RSVP-TE Signaling Extension for LSP Handover from the Management Plane to the Control Plane in a GMPLS-Enabled Transport Network
RFC 5852

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Internet Engineering Task Force (IETF)                       D. Caviglia
Request for Comments: 5852                                 D. Ceccarelli
Category: Standards Track                                    D. Bramanti
ISSN: 2070-1721                                                 Ericsson
                                                                   D. Li
                                                     Huawei Technologies
                                                             S. Bardalai
                                                         Fujitsu Network
                                                              April 2010

 RSVP-TE Signaling Extension for LSP Handover from the Management Plane
       to the Control Plane in a GMPLS-Enabled Transport Network

Abstract

   In a transport network scenario, Data Plane connections controlled by
   either a Generalized Multiprotocol Label Switching (GMPLS) Control
   Plane (Soft Permanent Connections - SPC) or a Management System
   (Permanent Connections - PC) may independently coexist.  The ability
   of transforming an existing PC into an SPC and vice versa -- without
   actually affecting Data Plane traffic being carried over it -- is a
   requirement.  The requirements for the conversion between permanent
   connections and switched connections in a GMPLS Network are defined
   in RFC 5493.

   This memo describes an extension to GMPLS Resource Reservation
   Protocol - Traffic Engineering (RSVP-TE) signaling that enables the
   transfer of connection ownership between the Management and the
   Control Planes.  Such a transfer is referred to as a Handover.  This
   document defines all Handover-related procedures.  This includes the
   handling of failure conditions and subsequent reversion to original
   state.  A basic premise of the extension is that the Handover
   procedures must never impact an already established Data Plane
   connection.

Caviglia, et al.             Standards Track                    [Page 1]
RFC 5852           RSVP-TE Ext for MP2CP LSP Handover         April 2010

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/rfc5852.

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.

Caviglia, et al.             Standards Track                    [Page 2]
RFC 5852           RSVP-TE Ext for MP2CP LSP Handover         April 2010

Table of Contents

   1. Introduction ....................................................4
      1.1. Dedication .................................................4
   2. Terminology .....................................................4
   3. Motivation ......................................................4
   4. Procedures ......................................................5
      4.1. MP-to-CP Handover: LSP Ownership Transfer from
           Management Plane to Control Plane ..........................6
      4.2. MP-to-CP Handover Procedure Failure Handling ...............7
           4.2.1. MP-to-CP Handover Failure - Path Failure ............8
                  4.2.1.1. MP-to-CP Handover Failure - Path
                           Message and Data Plane Failure .............8
                  4.2.1.2. MP-to-CP Handover Failure - Path
                           Message and Communication Failure ..........8
           4.2.2. MP-to-CP Handover Failure - Resv Error ..............9
                  4.2.2.1. MP-to-CP Handover Failure - Resv
                           Error and Data Plane Failure ...............9
                  4.2.2.2. MP-to-CP Handover Failure - Resv
                           Error and Communication Failure ...........10
                  4.2.2.3. MP-to-CP Handover Failure - Node
                           Graceful Restart ..........................12
      4.3. CP-to-MP Handover: LSP Ownership Transfer from