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Cisco ACI Cookbook

You're reading from Cisco ACI Cookbook A Practical Guide to Maximize Automated Solutions and Policy-Drive Application Profiles

Product type Paperback

Published in May 2017

Publisher

ISBN-13 9781787129214

Length 424 pages

Edition 1st Edition

Tools

Cisco

Concepts

Networking

Author (1):

Stuart Fordham

View More author details

Table of Contents (11) Chapters

Preface

1. Understanding Components and the ACI Fabric FREE CHAPTER

2. Configuring Policies and Tenants

3. Hypervisor Integration (and Other Third Parties)

4. Routing in ACI

5. ACI Security

6. Implementing Quality of Service in ACI

7. Network Programmability with ACI

8. Monitoring ACI

9. Troubleshooting ACI

10. An End-to-End Example Using the NX-OS CLI

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...

Navigate to Fabric | Access Policies.
Expand Global Policies and select QOS Class Policies:

In the workspace, select the option to Preserve COS:

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

The rest of the chapter is locked

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Authors (1)

Fordham

Fordham

Stuart Fordham is a networking engineer who focuses on security and DevOps. He is CCIE #49337 (Routing and Switching), along with other qualifications such as CCDP, CEH, RHCSA, and MCSE. He has also been a Cisco Champion for 2017 and has authored a series of networking books. He is the network manager for a leading global Communication-as-a-Service company and has worked for hedge funds, the government, and the National Health Service.

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