Configure Nexus L2 EVPN over SR MPLS with VPC Anycast Gateway

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Updated:September 8, 2022

Document ID:218144

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Background Information

Configure

Network Diagram

High-Level Configuration

Verify

Troubleshoot

Introduction

This document describes how to deploy L2 Ethernet VPN over Segment Routing (SR) Multiprotocol Label Switching with virtual Port Channel on Nexus9K.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

Border Gateway Protocol (BGP)
Open Shortest Path First (OSPF)
MPLS
Label Distribution Protocol (LDP)
Resource Reservation Protocol (RSVP)
EVPN
SR
vPC

Components Used

The information in this document is based on these software and hardware versions:

Nexus switch 92360C that runs Release 9.3(10) for H1 and H3.
Nexus switch 93180YC-FX that runs Release 10.2(3) for Spine.
Nexus switch 93240YC that runs Release 10.2(3) for Leaf.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.

Background Information

VPLS/L2-EVPN is a Multipoint-to-Multipoint Layer 2 VPN Service that connects multiple branches of a Customer, in a single logical switched architecture over an IP/MPLS network.

Overview of Layer2 EVPN-MPLS SR

EVPN (RFC 7432) is BGP MPLS-based solution which has been used for next generation Ethernet services in virtualized data center network. It uses several blocks such as Route Distinguisher (RD), Route Target (RT), and Virtual Routing and Forwarding (VRF) from MPLS technologies that exist.

In contrast to VPLS , EVPN enables control-plane based MAC learn in the core. In EVPN, PEs that participate in the EVPN instances learn custom MAC routes in control-plane with Multiprotocol (MP)-BGP protocol. Control-plane MAC learn provides a number of benefits that allow EVPN to address the VPLS shortcomings, which includes support for multihome with per-flow load balancing.