunnels and LSPs, but may also be provided by other mechanisms such as >>> forwarding rules similar to policy-based routing. The MPLS-TE control >>> plane was generalized to additionally support non-packet technologies >>> via GMPLS. RSVP-TE is the signaling protocol used for both MPLS-TE >>> and GMPLS. Centralized and logically centralized control models are >>> also supported, e.g., via Abstraction and Control of Traffic >>> Engineered Networks (ACTN) and stateful-PCE. >>> >>> The TEAS WG is responsible for: >>> >>> a) Traffic-engineering architectures for generic applicability >>> across packet and non-packet networks.. This includes, for example, >>> both networks that include the use of PCE and those that conform with >>> ACTN principles but don't make use of PCE. The PCE architecture itself >>> is out of the WG scope. >>> >>> b) Definition of protocol-independent metrics and parameters >>> (measurement and/or service attributes) for describing links and >>> tunnels/paths required for traffic engineering (and related routing, >>> signaling and path computation). These will be developed in >>> conjunction with requests and requirements from other WGs to ensure >>> overall usefulness. >>> >>> c) Functional specification of extensions for routing (OSPF, ISIS) >>> and for path computation (PCE), including those that provide general >>> enablers of traffic-engineering systems that also use RSVP-TE. >>> Protocol formats and procedures that embody these extensions will be >>> done in coordination with the WGs supervising those protocols. >>> >>> d) Functional specification of generic (i.e., not data plane >>> technology-specific) extensions for RSVP-TE, and the associated >>> protocol formats and procedures that embody these extensions. >>> >>> e) Definition of control plane mechanisms and extensions to allow >>> the setup and maintenance of TE paths and TE tunnels that span >>> multiple domains and/or switching technologies, where a domain may be >>> an IGP area, an Autonomous System, or any other region of topological >> visibility. >>> f) Definition and extension of management and security techniques >>> for RSVP-TE signaling. This includes configuring and monitoring >>> RSVP-TE as well as mechanisms used to configure, control, and report >>> OAM within TE networks. YANG and MIB modules may be considered. >>> >>> The TEAS working group is chartered to deliver the following: >>> >>> 1. Definition of additional abstract service, link, and path >>> properties such as jitter, delay, and diversity. Extensions to IGPs to >>> advertise these properties, and extensions to RSVP-TE to request and >>> to accumulate these properties. Work with PCE WG to include these >>> properties in computation requests. >>> >>> 2. Specification of terminology, architecture, and protocol >>> requirements for abstraction and distribution of TE information >>> between interconnected TE domains/layers. >>> >>> 3. Specification and protocol extensions for a GMPLS External >>> Network-to-Network Interface (E-NNI), i.e., multi-domain GMPLS support. >>> >>> 4. Protocol mechanisms to signal associated LSPs in particular with >>> different source nodes. >>> >>> 5. Requirements and protocol extensions for additional protection >>> mechanisms including end-point protection, protection of P2MP LSPs, >>> and inter-domain protection. >>> >>> 6. YANG models in support of Traffic Engineering, in coordination >>> with working groups working on YANG models for network topology and >>> for technology-specific network attributes. >>> >>> Requirements may be documented in stand-alone RFCs, may be folded >>> into architecture or solutions RFCs, may be recorded on a wiki, or may >>> be documented in an Internet-Draft that is not progressed to RFC. >>> >>> The TEAS WG will coordinate with the following working groups: >>> >>> - With the MPLS WG to maintain and extend MPLS-TE protocol >>> mechanisms and to determine whether they should be generalized. >>> >>> - With the CCAMP WG to maintain and extend non-packet, data plane >>> technology-specific TE protocol mechanisms and to determine whether >>> they should be generalized. >>> >>> - With the LSR (OSPF and ISIS) WG to maintain or extend TE routing >>> mechanisms. >>> >>> - With the PCE WG on uses of a PCE in the traffic-engineering >>> architecture, on PCE extensions per the above, and on RSVP-TE >>> extensions to support PCE WG identified requirements. >>> >>> - With the IDR WG on the use of BGP-LS in TE environments. >>> >>> - With the DetNet WG on mechanisms (YANG models and protocols) to >>> support DetNet use cases. >>> >>> - With the SPRING WG on TE architecture and, where appropriate, >>> TE-related protocol extensions. >>> >>> In doing this work, the WG will cooperate with external SDOs (such as >>> the ITU-T and the IEEE 802.1) as necessary. >>> >>> >>> >>> >>> >>> >>> _______________________________________________ >>> Teas mailing list >>> Teas@ietf.org >>> https://www.ietf.org/mailman/listinfo/teas >> _______________________________________________ >> Teas mailing list >> Teas@ietf.org >> https://www.ietf.org/mailman/listinfo/teas > _______________________________________________ > Teas mailing list > Teas@ietf.org > https://www.ietf.org/mailman/listinfo/teas
- [Teas] Proposed charter update Vishnu Pavan Beeram
- Re: [Teas] Proposed charter update Andrew G. Malis
- Re: [Teas] Proposed charter update Lou Berger
- Re: [Teas] Proposed charter update Andrew G. Malis
- Re: [Teas] Proposed charter update Vishnu Pavan Beeram
- Re: [Teas] Proposed charter update Lou Berger
- [Teas] 答复: Proposed charter update Aijun Wang
- Re: [Teas] Proposed charter update Dhruv Dhody
- Re: [Teas] 答复: Proposed charter update Lou Berger
- Re: [Teas] Proposed charter update Lou Berger
- Re: [Teas] Proposed charter update Dhruv Dhody
- [Teas] 答复: 答复: Proposed charter update Aijun Wang
- Re: [Teas] 答复: 答复: Proposed charter update Lou Berger
- Re: [Teas] 答复: 答复: Proposed charter update Aijun Wang
- Re: [Teas] Proposed charter update Lou Berger
- [Teas] 答复: Proposed charter update Dongjie (Jimmy)