Introduction

This course focuses on troubleshooting, diagnosing, and optimizing network performance in ArcOS environments. Participants will learn how to identify and resolve network issues, monitor system health, and fine-tune configurations for maximum efficiency. The training emphasizes practical problem-solving techniques, real-world scenarios, and the use of ArcOS diagnostic and telemetry tools to ensure resilient and high-performance network operations.

Prerequisites

• Solid understanding of ArcOS fundamentals and CLI operations

• Knowledge of routing, switching, and network protocols (OSPF, BGP, VLANs)

• Familiarity with network monitoring and performance metrics

• Optional: Experience with network automation or ArcIQ/ArcTelemetry

Table of Contents

1. Introduction to Troubleshooting in ArcOS
 1.1 Overview of Common Network Issues
 1.2 ArcOS Diagnostic Tools and Methods
 1.3 Troubleshooting Workflow and Best Practices

2. Monitoring Network Performance
 2.1 Key Performance Metrics in ArcOS
 2.2 Using ArcTelemetry for Real-Time Monitoring
 2.3 Logging, Syslog, and Event Analysis

3. Interface and Connectivity Troubleshooting
 3.1 Verifying Interfaces and Link Status
 3.2 VLAN, Trunk, and Port Channel Issues
 3.3 Troubleshooting IP Addressing and Connectivity

4. Routing and Switching Troubleshooting
 4.1 Static and Dynamic Route Verification
 4.2 OSPF, BGP, and Route Policy Debugging
 4.3 Layer 2 Switching and Spanning Tree Analysis

5. Performance Optimization Techniques
 5.1 Traffic Shaping and QoS Configuration
 5.2 Load Balancing and Redundancy Optimization
 5.3 Resource Utilization and Bottleneck Resolution

6. Security-Related Troubleshooting
 6.1 ACL and Policy Verification
 6.2 Authentication and Access Control Issues
 6.3 Securing Management Interfaces

7. Automation in Troubleshooting
 7.1 Using Scripts and APIs for Diagnostics
 7.2 Automated Monitoring and Alerting
 7.3 Closed-Loop Performance Optimization

8. Case Studies and Best Practices
 8.1 Real-World Troubleshooting Scenarios
 8.2 Lessons Learned and Optimization Tips
 8.3 Continuous Performance Improvement

By the end of this course, participants will be able to identify, troubleshoot, and resolve network issues efficiently in ArcOS environments. They will also gain the skills to optimize network performance, implement proactive monitoring, and ensure high availability and reliability across enterprise and data center networks.