nnvbn,m.

1. Transport
Layer
Afsana Begum

2. Position of transport layer
1/29/2023

3. Process-to-Process
Delivery:
UDP and TCP
1/29/2023

4. Process-to-Process Delivery
Client-Server Paradigm
Multiplexing and Demultiplexing
Connectionless/Connection-Oriented
Reliable/Unreliable
1/29/2023

5. The transport layer is responsible for
process-to-process delivery.
Note:
1/29/2023

6. Types of data deliveries
1/29/2023

7. Port numbers
1/29/2023
Unit-4 : Transport Layer

8. IP addresses versus port numbers
1/29/2023
Unit-4 : Transport Layer

9. TCP
Byte Streaming
Full Duplex multiplexing
Segments
Connection Oriented (Reliability, 3 way
handshaking)
Flow and Error Control (Checksum)
1/29/2023
Unit-4 : Transport Layer

10. Size 20 bytes to 60 bytes
d.o.= Data Offset (header length)
Options and padding- to know mss

11. UDP
Port Numbers
User Datagram
Applications
1/29/2023

12. UDP is a connectionless, unreliable
protocol that has no flow and error
control. It uses port numbers to
multiplex data from the application
layer.
Note:
1/29/2023

13. User datagram format
1/29/2023

14. The calculation of checksum and its
inclusion in the user datagram are
optional.
Note:
1/29/2023