John, I often appreciate Erminio's comments on this mailing list but I had not till now the pleasure to meet him because he does not attend the IETF meetings. At my knowledge, I'm the only "Alessandro" that has been following MPLS-TP standardization process and apparently it seems to me you want to associate Erminio's comments to me (in your email below). I regret to tell you that I follow standards on behalf of TI and exclusively for the interest of my Company. I have therefore no need to use an informal email account (and I'll never do it). 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: ietf-bounces@xxxxxxxx [mailto:ietf-bounces@xxxxxxxx] Per conto di John E Drake Inviato: mercoledì 19 ottobre 2011 23:55 A: erminio.ottone_69@xxxxxxxxx; brian.e.carpenter@xxxxxxxxx; yang.jian90@xxxxxxxxxx Cc: mpls@xxxxxxxx; mpls-bounces@ietf.orgLarry; ietf@xxxxxxxx Oggetto: RE: [mpls] R: Re: 答复: 回复： R: 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 Alessandro, Apparently, the advice given regarding the risks and costs associated with deploying proprietary or pre-standard solutions didn't resonate with you. Do you really expect the rest of us to clean up after you? Thanks, John > -----Original Message----- > From: mpls-bounces@xxxxxxxx [mailto:mpls-bounces@xxxxxxxx] On Behalf > Of erminio.ottone_69@xxxxxxxxx > Sent: Wednesday, October 19, 2011 1:49 PM > To: brian.e.carpenter@xxxxxxxxx; yang.jian90@xxxxxxxxxx > Cc: mpls@xxxxxxxx; mpls-bounces@ietf.orgLarry; ietf@xxxxxxxx > Subject: [mpls] R: Re: 答复: 回复： R: 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 > > If the MPLS WG had selected the OAM solution that was already existing > (as indicated multiple times by the operators which have already > massively deployed it), we would have had a single OAM solution both > in the market and in the IETF RFCs. > > We now have "two" OAM solutions: one (which is not actually really > singular) > documented by IETF RFCs and one widely implemented and deployed. This > draft is not resolving this issue at all. > > >----Messaggio originale---- > >Da: brian.e.carpenter@xxxxxxxxx > >Data: 5-ott-2011 22.16 > >A: <yang.jian90@xxxxxxxxxx> > >Cc: "mpls@xxxxxxxx"<mpls@xxxxxxxx>, "ietf@xxxxxxxx"<ietf@xxxxxxxx>, > <mpls- > bounces@ietf.orgLarry> > >Ogg: Re: [mpls] 答复: 回复： R: 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 > > > >Hi Jian, > > > >On 2011-10-06 03:53, yang.jian90@xxxxxxxxxx wrote: > >> Dear All, > >> > >> I do not support either. > >> > >> In section 3.5: > >> If two MPLS OAM protocols were to be deployed we would have to > consider > >> three possible scenarios: > >> 1) Isolation of the network into two incompatible and unconnected > islands. > >> > >> Two OAM solutions have been discussed for a long time in both ITU-T > and > >> IETF. > >> Each solution has their own supporters inculding carriers and > vendors. > >> So I don't think there is any interworking issue between two OAM > solutions. > >> Carrier will select one OAM solution, A or B, in their network. > >> No need to select A and B at one network at the same time. > > > >There are two large costs that you are ignoring: > > > >a) all vendors wishing to bid for business from A and B will have to > > implement and support both solutions. > > > >b) when A buys B or B buys A, the incompatible networks will have to > > be merged. > > > >These are costs that run to hundreds of millions of USD, EUR or CNY. > >They are costs caused directly by SDOs creating rival solutions. > > > >I think it would be irresponsible of the IETF not to document this > >situation. As engineers, we have an ethical responsibility here. > > > > Brian > >_______________________________________________ > >mpls mailing list > >mpls@xxxxxxxx > >https://www.ietf.org/mailman/listinfo/mpls > > > > > _______________________________________________ > mpls mailing list > mpls@xxxxxxxx > https://www.ietf.org/mailman/listinfo/mpls _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf Questo messaggio e i suoi allegati sono indirizzati esclusivamente alle persone indicate. La diffusione, copia o qualsiasi altra azione derivante dalla conoscenza di queste informazioni sono rigorosamente vietate. Qualora abbiate ricevuto questo documento per errore siete cortesemente pregati di darne immediata comunicazione al mittente e di provvedere alla sua distruzione, Grazie. This e-mail and any attachments is confidential and may contain privileged information intended for the addressee(s) only. 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