Generalized MPLS (GMPLS) Data Channel Switching Capable (DCSC) and Channel Set Label Extensions
RFC 6002

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Internet Engineering Task Force (IETF)                         L. Berger
Request for Comments: 6002                                          LabN
Updates: 3471, 3473, 3945, 4202, 4203, 5307                     D. Fedyk
Category: Standards Track                                 Alcatel-Lucent
ISSN: 2070-1721                                             October 2010

     Generalized MPLS (GMPLS) Data Channel Switching Capable (DCSC)
                    and Channel Set Label Extensions

Abstract

   This document describes two technology-independent extensions to
   Generalized Multi-Protocol Label Switching (GMPLS).  The first
   extension defines the new switching type Data Channel Switching
   Capable.  Data Channel Switching Capable interfaces are able to
   support switching of the whole digital channel presented on single
   channel interfaces.  The second extension defines a new type of
   generalized label and updates related objects.  The new label is
   called the Generalized Channel_Set Label and allows more than one
   data plane label to be controlled as part of a Label Switched Path
   (LSP).

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on
   Internet Standards is available in 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/rfc6002.

Berger & Fedyk               Standards Track                    [Page 1]
RFC 6002              GMPLS DCSC Channel Extensions         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.

Table of Contents

   1. Introduction ....................................................2
      1.1. Conventions Used in This Document ..........................3
   2. Data Channel Switching ..........................................3
      2.1. Compatibility ..............................................4
   3. Generalized Channel_Set Label Related Formats ...................4
      3.1. Generalized Channel_Set LABEL_REQUEST Object ...............4
      3.2. Generalized Channel_Set LABEL Object .......................4
      3.3. Other Label-Related Objects ................................7
      3.4. Compatibility ..............................................7
   4. IANA Considerations .............................................8
      4.1. Data Channel Switching Type ................................8
      4.2. Generalized Channel_Set LABEL_REQUEST Object ...............8
      4.3. Generalized Channel_Set LABEL Object .......................8
   5. Security Considerations .........................................9
   6. References ......................................................9
      6.1. Normative References .......................................9
      6.2. Informative References ....................................10
   Acknowledgments ...................................................10

1.  Introduction

   This document describes two technology-independent extensions to
   Generalized Multi-Protocol Label Switching (GMPLS).  Both of these
   extensions were initially defined in the context of Ethernet
   services, see [RFC6004] and [RFC6005], but are generic in nature and
   may be useful to any switching technology controlled via GMPLS.

   The first extension defines a new switching type, which is called
   Data Channel Switching Capable (DCSC).  DCSC interfaces are able to
   support switching of the whole digital channel presented on single
   channel interfaces.  The second extension defines a new type of

Berger & Fedyk               Standards Track                    [Page 2]
RFC 6002              GMPLS DCSC Channel Extensions         October 2010

   generalized label and updates related objects.  The new label is
   called the Generalized Channel_Set Label and allows more than one
   data plane label to be controlled as part of a GMPLS Label Switched
   Path (LSP).

1.1.  Conventions Used in This Document

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",