Private Line Emulation VPWS Signalling
draft-schmutzer-bess-ple-vpws-signalling-01
BESS Working Group S. Gringeri
Internet-Draft J. Whittaker
Intended status: Standards Track Verizon
Expires: May 6, 2021 C. Schmutzer, Ed.
P. Brissette
Cisco Systems, Inc.
November 2, 2020
Private Line Emulation VPWS Signalling
draft-schmutzer-bess-ple-vpws-signalling-01
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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Internet-Draft Abbreviated Title November 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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