Interface and Hardware Component Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 25.1.x, 25.2.x, 25.3.x, 25.4.x

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Updated:: December 17, 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 table summarizes the new and changed feature information for the Interface and Hardware Component Configuration Guide for Cisco NCS 5500 Series Routers, and tells you where they are documented.

Interface and hardware component features added or modified in IOS XR Release 25.x.x

Table 1. New and Changed Features
Feature	Description	Introduced in Release	Where Documented
Restore timer configuration	This feature was introduced.	Release 25.4.1	Link loss forwarding
Support for 1x100G breakout mode on NC57-36H6D-S line card using DP04QSDD-HE0 and QDD-400G-ZRP-S	This feature was introduced.	Release 25.4.1	Configuring 400G Digital Coherent Optics
Minimum-delay bin	This feature was introduced.	Release 25.1.1	Minimum delay bin
Enable egress traffic mirroring in non-ETM mode	This feature was introduced.	Release 25.1.1	VLAN Subinterface as Ingress or Egress Source for Traffic Mirroring

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