Presentation is loading. Please wait.

Presentation is loading. Please wait.

DATA COMMUNICATION Lecture-36.

Similar presentations


Presentation on theme: "DATA COMMUNICATION Lecture-36."— Presentation transcript:

1 DATA COMMUNICATION Lecture-36

2 Recap of Lecture 35 Checksum Single-Bit Error Correction

3 Overview of Lecture 36 Hamming Code Data Link Control Line Discipline
ENQ/ACK POLL/SELECT Flow Control

4 Hamming Code Each r bit is the VRC bit for one combination of data bits r1(r2) bit is calculated using all bit positions whose binary representation includes a 1 in the first(second) position, and so on

5 Hamming Code

6

7

8

9 Data Link Layer Functions

10 Data Link Layer Functions

11 Line Discipline The line discipline functions of the data link layer oversee The establishment of link The right of a particular device to transmit at a given time

12 Line Discipline Line discipline can be done in two ways ENQ/ACK
(peer-to-peer communication) Poll/select (primary-secondary communication)

13 Line Discipline

14 Summary Hamming Code Data Link Control Line Discipline ENQ/ACK
POLL/SELECT Flow Control

15 Suggested Reading Section 9.7, 10.1 “Data Communications and Networking” 2nd Edition by Behrouz A. Forouzan


Download ppt "DATA COMMUNICATION Lecture-36."

Similar presentations


Ads by Google