Implement ACI Transit Routing (Multipod)

[mrichinfinite]

Introduction

This document describes how to configure transit routing in an ACI multipod environment. In transit routing, the Cisco Application Centric Infrastructure (Cisco ACI) fabric advertises the routes that are learned from one Layer 3 Out (L3Out) connection to another L3Out connection. The external Layer 3 domains peer with the fabric on the border leaf switches. The fabric is a transit Multiprotocol Border Gateway Protocol (MP-BGP) domain between the peers.

 

Prerequisites

Requirements

1. ACI multipod environment
2. At least 2 L3Outs
3. At least 1 spine in each pod configured as an MP-BGP route reflector: Configuring an MP-BGP Route Reflector

 

Components Used

1. 2 N5K-C5548UP switches (used as external routers)
2. 1 N9K-C9332PQ leaf switch & 1 N9K-C93108TC-EX leaf switch
3. 2 N9K-C9336PQ spine switches
4. 1 N9K-C9232C (used as IPN device)

 

Configure

Network Diagram

Configurations

® Contributed by Matthew Rich, Cisco ACI TAC Engineer

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