Leased Lines
Lesson 5: T1/E1
Of all the WAN topics mentioned in this book, leased lines and Frame Relay obviously get the most attention. Chapter 12, “Implementing Point-to-Point WANs,” already discussed leased lines, and the data link protocols most often used with them, in some depth. Why mention more about them here in this chapter? To set the stage to make comparisons to the other WAN technologies introduced in this chapter.
One of the ICND2 (and CCNA) exam topics states that you need to be ready to identify various WAN technologies. So, in what ways can you identify leased lines when you see them on the exam? To review a few items, consider ...
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