Re: [Lime] OAM Initiative: Situation

Benoit Claise <bclaise@cisco.com> Tue, 23 September 2014 16:05 UTC

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Date: Tue, 23 Sep 2014 18:05:06 +0200
From: Benoit Claise <bclaise@cisco.com>
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To: "Xialiang (Frank)" <frank.xialiang@huawei.com>
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Subject: Re: [Lime] OAM Initiative: Situation
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Hi Frank,

See my reply in-line.
>
> Hi Benoit,
>
> I agree with your initial conclusion.
>
> I still have some further questions as inline, hoping to get your opinion.
>
> Thanks!
>
> B.R.
>
> Frank
>
> *From:*Lime [mailto:lime-bounces@ietf.org] *On Behalf Of *Benoit Claise
> *Sent:* Tuesday, September 16, 2014 6:58 PM
> *To:* lime@ietf.org
> *Subject:* [Lime] OAM Initiative: Situation
>
> Dear all,
>
> LIME is a new mailing list, transitioning from TIME (in case you want 
> to read the archives).
> As one of the first email to the list, let me summarize the current 
> situation.
>
> During the last IETF meeting, there were various discussions with 
> different audiences regarding this OAM initiative.
>
> Here is what we concluded:
> 1. Building an OAM generic protocol is impractical for multiple reasons.
> 2. It is desirable to have an unified view of OAM information at each 
> layer, in order to correlate information, and detect the faulty 
> element in the network path
> 3. Consistent configuration, reporting, and presentation for the OAM 
> mechanisms makes sense.
> 4. Using YANG as a modeling language is a logical choice. Note that 
> there are already some efforts in that direction
>
> */[Frank] : Before we define any YANG model for this objective, does 
> it need some basic Information Model definition firstly? Is the 
> Information model in the scope of this work?/*
>
[benoit]
This is a very good question.
In my charter reviews since I became OPS AD, I've been stressing the 
need to have an information model before specifying the data model(s), 
especially for WGs that still need to determine their management 
requirements:
     fault, configuration, accounting, performance?
     push/pull?
     OAM or not?
     ...
Now, the LIME work is special: it's specific to configuration, and for 
configuration there is a primary language: YANG.
The growing interest in YANG throughout the industry proves YANG is the 
right way to go.
So I'm wondering if, in _this __SPECIFIC _(potential) WG, it's necessary 
to go with an information model first? I would say no, but could be 
convinced otherwise.

> *//*
>
>
> 5. A set of guidelines for future OAM developments would be welcome 
> for consistency sake
>
> */[Frank] : What kind of guidelines does here mean?  Does the future 
> OAM developments only refer to OAM in management plane, or also 
> include OAM in data plane? I think maybe both./*
>
[Benoit] I would say both

Regards, Benoit
>
> We also believe that there is sufficient interest to start working on 
> a charter proposal.
>
> Regards, Joel and Benoit (OPS ADs)
>

[Lime] OAM Initiative: Situation Benoit Claise
[Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1 Romascanu, Dan (Dan)
Re: [Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1 Stewart Bryant
Re: [Lime] LIME Charter Propsosal v1 Ronald Bonica
Re: [Lime] LIME Charter Propsosal v1 Susan Hares
Re: [Lime] LIME Charter Propsosal v1 Stewart Bryant
Re: [Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1 Jouni Korhonen
Re: [Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1 Yuji Tochio
Re: [Lime] LIME Charter Propsosal v1 Qin Wu
Re: [Lime] LIME Charter Propsosal v1--Charter Des… Qin Wu
Re: [Lime] OAM Initiative: Situation Xialiang (Frank)
Re: [Lime] LIME Charter Propsosal v1 Xialiang (Frank)
Re: [Lime] OAM Initiative: Situation Benoit Claise