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

["LEVRAU, LIEVEN (LIEVEN)" <[e-mail]>]

Nope - ip can detect it via BFD on scale way below minutes.
What you are refereeing to is the IGP control plane time out.
The issue is to detect failures accurately and fast in the data plane when there is no control plane.
./
Lieven

-----Original Message-----
From: [e-mail] [mailto:[e-mail]] On Behalf Of Yuanlong Jiang
Sent: 02 December 2010 02:19
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: [PWE3] [AHMPLS-TP] Re: [mpls-tp] poll ondraft-he-mpls-tp-csf-03.txt

John,

Typically, IP will only detect a failure in a time scale of minutes.
That is one reason why MPLS-TP OAM and Protection & Switching is needed.
I am not sure which mechanism in MPLS provides the CSF-like capability, 
could you give more hints?

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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