Lesson 4: Cisco IOS XR Essentials (IOSXRE) v1.0 – Troubleshooting, Optimization, and Design

This lesson provides guided coverage of troubleshooting, optimization, and design within the Cisco IOS XR Essentials (IOSXRE) v1.0 Training.

Topics Covered

• Routing adjacency, BGP, MPLS, VPN, multicast, QoS, and forwarding problems
• IOS XR logs, counters, traces, packet captures, and diagnostic commands
• Service reachability, label path, policy, convergence, and performance issues
• Capacity, latency, loss, resiliency, and network optimization
• Design validation, migration, maintenance windows, and rollback
• Root-cause analysis, support evidence, and operational handover
• Service provider troubleshooting capstone

Practical Outcome

Learners complete the lesson with a clear understanding of the workflow, the ability to validate the expected result, and a structured approach to common troubleshooting tasks.