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Cisco ACI Cookbook

Cisco ACI Cookbook

By : Fordham
3.1 (7)
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Cisco ACI Cookbook

Cisco ACI Cookbook

3.1 (7)
By: 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 (11 chapters)
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Preserving existing CoS settings


If traffic entering and exiting the fabric already has CoS markings (known as 802.1P, or dot1p), then we should either preserve them or modify them. In this recipe, we will instruct the fabric to preserve the settings.

 How to do it...

  1. Navigate to Fabric | Access Policies.
  2. Expand Global Policies and select QOS Class Policies:
  1. In the workspace, select the option to Preserve COS:
  1. Click on Submit in the bottom right-hand corner.

How it works...

The ACI fabric will now preserve the 802.1P markings on traffic.

Beneath this setting, you can see three different levels, which are the user-defined classes which we will discuss next.

There's more...

We can enable CoS preservation from the CLI:

apic1# configure
apic1(config)# qos preserve cos

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