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

Yuanlong Jiang <yljiang@huawei.com> Thu, 02 December 2010 01:17 UTC

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Date: Thu, 02 Dec 2010 09:18:59 +0800
From: Yuanlong Jiang <yljiang@huawei.com>
To: John E Drake <jdrake@juniper.net>, "Sprecher, Nurit (NSN - IL/Hod HaSharon)" <nurit.sprecher@nsn.com>, Loa Andersson <loa@pi.nu>, mpls@ietf.org, mpls-tp@ietf.org, pwe3@ietf.org, MPLS-TP ad hoc team <ahmpls-tp@lists.itu.int>
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Subject: Re: [mpls-tp] [PWE3] [AHMPLS-TP] Re: poll ondraft-he-mpls-tp-csf-03.txt
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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" <jdrake@juniper.net>
To: "Sprecher, Nurit (NSN - IL/Hod HaSharon)" <nurit.sprecher@nsn.com>om>; 
"Yuanlong Jiang" <yljiang@huawei.com>om>; "Loa Andersson" <loa@pi.nu>nu>; 
<mpls@ietf.org>rg>; <mpls-tp@ietf.org>rg>; <pwe3@ietf.org>rg>; "MPLS-TP ad hoc team" 
<ahmpls-tp@lists.itu.int>
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:nurit.sprecher@nsn.com]
>> Sent: Wednesday, December 01, 2010 4:47 AM
>> To: John E Drake; Yuanlong Jiang; Loa Andersson; mpls@ietf.org; mpls-
>> tp@ietf.org; pwe3@ietf.org; 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: pwe3-bounces@ietf.org [mailto:pwe3-bounces@ietf.org] On Behalf Of
>> ext John E Drake
>> Sent: Wednesday, December 01, 2010 2:35 PM
>> To: Yuanlong Jiang; Loa Andersson; mpls@ietf.org; mpls-tp@ietf.org;
>> pwe3@ietf.org; 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:yljiang@huawei.com]
>> > Sent: Wednesday, December 01, 2010 1:07 AM
>> > To: Loa Andersson; mpls@ietf.org; mpls-tp@ietf.org; pwe3@ietf.org;
>> > 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" <loa@pi.nu>
>> > To: <mpls@ietf.org>rg>; <mpls-tp@ietf.org>rg>; <pwe3@ietf.org>rg>; "MPLS-TP ad
>> > hoc
>> > team" <ahmpls-tp@lists.itu.int>
>> > 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:
>> > loa.andersson@ericsson.com
>> > > Sr Strategy and Standards Manager            loa@pi.nu
>> > > Ericsson Inc                          phone: +46 10 717 52 13
>> > >                                              +46 767 72 92 13
>> > > _______________________________________________
>> > > mpls-tp mailing list
>> > > mpls-tp@ietf.org
>> > > https://www.ietf.org/mailman/listinfo/mpls-tp
>>
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