Implementation Report for Forwarding and Control Element Separation (ForCES)
RFC 6053

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Internet Engineering Task Force (IETF)                     E. Haleplidis
Request for Comments: 6053                          University of Patras
Category: Informational                                         K. Ogawa
ISSN: 2070-1721                                          NTT Corporation
                                                                 W. Wang
                                           Zhejiang Gongshang University
                                                           J. Hadi Salim
                                                       Mojatatu Networks
                                                           November 2010

                       Implementation Report for
           Forwarding and Control Element Separation (ForCES)

Abstract

   Forwarding and Control Element Separation (ForCES) defines an
   architectural framework and associated protocols to standardize
   information exchange between the control plane and the forwarding
   plane in a ForCES network element (ForCES NE).  RFC 3654 has defined
   the ForCES requirements, and RFC 3746 has defined the ForCES
   framework.

   This document is an implementation report for the ForCES Protocol,
   Model, and the Stream Control Transmission Protocol-based Transport
   Mapping Layer (SCTP TML) documents, and includes a report on
   interoperability testing and the current state of ForCES
   implementations.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6053.

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RFC 6053            Implementation Report for ForCES       November 2010

Copyright Notice

   Copyright (c) 2010 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
   (http://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
   to this document.  Code Components extracted from this document must
   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.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  ForCES Protocol  . . . . . . . . . . . . . . . . . . . . .  4
     1.2.  ForCES Model . . . . . . . . . . . . . . . . . . . . . . .  4
     1.3.  Transport Mapping Layer  . . . . . . . . . . . . . . . . .  4
   2.  Terminology and Conventions  . . . . . . . . . . . . . . . . .  4
     2.1.  Requirements Language  . . . . . . . . . . . . . . . . . .  4
     2.2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . .  5
   3.  Summary  . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
   4.  Methodology  . . . . . . . . . . . . . . . . . . . . . . . . .  6
   5.  Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . .  7
   6.  Detail Section . . . . . . . . . . . . . . . . . . . . . . . .  7
     6.1.  Implementation Experience  . . . . . . . . . . . . . . . .  7
       6.1.1.  ForCES Protocol Features . . . . . . . . . . . . . . .  9
         6.1.1.1.  Protocol Messages  . . . . . . . . . . . . . . . .  9
         6.1.1.2.  MainHeader Handling  . . . . . . . . . . . . . . . 10
         6.1.1.3.  TLV Handling . . . . . . . . . . . . . . . . . . . 11
         6.1.1.4.  Operation Types Supported  . . . . . . . . . . . . 12
         6.1.1.5.  ForCES Protocol Advanced Features  . . . . . . . . 13
       6.1.2.  ForCES Model Features  . . . . . . . . . . . . . . . . 14
         6.1.2.1.  Basic Atomic Types Supported . . . . . . . . . . . 14
         6.1.2.2.  Compound Types Supported . . . . . . . . . . . . . 15
         6.1.2.3.  LFBs Supported . . . . . . . . . . . . . . . . . . 15
       6.1.3.  ForCES SCTP TML Features . . . . . . . . . . . . . . . 19
         6.1.3.1.  TML Priority Ports . . . . . . . . . . . . . . . . 19
         6.1.3.2.  Message Handling at Specific Priorities  . . . . . 19
         6.1.3.3.  TML Security Feature . . . . . . . . . . . . . . . 20