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

["Eric Osborne (eosborne)" <[e-mail]>]

> -----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]
> >> > >                                              [phone]
> >> > > _______________________________________________
> >> > > 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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