340_S4

Use the hex converter  http://www.binaryhexconverter.com/  for the following exercises.

Submit the assignment answers in a 2- to 3-page Word document.

1. The address field of a Frame Relay frame is 1011000000010111. What is the DLCI in decimal? What is the DLCI in binary?

2. The address field of a Frame Relay frame is 101100000101001. Is this valid?

3. Find the DLCI value if the first 3 bytes received is 7C 74 El in hexadecimal.

4. Find the value of the 2-byte address field in hexadecimal if the DLCI is 178. Assume no congestion. 

5. How does Frame Relay differ from X.25?

6. What is SONET and SONET/SDH? What are the various devices that can interconnect to SONET?