Welcome to ISIS.guru
Master IS-IS routing protocol from fundamentals to advanced implementation
The complete guide to Intermediate System to Intermediate System (IS-IS) routing protocol with hands-on examples, configuration tutorials, and interactive tools.
8 Chapters
Comprehensive Coverage
Interactive Tools
LSP Analyzer & More
Configuration
Real-world Examples
Packet Analysis
PDU Deep Dives
Your IS-IS Learning Journey
Chapter 1: Introduction
- • IS-IS Overview & History
- • Protocol Comparison
- • Key Terminology
Chapter 2: Fundamentals
- • OSI Model Integration
- • IS-IS Addressing
- • Hierarchy & Databases
Interactive Learning Tools
Quick Reference
IS-IS Key Facts
- Protocol: Link-State
- Algorithm: Dijkstra SPF
- Transport: Data Link Layer
- Hierarchy: Level-1/Level-2
- Metric: Cost-based
- Convergence: Fast
Common PDU Types
- Hello Adjacency
- LSP Link State
- CSNP Complete SNP
- PSNP Partial SNP
Pro Tips
Tip: Start with Chapter 1 to understand IS-IS fundamentals before diving into packet analysis.
Study Aid: Use the interactive tools alongside each chapter for hands-on learning.
Practice: Try the configuration examples in a lab environment for better understanding.
Ready to Get Started?
Begin your IS-IS journey with the fundamentals, or jump directly to any topic you're interested in. Each chapter builds upon previous concepts while remaining accessible for reference.