Overview

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This course provides a deep dive into segment routing (SR) and TI-LFA, essential technologies for modern networking. It bridges traditional MPLS with SR-MPLS, offering a clear path to mastering network reliability and performance. This is a vital skill for network professionals, as segment routing optimizes data flow and enhances network resiliency. The course will guide learners through the intricacies of MPLS networks, including hands-on labs for configuring and troubleshooting SR-MPLS and fast rerouting (FRR) with TI-LFA. Learners will be equipped with practical skills to implement these technologies in real-world scenarios, improving network uptime and performance. What sets this course apart is its hands-on, lab-focused approach, combining theoretical knowledge with practical applications. Learners will gain real-world experience in configuring SR-MPLS and implementing TI-LFA, empowering them to solve complex networking challenges effectively. This course is ideal for network engineers and professionals with a basic understanding of MPLS who wish to advance their expertise in SR-MPLS and TI-LFA. A foundational knowledge of networking concepts will be beneficial.

Syllabus

Introduction to Multiprotocol Label Switching (MPLS)

In this section, we explore MPLS fundamentals, SR-MPLS, and FRR, focusing on their applications, infrastructure requirements, and practical implementation in modern IP networks.

Getting Started with LDP-Based MPLS Network

In this section, we configure IP addressing, implement IS-IS for routing, and verify LDP label distribution in an MPLS network, focusing on foundational skills for scalable and efficient traffic management.

Introducing Segment Routing MPLS (SR-MPLS)

In this section, we introduce SR-MPLS into a network topology, focusing on label allocation, verification, and integration without disrupting live traffic.

SR-LDP Interworking

In this section, we explore SR-MPLS and LDP interworking, focusing on label programming in LFIB and FIB, and how they enable seamless traffic handling across MPLS domains.

Introducing TI-LFA Topology Independent Loop-Free Alternate

In this section, we explore TI-LFA for fast reroute protection, focusing on backup path calculation and verification in segment routing networks to ensure minimal disruption during failures.

Zero-Segment FRR

In this section, we explore TI-LFA backup path calculation in segment routing networks, focusing on label stack efficiency and zero-segment FRR implementation for reliable traffic rerouting.

Single-Segment FRR

In this section, we explore TI-LFA for loop-free backup paths using single-segment FRR, analyzing label stack usage and verifying routes in RIB, FIB, and LFIB for network resilience.

Double-Segment FRR

In this section, we explore double-segment FRR for loop-free backup paths, focusing on label stack configuration and verification in Cisco IOS XR for network redundancy.

Microloop Avoidance

In this section, we explore microloop avoidance in link-state networks, focusing on SR-MPLS tunneling to prevent traffic loss during SPF convergence delays and ensure stable routing.

TI-LFA Node Protection

In this section, we explore TI-LFA node protection in SR-MPLS networks, focusing on backup path selection under node constraints and configuring MPLS TE for SRAT auto-tunnel functionality.

TI-LFA Local SRLG-Disjoint Protection

In this section, we explore TI-LFA SRLG-disjoint protection in SR-MPLS networks, focusing on designing backup paths that avoid shared risk link groups to enhance resilience and prevent traffic blackholing during failures.

TI-LFA Global Weighted SRLG Protection

In this section, we explore TI-LFA Global Weighted SRLG protection, focusing on excluding local and remote SRLG links to ensure resilient backup paths in SR-MPLS networks using IS-IS TLV 238.

TI-LFA Node SRLG Protection

In this section, we explore TI-LFA node and SRLG protection in MPLS networks, focusing on configuring fast reroute to avoid node and shared risk link failures for resilient traffic management.

TI-LFA Tiebreaker

In this section, we examine TI-LFA tiebreaker mechanisms in SR-MPLS networks, focusing on node and SRLG protection trade-offs and backup path configurations for enhanced network resilience.