BGP Configuration Guide for Cisco 8000 Series Routers, Cisco IOS XR Releases

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BGP Flowspec

Overview

Outlines BGP flowspec concepts, deployment models, configuration methods, verification procedures, advanced redirect scenarios, traffic filtering actions, IPv6 packet length support, and flow-tag propagation for comprehensive traffic control and security in network infrastructures.

This chapter details BGP Flowspec, a routing feature enabling dynamic traffic filtering, policing, and automated threat mitigation, especially against DDoS attacks. It covers configuring client and server roles, verifying operations, and implementing advanced traffic redirection from global VRF to L3VPN or segment routing policies.