Book Image

Cisco ACI Cookbook

By : Stuart Fordham
Book Image

Cisco ACI Cookbook

By: Stuart Fordham

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 (17 chapters)
Title Page
Credits
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Utilizing DNS


A DNS policy will be required to connect to external servers by their name, rather than their IP address. Such services could be AAA, RADIUS, or vCenter.

The DNS service policy is a shared policy, in that any tenant and VRF that uses this service must be configured with the particular DNS profile label.

How to do it...

  1. From Fabric, select Fabric Policies | Global Policies | DNS profiles. Right-click on DNS Profiles and select Create DNS Profile.

 

 

  1. Name the profile and select the default (Out-of-Band) option next to Management EPG.
  1. Click on the plus sign next to DNS Providers and add the IP addresses of the DNS servers. Select the Preferred tick box if you want to.
  1. Set the DNS domains in the same manner.
  2. Click on SUBMIT. We need to set the labels, again.
  3. From Tenants, select the mgmt. tenant.
  4. Go to Networking, then to VRFs, and select oob.
  5. Scroll down the page in the working pane until you see the DNS labels box.

 

  1. Enter the DNS label (Global-DNS-Policy).
  1. Click on SUBMIT.

Note

Perform steps...