[secdir] [new-work] WG Review: Layer Independent OAM Management in the Multi-Layer Environment (lime)

IESG Secretary <iesg-secretary@ietf.org> Fri, 03 October 2014 17:36 UTC

Return-Path: <new-work-bounces@ietf.org>
X-Original-To: secdir@ietf.org
Delivered-To: secdir@ietfa.amsl.com
Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id E0E901A87A7; Fri, 3 Oct 2014 10:36:35 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ietf.org; s=ietf1; t=1412357795; bh=vTVGHibeidpooRPBXS8/gjNgmdBEwrcRrV9rwO+tQy8=; h=MIME-Version:From:To:Message-ID:Date:Subject:Reply-To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Content-Type:Content-Transfer-Encoding:Sender; b=sI7969umRXRr+twBayOQPBd2/yG1Q736YAYrBQ3vM4RCgRHKuPMeYhZfkAKKhGaa0 6V702h1yhj9wLk2OOkHBqUjxfodDa7C2mBdY4wRl5Fs2ilMkjKynaOXtYBt7yDa4a1 bSeOMIyBFJ1Qxhk7NKR9WEXXugup6yqYTFFIXr44=
X-Original-To: new-work@ietfa.amsl.com
Delivered-To: new-work@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com []) by ietfa.amsl.com (Postfix) with ESMTP id 49BE71A87A9; Fri, 3 Oct 2014 10:36:32 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9] autolearn=ham
Received: from mail.ietf.org ([]) by localhost (ietfa.amsl.com []) (amavisd-new, port 10024) with ESMTP id ykd5QyhAoL1L; Fri, 3 Oct 2014 10:36:26 -0700 (PDT)
Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id 7F4641A877E; Fri, 3 Oct 2014 10:36:26 -0700 (PDT)
MIME-Version: 1.0
From: IESG Secretary <iesg-secretary@ietf.org>
To: new-work@ietf.org
X-Test-IDTracker: no
X-IETF-IDTracker: 5.6.3.p3
Auto-Submitted: auto-generated
Precedence: bulk
Message-ID: <20141003173626.20715.43867.idtracker@ietfa.amsl.com>
Date: Fri, 03 Oct 2014 10:36:26 -0700
Archived-At: http://mailarchive.ietf.org/arch/msg/new-work/ZrLw9WuyDqvunqAVGsAtVL54QNU
X-BeenThere: new-work@ietf.org
X-Mailman-Version: 2.1.15
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: new-work-bounces@ietf.org
Sender: new-work <new-work-bounces@ietf.org>
Archived-At: http://mailarchive.ietf.org/arch/msg/secdir/uzLKFEZjMHIMISep4E6aoLvOAGE
X-Mailman-Approved-At: Fri, 03 Oct 2014 10:46:02 -0700
Subject: [secdir] [new-work] WG Review: Layer Independent OAM Management in the Multi-Layer Environment (lime)
X-BeenThere: secdir@ietf.org
Reply-To: iesg@ietf.org
List-Id: Security Area Directorate <secdir.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/secdir>, <mailto:secdir-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/secdir/>
List-Post: <mailto:secdir@ietf.org>
List-Help: <mailto:secdir-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/secdir>, <mailto:secdir-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 03 Oct 2014 17:36:36 -0000

A new IETF working group has been proposed in the Operations and
Management Area. The IESG has not made any determination yet. The
following draft charter was submitted, and is provided for informational
purposes only. Please send your comments to the IESG mailing list (iesg
at ietf.org) by 2014-10-13.

Layer Independent OAM Management in the Multi-Layer Environment (lime)
Current Status: Proposed WG

Assigned Area Director:
  Benoit Claise <bclaise@cisco.com>

Mailing list
  Address: lime@ietf.org
  To Subscribe: https://www.ietf.org/mailman/listinfo/lime


Network Operators are increasingly challenged with operational and
management limitations in network deployments due to Operations,
Administration, and Maintenance (OAM) operating at different
administrative and technology layers. This problem is exacerbated by the
lack of a common architectural OAM management in those different layers
and protocols. New work on network virtualization further complicates the
layering model and the problems of coordinating OAM between layers and

The absence of a common approach to OAM management has made it difficult
for operators to:
- Suppress large numbers of unnecessary alarms and notifications related
to defects and failures arising in lower layers and visible in each
higher layer
- Quickly identify root causes of network failures 
- Coordinate end-to-end performance measurement with the results of
performance monitoring at different layers in the network
- Correlate defects, faults, and network failures between the different
layers to improve efficiency of defect and fault localization and provide
better OAM visibility.

The LIME working group will concentrate on the operational challenges in
consistent handling of end-to-end OAM and coordination of OAM within
underlying network layers. This work will enable consistent
configuration, reporting, and presentation for the OAM mechanisms used to
manage the network, regardless of the layers and technologies. It will
also produce architectural guidelines for the development of new OAM
tools and protocols in both management plane and data plane so that they
may be coherent with these mechanisms and more easily integrated from an
operational points of view.

The working group will work on the following deliverables:

- YANG data model(s) for generic layer-independent and
technology-independent configuration, reporting and presentation for OAM

- An architecture for OAM that can be used as guidance by other IETF
working groups developing new OAM protocols or modifying existing OAM
protocols, at any layer and for any technology. This guidance will cover
both the management and data planes. Existing OAM architectures will be

- Applicability document: The YANG model(s) specified in this working
group must be usable and extensible by the existing OAM technologies.
This usability and extensibility must be demonstrated, for example with
IP Ping, traceroute, BFD, and LSP Ping. Note the technology-specific data
model extensions should ideally be worked on in the respective working

The working group will explore and document use-cases for converged
management of OAM in multi-layer and multi-technology networks that
triggered this work. The use cases will consider scenarios that include
(but are not limited to) those that rely upon a centralized control point
responsible for the overall OAM management and those that assume the
delegation of layer-specific OAM management control points. The working
group will decide later whether the use case document needs to be
published as an RFC.

If the working group finds it necessary to work on an information model
before the data model, it might do so. The working group will decide
later whether the information model needs to be published as an RFC.

The initial scope is restricted to a single administrative domain and may
be extended for inter-domain scenarios in future as and when a need

The working group will not develop any new OAM protocols.

The LIME WG is not chartered to work on information or data models
specific to any data plane or forwarding plane technology that is
developed outside of the IETF. However, it is the intention that the
generic information and data models produced by the working group should
be applicable to multiple layers and technologies in a technology
agnostic fashion. Therefore, it is anticipated that the working group
will closely coordinate its activities with other SDOs (including, but
not limited to the ITU-T, MEF, IEEE, BBF and 3GPP) to ensure that the
generic models are harmonized with work done in those SDOs and are
applicable to many technologies.

Feb 2015  - Adopt the WG draft on YANG data model(s)
May 2015  - Adopt the WG draft on LIME Architecture
Aug 2015  - Adopt the WG draft for Applicability of the generic model
Sep 2015  - Submit the YANG model(s) document to IESG as a Proposed
Standards RFC
Nov 2015  - Submit the Architecture document to IESG for review as an
informational RFC
Apr 2016  - Sumit the Applicability document to IESG for review as an
Informational RFC
Apr 2016  - Recharter or conclude

new-work mailing list