Service Function Chaining (SFC) Operation, Administration and Maintenance (OAM) Framework
draft-ietf-sfc-oam-framework-04

Document Type Active Internet-Draft (sfc WG)
Last updated 2018-03-05
Replaces draft-aldrin-sfc-oam-framework
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Internet Engineering Task Force                                S. Aldrin
Internet-Draft                                                    Google
Intended status: Informational                         C. Pignataro, Ed.
Expires: September 6, 2018                                 N. Kumar, Ed.
                                                                   Cisco
                                                                N. Akiya
                                                     Big Switch Networks
                                                             R. Krishnan
                                                             A. Ghanwani
                                                                    Dell
                                                           March 5, 2018

                    Service Function Chaining (SFC)
       Operation, Administration and Maintenance  (OAM) Framework
                    draft-ietf-sfc-oam-framework-04

Abstract

   This document provides a reference framework for Operations,
   Administration and Maintenance (OAM) for Service Function Chaining
   (SFC).

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 6, 2018.

Aldrin, et al.          Expires September 6, 2018               [Page 1]
Internet-Draft              SFC OAM Framework                 March 2018

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Document Scope  . . . . . . . . . . . . . . . . . . . . .   3
   2.  SFC Layering Model  . . . . . . . . . . . . . . . . . . . . .   4
   3.  SFC OAM Components  . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Service Function Component  . . . . . . . . . . . . . . .   6
       3.1.1.  Service Function Availability . . . . . . . . . . . .   6
       3.1.2.  Service Function Performance Measurement  . . . . . .   7
     3.2.  Service Function Chain Component  . . . . . . . . . . . .   7
       3.2.1.  Service Function Chain Availability . . . . . . . . .   7
       3.2.2.  Service Function Chain Performance Measurement  . . .   8
     3.3.  Classifier Component  . . . . . . . . . . . . . . . . . .   8
   4.  SFC OAM Functions . . . . . . . . . . . . . . . . . . . . . .   8
     4.1.  Connectivity Functions  . . . . . . . . . . . . . . . . .   8
     4.2.  Continuity Functions  . . . . . . . . . . . . . . . . . .   9
     4.3.  Trace Functions . . . . . . . . . . . . . . . . . . . . .   9
     4.4.  Performance Measurement Function  . . . . . . . . . . . .  10
   5.  Gap Analysis  . . . . . . . . . . . . . . . . . . . . . . . .  10
     5.1.  Existing OAM Functions  . . . . . . . . . . . . . . . . .  10
     5.2.  Missing OAM Functions . . . . . . . . . . . . . . . . . .  11
     5.3.  Required OAM Functions  . . . . . . . . . . . . . . . . .  11
   6.  SFC OAM Model . . . . . . . . . . . . . . . . . . . . . . . .  12
     6.1.  SFC OAM Packet Marker . . . . . . . . . . . . . . . . . .  12
     6.2.  OAM Packet Processing and Forwarding Semantic . . . . . .  12
     6.3.  OAM Function Types  . . . . . . . . . . . . . . . . . . .  13
     6.4.  OAM Toolset applicability . . . . . . . . . . . . . . . .  13
       6.4.1.  ICMP Applicability  . . . . . . . . . . . . . . . . .  13
       6.4.2.  Seamless BFD Applicability  . . . . . . . . . . . . .  13
       6.4.3.  In-Situ OAM . . . . . . . . . . . . . . . . . . . . .  14
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