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Cisco ACI Cookbook

Cisco ACI Cookbook

By : Fordham
3.1 (7)
Buy this Book
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Cisco ACI Cookbook

Cisco ACI Cookbook

3.1 (7)
By: Fordham
Buy this Book

Overview of this book

Cisco Application Centric Infrastructure (ACI) is a tough architecture that automates IT tasks and accelerates data-center application deployments. This book focuses on practical recipes to help you quickly build, manage, and customize hybrid environment for your organization using Cisco ACI. You will begin by understanding the Cisco ACI architecture and its major components. You will then configure Cisco ACI policies and tenants. Next you will connect to hypervisors and other third-party devices. Moving on, you will configure routing to external networks and within ACI tenants and also learn to secure ACI through RBAC. Furthermore, you will understand how to set up quality of service and network programming with REST, XML, Python and so on. Finally you will learn to monitor and troubleshoot ACI in the event of any issues that arise. By the end of the book, you will gain have mastered automating your IT tasks and accelerating the deployment of your applications.
Table of Contents (11 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Sections
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Conventions
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Reader feedback
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Customer support
Free Chapter
1
Understanding Components and the ACI Fabric
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Understanding Components and the ACI Fabric
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Introduction
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Understanding ACI and the APIC
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An overview of the ACI fabric
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Converting Cisco from Nexus NX-OS mode to ACI mode
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ACI fabric overlay
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An introduction to the GUI
2
Configuring Policies and Tenants
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Configuring Policies and Tenants
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Introduction
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Creating fabric policies
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Creating access policies
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Creating tenants
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Configuring bridge domains
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Configuring contexts
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Creating application network profiles
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Creating endpoint groups
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Using contracts between tenants
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Creating filters
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Creating contracts within tenants
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Creating management contracts
3
Hypervisor Integration (and Other Third Parties)
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Hypervisor Integration (and Other Third Parties)
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Introduction
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Installing device packages
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Creating VMM domains and integrating VMWare
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Associating vCenter domains with a tenant
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Deploying the AVS
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Discovering VMWare endpoints
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Adding virtual machines to a tenant
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Tracking ACI endpoints
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Integrating with A10
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Deploying the ASAv
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Integrating with OpenStack
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Integrating with F5
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Integrating with Citrix NetScaler
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Routing in ACI
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Routing in ACI
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Introduction
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Creating a DHCP relay
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Utilizing DNS
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Routing with BGP
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Configuring a layer-3 outside interface for tenant networks
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Associating a bridge domain with an external network
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Using route reflectors
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Routing with OSPF
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Routing with EIGRP
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Using IPv6 within ACI
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Setting up multicast for ACI tenants
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Configuring multicast on the bridge domain and interfaces
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ACI transit routing and route peering
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ACI Security
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ACI Security
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Introduction
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Creating local users
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Creating security domains
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Limiting users to tenants
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Connecting to a RADIUS server
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Connecting to an LDAP server
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Connecting to a TACACS+ server
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Implementing Quality of Service in ACI
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Implementing Quality of Service in ACI
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Introduction
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Preserving existing CoS settings
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Configuring user-defined classes
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Creating a basic QoS configuration
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Verifying QoS
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Network Programmability with ACI
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Network Programmability with ACI
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Introduction
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Browsing the object store using the Object Store Browser
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Programming the ACI through REST
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Authenticating through REST and XML
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Creating a tenant using REST and XML
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Deleting a tenant using REST and XML
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Creating an APN and an EPG using REST and XML
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Creating an application profile and EPG using REST
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Authenticating through REST and JSON
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Creating a tenant using REST and JSON
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Using the Python SDK
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Logging into the APIC using Cobra
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Creating a tenant using the SDK
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Monitoring ACI
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Monitoring ACI
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Introduction
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Finding faults
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Viewing events
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Navigating the audit logs
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Setting up Call Home
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Configuring SNMP
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Configuring Syslog
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Configuring NetFlow
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Troubleshooting ACI
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Troubleshooting ACI
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Introduction
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Layer 2 troubleshooting
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FEX troubleshooting
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SSL troubleshooting
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Switch diagnostics
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APIC troubleshooting
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Upgrading the ACI software
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VMM troubleshooting
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Routing verifications
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Troubleshooting external connectivity
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Multicast troubleshooting
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QoS troubleshooting
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An End-to-End Example Using the NX-OS CLI
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An End-to-End Example Using the NX-OS CLI
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Introduction
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Setting up in-band and out-of-band access to the nodes
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Creating the security domain
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Creating the VLAN domain
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Creating the VMWare domain
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Creating the tenant
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Creating the VRF
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Creating the bridge domains
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Creating the applications and EPGs
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Creating the contract
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Creating an L4-L7 device
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Creating service templates
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Setting up the client VMs

Introduction

We will start configuring the ACI fabric by creating some policies and a couple of tenants.

The ACI policy model is all about mapping application requirements to policies. We need tenant A to talk to an SQL server; we create a policy for that. We also need tenant A to talk the storage system, so we create a policy for that.

The APIC looks after the policies. When we make a change to an object within the fabric, it is the job of the APIC to apply this change to the policy model, which then makes the change to the affected endpoint. Such an example would be adding a new device to the fabric. Communication with the new device is prohibited until the policy model is updated to include the new device.

There are different policies, but they can be split into fairly distinct groups: those that govern the ACI fabric as a whole and those that are concerned with tenants.

All the policies are recorded in the MIT, or management information tree.

The MIT

In this chapter, we will start by creating...

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