Lab: Multilevel IS-IS Deployments
IS-IS, similar to OSPF, includes scalability mechanisms with different router levels, and understanding multilevel IS-IS is facilitated by a lab exercise available on GitHub Codespaces.
MAIN POINTS
- IS-IS was designed for scalability with mechanisms similar to OSPF areas.
- Routers can be level-1, level-2, or level-1-2, akin to OSPF ABR.
- Multilevel IS-IS is rarely used today but is important to understand.
- A lab exercise by Dan Partelly helps explore multilevel IS-IS.
TAKEAWAYS
- IS-IS and OSPF share similar scalability features.
- Understanding IS-IS router levels is crucial for network design.
- Practical learning is supported by a lab exercise on GitHub Codespaces.
- The lab setup involves changing directories and executing specific commands.