Dear all, I do not support. Basically I think it is superfluous dedicate an RFC to state it is better having one standard instead of two ones or many... for sure the lower are the variants the better is for the industry (one is the ideal). When two or more standards or de-facto standards exist it is because the problem they solve is not exactly the same, the way they solve the problem is optimized for different environments/boundary conditions (more efficient, more effective, etc). Therefore a single solution does not necessarily meet the different market requirements. It is fundamental to enter into the problem's details before making consideration about the best way to proceed (one solution, two solutions, multiple solutions) whilst the document clearly declares it does not want to make any technical evaluations. After more than three years of debates within the IETF and major unresolved technical concerns risen from some transport operators, the existence of this draft is by itself the sure sign that MPLS-TP OAM is a case where a single solution has not be found to meet all the different market requirements. Otherwise, why are we still discussing about it....? Therefore we must be realistic and the lessons learned from the past should guide our decisions: if a solution cannot be found for satisfying all the requirements it is better to have two standards and let the market decide how to exploit them. Are we really sure the cost(many) / benefit (none) analysis done in section 7.5 is realistic? Best regards, Alessandro ------------------------------------------------------------------ Telecom Italia Alessandro D'Alessandro Transport Innovation Via Reiss Romoli, 274 - 10148 Torino phone: +39 011 228 5887 mobile: +39 335 766 9607 fax: +39 06 418 639 07 -----Messaggio originale----- Da: mpls-bounces@xxxxxxxx [mailto:mpls-bounces@xxxxxxxx] Per conto di Adrian Farrel Inviato: lunedì 26 settembre 2011 23:58 A: mpls@xxxxxxxx Oggetto: [mpls] FW: Last Call: <draft-sprecher-mpls-tp-oam-considerations-01.txt> (The Reasons for Selecting a Single Solution for MPLS-TP OAM) to Informational RFC MPLS Working Group, Please be aware of the IETF last call as shown below. The document was presented for publication as an individual RFC with IETF consensus and AD sponsorship. This draft is clearly close and relevant to the work you do, but after discussing with the chairs I came to the conclusion that it does not comment on the technical or process decisions of the MPLS working groups, and it does not attempt to make any technical evaluations or definitions within the scope of the MPLS working group. It is more of a philosophical analysis of the way the IETF approaches the "two solutions" problem with special reference to MPLS-TP OAM. Thus, I am accepting the document as AD Sponsored rather than running it through the MPLS working group. My reasoning is that the working group has got plenty to do working on technical issues without being diverted into wider IETF philosophy. As an AD Sponsored I-D it is subject to a four week IETF last call. That is plenty of opportunity for everyone to comment and express their views. Please send your comments to the IETF mailing list as described below, or (in exceptional circumstances) direct to the IESG. Thanks, Adrian > -----Original Message----- > From: ietf-announce-bounces@xxxxxxxx [mailto:ietf-announce- > bounces@xxxxxxxx] On Behalf Of The IESG > Sent: 26 September 2011 20:43 > To: IETF-Announce > Subject: Last Call: <draft-sprecher-mpls-tp-oam-considerations-01.txt> > (The Reasons for Selecting a Single Solution for MPLS-TP OAM) to > Informational RFC > > > The IESG has received a request from an individual submitter to > consider the following document: > - 'The Reasons for Selecting a Single Solution for MPLS-TP OAM' > <draft-sprecher-mpls-tp-oam-considerations-01.txt> as an > Informational 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@xxxxxxxx mailing lists by 2011-10-24. Exceptionally, comments may > be sent to iesg@xxxxxxxx instead. In either case, please retain the > beginning of the Subject line to allow automated sorting. > > Abstract > > The MPLS Transport Profile (MPLS-TP) is a profile of MPLS technology > for use in transport network deployments. That is, MPLS-TP is a set > of functions and features selected from the wider MPLS toolset and > applied in a consistent way to meet the needs and requirements of > operators of packet transport networks. > > During the process of development of the profile, additions to the > MPLS toolset have been made to ensure that the tools available met > the requirements. These additions were motivated by MPLS-TP, but form > part of the wider MPLS toolset such that any of them could be used in > any MPLS deployment. > > One major set of additions provides enhanced support for Operations, > Administration, and Maintenance (OAM). This enables fault management > and performance monitoring to the level needed in a transport > network. Many solutions and protocol extensions have been proposed to > address these OAM requirements, and this document sets out the > reasons for selecting a single, coherent set of solutions for > standardization. > > > The file can be obtained via > http://datatracker.ietf.org/doc/draft-sprecher-mpls-tp-oam-considerati > ons/ > > IESG discussion can be tracked via > http://datatracker.ietf.org/doc/draft-sprecher-mpls-tp-oam-considerati > ons/ > > > No IPR declarations have been submitted directly on this I-D. > _______________________________________________ > IETF-Announce mailing list > IETF-Announce@xxxxxxxx > https://www.ietf.org/mailman/listinfo/ietf-announce _______________________________________________ mpls mailing list mpls@xxxxxxxx https://www.ietf.org/mailman/listinfo/mpls Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle persone indicate. 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