Domain Subobjects for Resource Reservation Protocol - Traffic Engineering (RSVP-TE)
RFC 7898

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Internet Engineering Task Force (IETF)                          D. Dhody
Request for Comments: 7898                                      U. Palle
Category: Experimental                                      V. Kondreddy
ISSN: 2070-1721                                      Huawei Technologies
                                                             R. Casellas
                                                                    CTTC
                                                               June 2016

                           Domain Subobjects
   for Resource Reservation Protocol - Traffic Engineering (RSVP-TE)

Abstract

   The Resource Reservation Protocol - Traffic Engineering (RSVP-TE)
   specification and the Generalized Multiprotocol Label Switching
   (GMPLS) extensions to RSVP-TE allow abstract nodes and resources to
   be explicitly included in a path setup.  Further, Exclude Route
   extensions to RSVP-TE allow abstract nodes and resources to be
   explicitly excluded in a path setup.

   This document specifies new subobjects to include or exclude
   Autonomous Systems (ASes), which are identified by a 4-byte AS
   number, and Interior Gateway Protocol (IGP) areas during path setup.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for examination, experimental implementation, and
   evaluation.

   This document defines an Experimental Protocol for the Internet
   community.  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 7841.

   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/rfc7898.

Dhody, et al.                 Experimental                      [Page 1]
RFC 7898              Domain Subobjects for RSVP-TE            June 2016

Copyright Notice

   Copyright (c) 2016 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
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   date of publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Scope . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Subobjects for Domains  . . . . . . . . . . . . . . . . . . .   5
     3.1.  Domains . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Explicit Route Object (ERO) Subobjects  . . . . . . . . .   6
       3.2.1.  Autonomous System . . . . . . . . . . . . . . . . . .   6
       3.2.2.  IGP Area  . . . . . . . . . . . . . . . . . . . . . .   7
       3.2.3.  Mode of Operation . . . . . . . . . . . . . . . . . .   8
     3.3.  Exclude Route Object (XRO) Subobjects . . . . . . . . . .   9
       3.3.1.  Autonomous System . . . . . . . . . . . . . . . . . .   9
       3.3.2.  IGP Area  . . . . . . . . . . . . . . . . . . . . . .   9
       3.3.3.  Mode of Operation . . . . . . . . . . . . . . . . . .  10
     3.4.  Explicit Exclusion Route Subobject  . . . . . . . . . . .  10
   4.  Interaction with Path Computation Element (PCE) . . . . . . .  10
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
     5.1.  New Subobjects  . . . . . . . . . . . . . . . . . . . . .  11
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  13
   Appendix A.  Examples . . . . . . . . . . . . . . . . . . . . . .  14
     A.1.  Inter-Area LSP Path Setup . . . . . . . . . . . . . . . .  14
     A.2.  Inter-AS LSP Path Setup . . . . . . . . . . . . . . . . .  15
       A.2.1.  Example 1 . . . . . . . . . . . . . . . . . . . . . .  15
       A.2.2.  Example 2 . . . . . . . . . . . . . . . . . . . . . .  16
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18