for establishing connection between the end systems
here we have 3 steps
sender receiver
sync bit ==1
1................................................>>>>
reply to sync bit + sync bit of receiver
2. <<<< .................................................
replay to R sync bit
3. ....................................................>>>>>
whole process is in three steps so we call it as three way handshake
TCP The three way handshake verifies that data arrived
transport layer
TCP initializea the sequence numbers for the sessions.
transport layer
TCP and UDP are transport layer protocols; the OSI layer is layer 4 (transport)
Application layer, and Transport layer.
transport layer
transport layer
TCP operates at transport layer
transport layer
The Transport Layer
Layer 4 (Transport) is responsible for correction.