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SEGRTE201-Implementing Segment Routing on Cisco IOS XR

SS Course: GK101136

Course Overview


This course covers the fundamental concepts of segment routing, how to configure and verify segment routing within an Interior Gateway Protocol (IGP), the interworking of Label Distribution Protocol (LDP) with segment routing, how to implement topology-independent loop-free alternate (TI-LFA) using segment routing, and how to instantiate and verify segment routing traffic engineering policies. Students will also learn how to implement segment routing within Border Gateway Protocol (BGP).

This course is eligible for 32 Continuing Education Credits (ILT & ELT Modality).


Scheduled Classes

04/01/24 - GVT - Virtual Classroom - Virtual Instructor-Led



Introduction to Segment Routing (SR)

  • Examining Unified Fabric Routing
  • Exploring Segment Routing Concepts
  • Examining Segment Types
  • Examining the Segment Routing Global Block (SRGB)

IGP Segment Routing Implementation and Verification

  • Examining the IGP Control Plane
  • Examining SRGB and IGP Interactions
  • Examining Prefix and Adjacency Segment Identifiers
  • Intermediate System to Intermediate System Multilevel and Open Shortest Path First (OSPF) Multi-Area
  • Configuring and Verifying IS-IS SR Operation
  • Configuring and Verifying OSPF SR Operation

Segment Routing and LDP Interworking

  • SR and LDP Interworking Data Plane
  • Mapping Server Function and Configuration
  • Interworking Deployment Models

Topology Independent -Loop Free Alternate

  • Examining Classic LFA
  • Examining TI-LFA Fundamentals
  • Implementing and Verifying TI-LFA for SR Traffic
  • Implementing and Verifying TI-LFA for LDP Traffic
  • TI-LFA and SR/LDP Interworking

Segment Routing Policies - Traffic Engineering (SR-TE)

  • Exploring SR Policies
  • Introducing the Anycast and Binding SIDs
  • Enabling and Verifying SR Policies
  • Instantiating SR Policies
  • Instantiating SR Policies Using BGP Dynamic

Multidomain SR Policies

  • Configuring and Verifying a Path Computation Element (PCE)
  • Configuring and Verifying BGP Link State (BGP-LS)
  • Configuring Multidomain SR Policies with a PCE
  • Configuring Multidomain SR Policies with On-Demand Next Hop (ODN)
  • Segment Routing - Based Services
  • Examining the BGP Prefix - SID Operation
  • Configuring and Verifying the BGP Prefix SID
  • Examining Egress Peer Engineering
  • Examining the BGP Prefix-SID Operation
  • SR Flexible Algorithm and Performance Measurement (PM) Delay
  • SR-Enabled VPNs



    Attendees should meet the following prerequisites:

    • Cisco IOS XR platform and command-line interface (CLI) familiarity

      Who Should Attend


      Designed for engineers and service providers who are deploying segment routing within their network.