🚀 Latest All-in-One CCNA, CCNP & CCIE Study Guide
Welcome to the ultimate repository for Cisco Enterprise Networking certification preparation.
This repository contains my comprehensive, structured study guides and configuration notes covering the entire journey from CCNA (200-301) to CCNP (ENCOR 350-401, ENARSI 300-410), and ultimately CCIE Enterprise Infrastructure.
Whether you are just starting with networking fundamentals or preparing for your CCIE lab, this living document serves as a centralized “second brain” for all necessary protocols, configurations, and troubleshooting methodologies.
✨ Key Features
- Comprehensive Coverage: End-to-end knowledge base bridging the gap between basic routing/switching and advanced enterprise architecture.
- Deep Technical Dives: Focuses on underlying mechanics rather than just commands (e.g., precise ACL matching for OSPF using protocol 89, deep dives into BGP attributes, and STP/HSRP nuances).
- Ready-to-Use Lab Configs: Includes verified configuration snippets and topology notes tested in simulation environments.
- Network Automation: Integrates modern CCIE EI requirements, featuring Python scripts for automated device provisioning and data parsing.
- Structured for PKM: Optimized for Personal Knowledge Management (PKM) tools like Obsidian. Topics are modularly linked for easy navigation and review.
📚 Table of Contents
1. CCNA (200-301) - The Foundation
- Network Fundamentals & Access
- IP Connectivity & Routing Basics (OSPFv2)
- IP Services & Security Fundamentals
2. CCNP Core: ENCOR (350-401)
- Enterprise Architecture & High Availability
- Virtualization & Path Isolation (VRF, GRE, IPsec)
- Infrastructure Services (QoS, NTP, NAT)
- Network Assurance & SD-Access / SD-WAN Basics
3. CCNP Advanced Routing: ENARSI (300-410)
- Advanced IPv4/IPv6 Routing (OSPF, EIGRP, BGP)
- Complex Route Redistribution & Path Control
- VPN Technologies & MPLS Layer 3 VPNs
- Infrastructure Security & Deep Troubleshooting
4. CCIE Enterprise Infrastructure (v1.1)
- Software-Defined Infrastructure (SD-WAN & SDA)
- Transport Technologies & Multicast
- Network Programmability & Automation: Python, REST APIs, JSON/XML, and NETCONF/RESTCONF.
👨💻 About
This repository is maintained by Eric Li, a Senior Network Engineer (CCIE #22479), currently refreshing and documenting the latest Enterprise Infrastructure tracks. The goal is to build an open, highly organized digital garden for network professionals.
“Mastering networking is about understanding the packets, not just memorizing the syntax.”
🤝 Contributing & Feedback
If you find these notes helpful, feel free to ⭐ Star this repository! Suggestions, corrections, or pull requests regarding exam updates and topology configurations are always welcome.
Disclaimer: This repository is a personal study summary and is not officially affiliated with Cisco Systems. Always refer to the official Cisco blueprints for the most up-to-date exam topics.
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