Problem Statement and Architecture for Information Exchange Between Interconnected Traffic Engineered Networks
draft-ietf-teas-interconnected-te-info-exchange-04

The information below is for an old version of the document
Document Type Active Internet-Draft (teas WG)
Authors Adrian Farrel  , John Drake  , Nabil Bitar  , George Swallow  , Daniele Ceccarelli  , Xian Zhang 
Last updated 2016-03-22 (latest revision 2016-03-20)
Replaces draft-ietf-ccamp-interconnected-te-info-exchange
Stream IETF
Intended RFC status Best Current Practice
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Stream WG state Submitted to IESG for Publication
Document shepherd Lou Berger
Shepherd write-up Show (last changed 2016-03-22)
IESG IESG state Publication Requested
Consensus Boilerplate Yes
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Responsible AD Deborah Brungard
Send notices to "Lou Berger" <lberger@labn.net>
Network Working Group                                    A. Farrel (Ed.)
Internet-Draft                                                  J. Drake
Intended status: Best Current Practice                  Juniper Networks
Expires: September 20, 2016
                                                                N. Bitar
                                                          Nuage Networks

                                                              G. Swallow
                                                     Cisco Systems, Inc.

                                                           D. Ceccarelli
                                                                Ericsson

                                                                X. Zhang
                                                                  Huawei
                                                          March 20, 2016

     Problem Statement and Architecture for Information Exchange
         Between Interconnected Traffic Engineered Networks

       draft-ietf-teas-interconnected-te-info-exchange-04.txt

Abstract

   In Traffic Engineered (TE) systems, it is sometimes desirable to
   establish an end-to-end TE path with a set of constraints (such as
   bandwidth) across one or more network from a source to a destination.
   TE information is the data relating to nodes and TE links that is
   used in the process of selecting a TE path.  TE information is
   usually only available within a network.  We call such a zone of
   visibility of TE information a domain. An example of a domain may be
   an IGP area or an Autonomous System.

   In order to determine the potential to establish a TE path through a
   series of connected networks, it is necessary to have available a
   certain amount of TE information about each network.  This need not
   be the full set of TE information available within each network, but
   does need to express the potential of providing TE connectivity. This
   subset of TE information is called TE reachability information.

   This document sets out the problem statement and architecture for the
   exchange of TE information between interconnected TE networks in
   support of end-to-end TE path establishment.  For reasons that are
   explained in the document, this work is limited to simple TE
   constraints and information that determine TE reachability.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

Farrel, et al.                                                  [Page 1]
Internet-Draft    Information Exchange Between TE Networks    March 2016

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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 Documents
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   described in the Simplified BSD License.

Farrel, et al.                                                  [Page 2]
Internet-Draft    Information Exchange Between TE Networks    March 2016

Table of Contents

   1.  Introduction .................................................  5
   1.1.  Terminology ................................................  6
   1.1.1.  TE Paths and TE Connections ..............................  6
   1.1.2.  TE Metrics and TE Attributes .............................  6
   1.1.3.  TE Reachability ..........................................  6
   1.1.4.  Domain ...................................................  7
   1.1.5.  Aggregation ..............................................  7
   1.1.6.  Abstraction ..............................................  7
   1.1.7.  Abstract Link ............................................  7
   1.1.8.  Abstract Node or Virtual Node ............................  8
   1.1.9.  Abstraction Layer Network ................................  8
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