Chapter 2 Advanced Routing for FortiOS 5.0 : Intermediate System to Intermediate System Protocol (IS-IS)
  
Intermediate System to Intermediate System Protocol (IS-IS)
 
 
This section describes the Intermediate System to Intermediate System Protocol (IS-IS).
The following topics are included in this section:
IS-IS background and concepts
Troubleshooting IS-IS
Simple IS-IS example