Preface

From Release 6.1.2 onwards, Cisco introduces support for the 64-bit Linux-based IOS XR operating system. Extensive feature parity is maintained between the 32-bit and 64-bit environments. Unless explicitly marked otherwise, the contents of this document are applicable for both the environments. For more details on Cisco IOS XR 64 bit, refer to the Release Notes for Cisco ASR 9000 Series Routers, Release 6.1.2 document.

This guide describes the Cisco IOS XR QoS configurations. The preface for the Modular QoS Configuration Guide for Cisco ASR 9000 Series Routers contains these sections:

Changes to this Document

This table lists the changes made to this document since it was first published.

Date

Summary

Dec 2024

Republished for Release 24.4.1.

Sep 2024

Republished for Release 24.3.1.

June 2024

Republished for Release 24.2.1.

March 2024

Initial release of this document.

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