Preface


Note

This product has reached end-of-life status. For more information, see the End-of-Life and End-of-Sale Notices.

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

January 2022

Republished for Release 7.3.3.

October 2021

Republished for Release 7.3.2.

February 2021

Initial release of this document.

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