CCIE Practical Studies: Security (CCIE Self-Study)

Summary

This chapter provided a general overview of the multitude of ISDN topics, as well as a more in-depth look at its working configurations and various solutions. ISDN concepts are comprehensive and complex, and many of them are beyond the scope of this book. However, you were introduced to the most important parts of ISDN that give you a solid base in your preparation for the CCIE Security practical exam.