ESP revision

• Troubleshooting Hardware and Software Issues

  1. Identify symptoms

  2. Check connections and components

  3. Analyze error messages

  4. Try basic fixes like restarting or reinstalling

  5. Research solutions online or consult technical documentation
• Setting Up and Configuring Devices

  1. Unpack and connect device according to manufacturer's instructions

  2. Install necessary drivers or software

  3. Configure settings based on user preferences and network requirements

  4. Test device to ensure it functions correctly
• Network Types

  • LAN
  • WAN
• IP Addressing

  • IPv4
  • IPv6
• Network Devices

  • Routers
  • Switches
• Understanding Networking Principles

  • How data flows across networks
  • How to secure networks with firewalls and encryption
  • How to troubleshoot common network issues like connection drops or slow speeds
• Fishbone Diagram (Ishikawa Diagram)


  Used to visually represent the potential causes of a problem by categorizing them into different branches resembling fishbones
• Categories in Fishbone Diagram

  • People
  • Process
  • Equipment
  • Materials
  • Environment
  • Management
• 5 Whys Technique


  Involves asking "why" repeatedly (typically five times) to delve deeper into the root cause of a problem
• 5 Whys Technique


  Helps to uncover the underlying causes beyond the initial symptoms
• Pareto Analysis


  Also known as the 80/20 rule, Pareto analysis helps identify the most significant contributing factors to a problem
• Pareto Analysis


  Focuses on addressing the few critical causes that account for most of the problem
• Fault Tree Analysis (FTA)


  Utilized in engineering and risk management to analyse potential failure modes
• Fault Tree Analysis (FTA)


  Diagrammatically represents the logical relationships between various events and their potential causes
• Failure Mode and Effects Analysis (FMEA)


  Systematically evaluates potential failure modes of a process or product and their potential effects
• Failure Mode and Effects Analysis (FMEA)

  Helps prioritize which failures to address based on severity, occurrence, and detection
• People use the 5 Whys technique to systematically uncover the root cause of a problem by asking "why" repeatedly
• The 5 Whys technique helps to dig deeper beyond the surface-level symptoms and identify the underlying issues contributing to the problem, leading to more effective solutions and preventive measures
• Identify the Problem


  1. Determine the nature of the issue

  2. Gather information about symptoms and affected devices
• Isolate the Cause


  1. Check physical connections, cables, and hardware

  2. Verify network configurations and settings

  3. Use diagnostic tools like ping, traceroute, and network analysers
• Resolve the Issue


  1. Restart affected devices and networking equipment

  2. Update firmware and drivers

  3. Adjust network settings or configurations as needed

  4. Consult documentation or seek assistance if necessary
• Test and Verify


  1. Confirm that the issue has been resolved

  2. Test network connectivity and performance

  3. Monitor for any recurring issues
• Preventive Measures


  1. Implement regular maintenance and updates

  2. Educate users on best practices for network usage

  3. Document troubleshooting procedures for future reference
• Diagnostic Tools


  • Ping
  • Traceroute
  • Network Analysers
• Monitoring Tools


  • SNMP (Simple Network Management Protocol)
  • Syslog
• Configuration Tools


  • Command-Line Interface (CLI)
  • Configuration Management Tools
• Hardware Tools


  • Cable Tester
  • Loopback Adapter
• Remote Access Tools


  • Remote Desktop Protocol (RDP)
  • SSH (Secure Shell)