Use Cases for SF Aware Topology Models
draft-bryskin-teas-use-cases-sf-aware-topo-model-02

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Document Type Active Internet-Draft (individual)
Authors Igor Bryskin  , Xufeng Liu  , Jim Guichard  , Young Lee  , Luis Contreras  , Daniele Ceccarelli 
Last updated 2018-03-02
Replaced by draft-ietf-teas-use-cases-sf-aware-topo-model
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Network Working Group                                         I. Bryskin
Internet-Draft                                       Huawei Technologies
Intended status: Informational                                    X. Liu
Expires: September 3, 2018                                         Jabil
                                                             J. Guichard
                                                                  Y. Lee
                                                     Huawei Technologies
                                                            L. Contreras
                                                              Telefonica
                                                           D. Ceccarelli
                                                                Ericsson
                                                           March 2, 2018

                 Use Cases for SF Aware Topology Models
          draft-bryskin-teas-use-cases-sf-aware-topo-model-02

Abstract

   This document describes some use cases that benefit from the network
   topology models that are service and network function aware.

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   This Internet-Draft will expire on September 3, 2018.

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   carefully, as they describe your rights and restrictions with respect
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Exporting SF/NF Information to Network Clients and Other
       Network SDN Controllers . . . . . . . . . . . . . . . . . . .   4
   4.  Flat End-to-end SFCs Managed on  Multi-domain Networks  . . .   5
   5.  Managing SFCs with TE Constraints . . . . . . . . . . . . . .   6
   6.  SFC Protection and Load Balancing . . . . . . . . . . . . . .   7
   7.  Network Clock Synchronization . . . . . . . . . . . . . . . .  10
   8.  Client - Provider Network Slicing Interface . . . . . . . . .  10
   9.  Dynamic Assignment of Regenerators for L0 Services  . . . . .  10
   10. Dynamic Assignment of OAM Functions for L1 Services . . . . .  12
   11. SFC Abstraction and Scaling . . . . . . . . . . . . . . . . .  13
   12. Dynamic Compute/VM/Storage Resource Assignment  . . . . . . .  13
   13. Application-aware Resource Operations and Management  . . . .  14
   14. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   15. Security Considerations . . . . . . . . . . . . . . . . . . .  15
   16. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  15
   17. References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     17.1.  Normative References . . . . . . . . . . . . . . . . . .  15
     17.2.  Informative References . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  16

1.  Introduction

   Normally network connectivity services are discussed as a means to
   inter-connect various abstract or physical network topological
   elements, such as ports, link termination points and nodes
   [I-D.ietf-teas-yang-te-topo] [I-D.ietf-teas-yang-te].  However, the
   connectivity services, strictly speaking, interconnect not the
   network topology elements per-se, rather, located on/associated with
   the various network and service functions [RFC7498] [RFC7665].  In
   many scenarios it is beneficial to decouple the service/network
   functions from the network topology elements hosting them, describe
   them in some unambiguous and identifiable way (so that it would be
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