Core IGP
OSPF labs
Build neighbor relationships, design areas, read LSAs, and diagnose adjacency failures.
- Areas
- LSAs
- Neighbors
Practical Cisco labs
Build routing skill with guided protocol labs.
Work through routing protocols and Python network automation from first principles to practical engineering workflows. Each path is arranged for guided study, revision, and hands-on practice.
OSPFareas, LSAs, neighbors
EIGRPDUAL, metrics, repairs
RIPtimers, versions, loops
BGPpolicy and path control
Pythonscripts and automation
Choose a protocol path
Start with the routing behavior you want to practice, then move into verification and troubleshooting once the baseline works.
Protocol workbenches
Pick a lab and start building
Each path moves from core behavior to configuration, verification, and fault isolation.
Cisco IGP
EIGRP labs
Understand DUAL, feasible successors, composite metrics, and rapid repair workflows.
- DUAL
- Metrics
- Repair
Fundamentals
RIP labs
Explore distance-vector routing, timers, versions, authentication, and loop prevention.
- RIPv2
- Timers
- Loops
Advanced
BGP labs
Form sessions, evaluate path attributes, apply routing policy, and verify best paths.
- Peering
- Policy
- Best path
Automation
Network Automation
Learn Python fundamentals with examples designed for network engineers and automation workflows.
- Python
- Scripting
- APIs
- Open Python automation hub
- Introduction to Python
- Python Installation
- Python Print Function
- Python Variables
- Numeric Types and Strings
- Python Collections
- Python Operators
- Python Arithmetic Operators
- Python Assignment Operators
- Python Comparison Operators
- Python Logical Operators
- Python If, Elif, Else
- Python Loops
- Python While Loop
- Python For Loop
- Python Membership Operators
- Python Identity Operators
- Python Bitwise Operators
- Python Functions
- Python Scope
- Python Modules
- Python PIP
- Python Read and Write Files
- Python Try Except
- Python User Input
Fresh from the library
Latest technical guides
New practical reads for the systems that sit around your network.
Linux network and communication commands
Troubleshoot connectivity with ping, traceroute, netstat, and secure modern alternatives.
Read guideFind, grep, and strings with practical examples
Search files, configuration, logs, and readable binary content safely and efficiently.
Read guideEssential Linux utility commands
Use man, bc, cal, yes, size, and other everyday utilities with safe, practical examples.
Read guideA repeatable method
Build, break, verify, repeat.
Use the same five-step rhythm in Cisco IOS, Packet Tracer, GNS3, EVE-NG, or comparable equipment.
- 01Read the behavior
Know the algorithm, metric, timers, and neighbor requirements.
- 02Build the baseline
Address two or three routers and prove direct connectivity.
- 03Configure and verify
Check neighbors, protocol databases, routes, and forwarding.
- 04Create one failure
Change an area, policy, passive interface, or physical link.
- 05Restore and document
Prove recovery and record the command that exposed the cause.
Before you call it working
The six-point verification pass
Validate the control plane and the data plane after every meaningful change.
- Interfaces are up/up
- Neighbors are stable
- Database has the prefix
- Routing table has the best route
- Traffic works both ways
- Logs remain stable