Interface and Hardware Component Configuration Guide for Cisco ASR 9000 Series Routers, IOS XR Release 25.1.x, 25.2.x, 25.3.x

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Book Contents

Find Matches in This Book

Results

Updated:: September 16, 2025

Chapter: New and Changed Feature Information

New and Changed Feature Information
Interface and Hardware Component Features Added or Modified in IOS XR Release 25.x.x

New and Changed Feature Information

This chapter lists all the features that have been added or modified in this guide. The table also contains references to these feature documentation sections.

Interface and Hardware Component Features Added or Modified in IOS XR Release 25.x.x

Table 1. New and Changed Features
Feature	Description	Changed in Release	Where Documented
Configuring QDD Optical Line System	The QDD Optical Line System (OLS) is a new pluggable optical amplifier that interconnects two routers or switches for transmitting traffic on a limited number of coherent optical channels over a single span point-to-point link. With the QDD OLS pluggable, it’s now possible to obtain the functionality of amplification into a QSFP-DD module that can be plugged into a port of the router or switch.	Release 25.3.1	Configure QDD optical line system

Was this Document Helpful?

Feedback

Contact Cisco

Open a Support Case
(Requires a Cisco Service Contract)