Private Line Emulation over Packet Switched Networks
draft-schmutzer-bess-ple-00

• Status
• IESG evaluation record
• IESG writeups
• Email expansions
• History

• Versions
• 00

Internet Engineering Task Force                              S. Gringeri
Internet-Draft                                              J. Whittaker
Intended status: Standards Track                                 Verizon
Expires: January 13, 2021                              C. Schmutzer, Ed.
                                                         L. Della Chiesa
                                                          N. Nainar, Ed.
                                                            C. Pignataro
                                                     Cisco Systems, Inc.
                                                           July 12, 2020

          Private Line Emulation over Packet Switched Networks
                      draft-schmutzer-bess-ple-00

Abstract

   This document describes a method for encapsulating high-speed bit-
   streams as virtual private wire services (VPWS) over packet switched
   networks (PSN) providing complete signal transport transparency.

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 13, 2021.

Copyright Notice

   Copyright (c) 2020 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
   (https://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

Gringeri, et al.        Expires January 13, 2021                [Page 1]
Internet-Draft                     PLE                         July 2020

   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 and Motivations  . . . . . . . . . . . . . . . .   2
   2.  Requirements Notation . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology and Reference Model . . . . . . . . . . . . . . .   3
     3.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     3.2.  Reference Models  . . . . . . . . . . . . . . . . . . . .   4
   4.  PLE Encapsulation Layer . . . . . . . . . . . . . . . . . . .   6
     4.1.  PSN and VPWS Demultiplexing Headers . . . . . . . . . . .   7
     4.2.  PLE Header  . . . . . . . . . . . . . . . . . . . . . . .   7
       4.2.1.  PLE Control Word  . . . . . . . . . . . . . . . . . .   7
       4.2.2.  RTP Header  . . . . . . . . . . . . . . . . . . . . .   8
   5.  PLE Payload Layer . . . . . . . . . . . . . . . . . . . . . .  10
     5.1.  Constant Bit Rate Payload . . . . . . . . . . . . . . . .  10
     5.2.  ODUk Frame aligned Payload  . . . . . . . . . . . . . . .  10
   6.  PLE Operation . . . . . . . . . . . . . . . . . . . . . . . .  11
     6.1.  Common Considerations . . . . . . . . . . . . . . . . . .  11
     6.2.  PLE IWF Operation . . . . . . . . . . . . . . . . . . . .  11
       6.2.1.  PSN-bound Encapsulation Behavior  . . . . . . . . . .  11
       6.2.2.  CE-bound Decapsulation Behavior . . . . . . . . . . .  12
     6.3.  PLE Performance Monitoring  . . . . . . . . . . . . . . .  13
     6.4.  QoS and Congestion Control  . . . . . . . . . . . . . . .  14
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  14
     10.2.  Informative References . . . . . . . . . . . . . . . . .  16
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction and Motivations

   This document describes a method for encapsulating high-speed bit-
   streams as VPWS over packet switched networks (PSN).  This emulation
   suits applications where complete signal transparency is required and
   data interpretation of the PE would be counter productive.

   One example is two ethernet connected CEs and the need for
   synchronous ethernet operation between then without the intermediate