Forwarding and Control Element Separation (ForCES) Applicability Statement
RFC 6041

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Internet Engineering Task Force (IETF)                         A. Crouch
Request for Comments: 6041                                   H. Khosravi
Category: Informational                                            Intel
ISSN: 2070-1721                                            A. Doria, Ed.
                                                                     LTU
                                                                 X. Wang
                                                                  Huawei
                                                                K. Ogawa
                                                         NTT Corporation
                                                            October 2010

           Forwarding and Control Element Separation (ForCES)
                        Applicability Statement

Abstract

   The Forwarding and Control Element Separation (ForCES) protocol
   defines a standard framework and mechanism for the interconnection
   between control elements and forwarding elements in IP routers and
   similar devices.  In this document we describe the applicability of
   the ForCES model and protocol.  We provide example deployment
   scenarios and functionality, as well as document applications that
   would be inappropriate for ForCES.

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/rfc6041.

Crouch, et al.                Informational                     [Page 1]
RFC 6041             ForCES Applicability Statement         October 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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Crouch, et al.                Informational                     [Page 2]
RFC 6041             ForCES Applicability Statement         October 2010

Table of Contents

   1. Introduction ....................................................3
   2. Purpose .........................................................4
   3. Terminology .....................................................4
   4. Applicability to IP Networks ....................................4
      4.1. Applicable Services ........................................5
           4.1.1. Association, Capability Discovery, and
                  Information Exchange ................................5
           4.1.2. Topology Information Exchange .......................6
           4.1.3. Configuration .......................................6
           4.1.4. Routing Exchange ....................................6
           4.1.5. QoS Capabilities Exchange and Configuration .........7
           4.1.6. Security Exchange ...................................7
           4.1.7. Filtering Exchange and Firewalls ....................7
           4.1.8. Encapsulation/Tunneling Exchange ....................7
           4.1.9. NAT and Application-Level Gateways ..................7
           4.1.10. Measurement and Accounting .........................7
           4.1.11. Diagnostics ........................................8
           4.1.12. Redundancy and Failover ............................8