28-02-2013, 02:39 PM
The Data Link Layer
The Data.ppt (Size: 1.01 MB / Downloads: 75)
Data Link Layer Design Issues
Network layer services
Framing
Error control
Flow control
Possible Services Offered
Unacknowledged connectionless service.
Acknowledged connectionless service.
Acknowledged connection-oriented service.
Framing Methods
Byte count.
Flag bytes with byte stuffing.
Flag bits with bit stuffing.
Physical layer coding violations.
Error Correcting Codes (1)
Hamming codes.
Binary convolutional codes.
Reed-Solomon codes.
Low-Density Parity Check codes.
Elementary Data Link Protocols (1)
Utopian Simplex Protocol
Simplex Stop-and-Wait Protocol
Error-Free Channel
Simplex Stop-and-Wait Protocol
Noisy Channel