Private Line Emulation VPWS Signalling
draft-schmutzer-bess-ple-vpws-signalling-00

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BESS Working Group                                           S. Gringeri
Internet-Draft                                              J. Whittaker
Intended status: Standards Track                                 Verizon
Expires: January 13, 2021                              C. Schmutzer, Ed.
                                                            P. Brissette
                                                     Cisco Systems, Inc.
                                                           July 12, 2020

                 Private Line Emulation VPWS Signalling
              draft-schmutzer-bess-ple-vpws-signalling-00

Abstract

   This document specifies the mechanisms to signal Virtual Private Wire
   Services (VPWS) carrying bit-stream signals over Packet Switched
   Networks (PSN).

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

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  Solution Requirements . . . . . . . . . . . . . . . . . . . .   7
   3.  Service Types . . . . . . . . . . . . . . . . . . . . . . . .   8
     3.1.  Ethernet Service Types  . . . . . . . . . . . . . . . . .   8
     3.2.  Fibre Channel Service Types . . . . . . . . . . . . . . .   8
     3.3.  OTN Service Types . . . . . . . . . . . . . . . . . . . .   9
     3.4.  TDM Service Types . . . . . . . . . . . . . . . . . . . .   9
     3.5.  SONET/SDH Service Types . . . . . . . . . . . . . . . . .  10
   4.  EVPN-VPWS signalling  . . . . . . . . . . . . . . . . . . . .  10
     4.1.  Reuse of existing BGP EVPN-VPWS capabilities  . . . . . .  10
     4.2.  BGP PLE Attribute . . . . . . . . . . . . . . . . . . . .  10
       4.2.1.  PW Type TLV . . . . . . . . . . . . . . . . . . . . .  11
       4.2.2.  PLE/CEP/TDM Bit-rate TLV  . . . . . . . . . . . . . .  12
       4.2.3.  PLE/CEP Options TLV . . . . . . . . . . . . . . . . .  13
       4.2.4.  TDM options TLV . . . . . . . . . . . . . . . . . . .  14
       4.2.5.  PLE/CEP/TDM Payload Bytes TLV . . . . . . . . . . . .  15
       4.2.6.  Endpoint-ID TLV . . . . . . . . . . . . . . . . . . .  16
     4.3.  Control Plane Operations  . . . . . . . . . . . . . . . .  16
       4.3.1.  VPWS Setup and Teardown . . . . . . . . . . . . . . .  17
       4.3.2.  Failure Scenarios . . . . . . . . . . . . . . . . . .  18
         4.3.2.1.  Single-homed CEs  . . . . . . . . . . . . . . . .  18
         4.3.2.2.  Multi-homed CEs . . . . . . . . . . . . . . . . .  18
   5.  VPWS signalling using LDP . . . . . . . . . . . . . . . . . .  19
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  19
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  19
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  19
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  21

1.  Introduction

   Virtual Private Wire Service (VPWS) is a widely deployed technology
   for providing point-to-point (P2P) services for various layer 2 and
   also layer 1 technologies.  Initially VPWS were define in the
   Pseudowire Emulation Edge-to-Edge (PWE3) architecture [RFC3985] for
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