Re: [mpls-tp] [mpls] [PWE3] [AHMPLS-TP] Re: pollondraft-he-mpls-tp-csf-03.txt

[<[e-mail]>]

Eric...you are correct.  The key point you are making is that it is the OAM mechanisms in the *IP layer network* that act totally independent of whatever server layer is used to create each of the link connections in the IP layer.  We must stop functionally coupling different layer networks...it is just plain wrong as I explained further in my post this morning (GMT).

regards, neil 

> -----Original Message-----
> From: [e-mail] [mailto:[e-mail]] On 
> Behalf Of Eric Osborne (eosborne)
> Sent: 02 December 2010 01:34
> To: Yuanlong Jiang; John E Drake; Sprecher, Nurit (NSN - 
> IL/Hod HaSharon); Loa Andersson; [e-mail]; 
> [e-mail]; [e-mail]; MPLS-TP ad hoc team
> Subject: Re: [mpls] [PWE3] [AHMPLS-TP] Re: [mpls-tp] 
> pollondraft-he-mpls-tp-csf-03.txt
> 
> 
> 
> > -----Original Message-----
> > From: [e-mail] [mailto:[e-mail]] On Behalf
> Of
> > Yuanlong Jiang
> > Sent: Wednesday, December 01, 2010 8:19 PM
> > To: John E Drake; Sprecher, Nurit (NSN - IL/Hod HaSharon); Loa
> Andersson;
> > [e-mail]; [e-mail]; [e-mail]; MPLS-TP ad hoc team
> > Subject: Re: [mpls] [PWE3] [AHMPLS-TP] Re: [mpls-tp]
> pollondraft-he-mpls-
> > tp-csf-03.txt
> > 
> > John,
> > 
> > Typically, IP will only detect a failure in a time scale of minutes.
> 
> I must not understand the point you're making.  For one 
> thing, BFD is quite often configured to detect failures in 
> significantly less than a minute.
> 
> > That is one reason why MPLS-TP OAM and Protection & Switching is
> needed.
> 
> What are others?
> 
> > I am not sure which mechanism in MPLS provides the CSF-like
> capability,
> > could you give more hints?
> 
> Even regular IGP/LDP hellos (no special tuning, no BFD) very 
> frequently are configured to detect failures in far less than 
> "minutes".
> 
> 
> 
> 
> 
> eric
> 
> > 
> > Thanks
> > Yuanlong
> > 
> > ----- Original Message -----
> > From: "John E Drake" <[e-mail]>
> > To: "Sprecher, Nurit (NSN - IL/Hod HaSharon)"
> <[e-mail]>om>;
> > "Yuanlong Jiang" <[e-mail]>om>; "Loa Andersson" <[e-mail]>nu>; 
> > <[e-mail]>rg>; <[e-mail]>rg>; <[e-mail]>rg>; 
> "MPLS-TP ad hoc 
> > team"
> > <[e-mail]>
> > Sent: Wednesday, December 01, 2010 9:29 PM
> > Subject: RE: [PWE3] [AHMPLS-TP] Re: [mpls-tp] poll
> ondraft-he-mpls-tp-csf-
> > 03.txt
> > 
> > 
> > > Nurit,
> > >
> > > As I understand the original requirement from Malcolm Betts, this 
> > > capability is required for those cases in which a client is unable
> to
> > > detect the failure of its peer.  In MPLS-TP, we have 
> three clients, 
> > > PW, IP, and MPLS, and I am quite sure that IP and MPLS 
> clients can 
> > > take care of themselves wrt detecting peer failure.
> > >
> > > Thanks,
> > >
> > > John
> > >
> > > Sent from my iPhone
> > >
> > >> -----Original Message-----
> > >> From: Sprecher, Nurit (NSN - IL/Hod HaSharon) 
> > >> [mailto:[e-mail]]
> > >> Sent: Wednesday, December 01, 2010 4:47 AM
> > >> To: John E Drake; Yuanlong Jiang; Loa Andersson; [e-mail];
> mpls-
> > >> [e-mail]; [e-mail]; MPLS-TP ad hoc team
> > >> Subject: RE: [PWE3] [AHMPLS-TP] Re: [mpls-tp] poll
> > >> ondraft-he-mpls-tp- csf-03.txt
> > >>
> > >> But what about other client services... e.g. adapted by 
> service-LSP 
> > >> and not by PWE3?
> > >>
> > >> -----Original Message-----
> > >> From: [e-mail] [mailto:[e-mail]] On
> Behalf
> > >> Of ext John E Drake
> > >> Sent: Wednesday, December 01, 2010 2:35 PM
> > >> To: Yuanlong Jiang; Loa Andersson; [e-mail]; 
> [e-mail]; 
> > >> [e-mail]; MPLS-TP ad hoc team
> > >> Subject: Re: [PWE3] [AHMPLS-TP] Re: [mpls-tp] poll 
> > >> ondraft-he-mpls-tp-csf-03.txt
> > >>
> > >> I am not convinced.  It seems like it belongs in the Pseudo Wire 
> > >> application, which already has this capability.
> > >>
> > >> Sent from my iPhone
> > >>
> > >>
> > >> > -----Original Message-----
> > >> > From: Yuanlong Jiang [mailto:[e-mail]]
> > >> > Sent: Wednesday, December 01, 2010 1:07 AM
> > >> > To: Loa Andersson; [e-mail]; [e-mail];
> [e-mail];
> > >> > MPLS-TP ad hoc team
> > >> > Subject: [AHMPLS-TP] Re: [mpls-tp] poll on 
> draft-he-mpls-tp-csf-
> > >> 03.txt
> > >> >
> > >> > Support.
> > >> >
> > >> > I believe this mechanism is needed in MPLS-TP.
> > >> >
> > >> > Thanks
> > >> > Yuanlong
> > >> >
> > >> > ----- Original Message -----
> > >> > From: "Loa Andersson" <[e-mail]>
> > >> > To: <[e-mail]>rg>; <[e-mail]>rg>; <[e-mail]>rg>;
> "MPLS-TP
> > >> > ad hoc team" <[e-mail]>
> > >> > Sent: Thursday, November 18, 2010 7:56 PM
> > >> > Subject: [mpls-tp] poll on draft-he-mpls-tp-csf-03.txt
> > >> >
> > >> >
> > >> > > all,
> > >> > >
> > >> > > this is to start a two week poll on making
> > >> > >
> > >> > > 
> http://www.ietf.org/internet-drafts/draft-he-mpls-tp-csf-03.txt
> > >> > >
> > >> > > a mpls working group document.
> > >> > >
> > >> > > Please send comments support/not support to the mpls-tp
> maililng
> > >> > list.
> > >> > >
> > >> > > The poll ends Thursday Dec 2, 2010.
> > >> > >
> > >> > > /Loa
> > >> > > --
> > >> > >
> > >> > >
> > >> > > Loa Andersson                         email:
> > >> > [e-mail]
> > >> > > Sr Strategy and Standards Manager            [e-mail]
> > >> > > Ericsson Inc                          phone: [phone]
> > >> > >                                              +46 767 
> 72 92 13 
> > >> > > _______________________________________________
> > >> > > mpls-tp mailing list
> > >> > > [e-mail]
> > >> > > https://www.ietf.org/mailman/listinfo/mpls-tp
> > >>
> > >> _______________________________________________
> > >> pwe3 mailing list
> > >> [e-mail]
> > >> https://www.ietf.org/mailman/listinfo/pwe3
> > >
> > 
> > _______________________________________________
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