Seamless Multicast Interoperability between EVPN and MVPN PEs
draft-ietf-bess-evpn-mvpn-seamless-interop-01
BESS WorkGroup A. Sajassi
Internet-Draft K. Thiruvenkatasamy
Intended status: Standards Track S. Thoria
Expires: January 11, 2021 Cisco
A. Gupta
VMware
L. Jalil
Verizon
July 10, 2020
Seamless Multicast Interoperability between EVPN and MVPN PEs
draft-ietf-bess-evpn-mvpn-seamless-interop-01
Abstract
Ethernet Virtual Private Network (EVPN) solution is becoming
pervasive for Network Virtualization Overlay (NVO) services in data
center (DC) networks and as the next generation VPN services in
service provider (SP) networks.
As service providers transform their networks in their COs toward
next generation data center with Software Defined Networking (SDN)
based fabric and Network Function Virtualization (NFV), they want to
be able to maintain their offered services including Multicast VPN
(MVPN) service between their existing network and their new Service
Provider Data Center (SPDC) network seamlessly without the use of
gateway devices. They want to have such seamless interoperability
between their new SPDCs and their existing networks for a) reducing
cost, b) having optimum forwarding, and c) reducing provisioning.
This document describes a unified solution based on RFCs 6513 & 6514
for seamless interoperability of Multicast VPN between EVPN and MVPN
PEs. Furthermore, it describes how the proposed solution can be used
as a routed multicast solution in data centers with only EVPN PEs.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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Task Force (IETF). Note that other groups may also distribute
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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
Sajassi, et al. Expires January 11, 2021 [Page 1]
Internet-DraSeamless Multicast Interoperability between EVPN July 2020
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 11, 2021.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 5
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Requirements . . . . . . . . . . . . . . . . . . . . . . . . 7
4.1. Optimum Forwarding . . . . . . . . . . . . . . . . . . . 7
4.2. Optimum Replication . . . . . . . . . . . . . . . . . . . 7
4.3. All-Active and Single-Active Multi-Homing . . . . . . . . 7
4.4. Inter-AS Tree Stitching . . . . . . . . . . . . . . . . . 8
4.5. EVPN Service Interfaces . . . . . . . . . . . . . . . . . 8
4.6. Distributed Anycast Gateway . . . . . . . . . . . . . . . 8
4.7. Selective & Aggregate Selective Tunnels . . . . . . . . 8
4.8. Tenants' (S,G) or (*,G) states . . . . . . . . . . . . . 8
4.9. Zero Disruption upon BD/Subnet Addition . . . . . . . . . 8
4.10. No Changes to Existing EVPN Service Interface Models . . 9
4.11. External source and receivers . . . . . . . . . . . . . . 9
4.12. Tenant RP placement . . . . . . . . . . . . . . . . . . . 9
5. IRB Unicast versus IRB Multicast . . . . . . . . . . . . . . 9
5.1. Emulated Virtual LAN Service . . . . . . . . . . . . . . 10
6. Solution Overview . . . . . . . . . . . . . . . . . . . . . . 10
6.1. Operational Model for EVPN IRB PEs . . . . . . . . . . . 10
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