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Cisco 8000 Series Routers: IOS XR Release 25.2.1 Highlights

Discover the latest innovations and enhancements for Cisco 8000 Series Routers with the release of IOS XR 25.2.1. This update introduces significant new software features and hardware, focusing on improved security, performance, and network management capabilities.

Key Software Features

This release brings advanced features such as disk encryption for enhanced data security using LUKS with AES-XTS, robust telemetry streaming for IPv4 and IPv6 interfaces, and Cisco Secure DDoS Edge Protection for MPLS traffic. Enhancements in Quality of Service (QoS) include increased accuracy for traffic shaping statistics and improved monitoring of Priority Flow Control (PFC) pause durations. Network monitoring is further bolstered with features like mirroring dropped traps using SPAN and sFlow, and simultaneous L2 and L3 flow monitoring via IPFIX.

New Hardware Introduction

A notable addition in this release is the Cisco 400G QSFP-DD Ultra Long Haul Coherent Optics (DP04QSDD-ULH), expanding the optical capabilities for high-performance networking.

System and Security Enhancements

Improvements include configurable core dump folder limits for better disk management, unique packet capture for SPAN-to-File, and enhanced MACsec encryption on Layer 3 subinterfaces for increased network security. The release also introduces dual-stack support with SRv6 for unicast and IPv4 for multicast, alongside gRPC-based North Bound API for BGP-LS objects, facilitating better network programmability and visibility.

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