Content

| Summary

Concepts covered in this module include:

- Using a methodology for troubleshooting Layer 3 problems is important to isolate and identify the problem as quickly as possible.
- In most networks static routes are used in combination with dynamic routing protocols. Improper configuration of static routes can lead to less than optimal routing and in some cases create routing loops or parts of the network to become unreachable.
- Troubleshooting dynamic routing protocols require a thorough understanding of how the specific routing protocol functions. Some problems are common to all routing protocols while other problems are particular to the individual routing protocol.
- Troubleshooting redistribution between routing protocols requires an understanding of how the particular routing protocols function and how to redistribute their different metrics.