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Duration 21 hours
Course Outline
Introduction to GNS3 for Network Simulation
- GNS3 architecture and its capabilities for design and testing
- Comparing GNS3 with physical labs and alternative simulators
- Recommended hardware, operating systems, and setup tips
Setting Up the GNS3 Environment
- Installing the GNS3 GUI and GNS3 VM
- Connecting GNS3 to physical devices and virtual machines
- Utilising Docker containers, appliances, and external tools
Constructing Enterprise Network Topologies
- Layer 2 and Layer 3 network components
- Simulating multi-site WAN and data centre environments
- Representing cloud and hybrid architectures within GNS3
Replicating Production Environments
- Capturing configurations from live networks
- Importing existing routing and switching setups
- Designing scalable testbeds that incorporate realistic traffic
Testing, Validation, and Documentation
- Techniques for traffic generation and fault injection
- Automated testing scenarios (such as BGP failover, QoS, and ACLs)
- Packet capture and flow validation using Wireshark
Integration with Other Tools
- Connecting GNS3 to VirtualBox, VMware, or KVM
- Incorporating Linux-based services (DHCP, DNS, FTP) into topologies
- Linking with network automation tools (e.g., Ansible)
Advanced Use Cases and Best Practices
- Employing GNS3 for network migrations and proof-of-concept testing
- Load testing, failover simulation, and performance optimisation
- Client demonstrations and architecture validation exercises
Summary and Next Steps
Requirements
- A solid grasp of network protocols and architectures
- Practical experience configuring network equipment, including routers, switches, and firewalls
- Familiarity with virtualisation and system administration tools
Target Audience
- Network engineers and system architects
- IT consultants responsible for network planning and migration
- QA and testing teams assessing network changes
- Professionals involved in lab-based replication of production environments
Testimonials (1)
communication, knowledge from experience, solve problems,
