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Computer Network (01AI0404 ). Presentation on. TCP Header Structure.
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TCP Header Structure. Source Port (16 bits): Sender application port Destination Port (16 bits): Receiver application port Sequence Number (32 bits): Byte order tracking Acknowledgment Number (32 bits): Next expected byte Header Length: Size of TCP header.
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Remaining Fields & Importance. Flags: SYN, ACK, FIN, RST control connection Window Size: Flow control amount Checksum: Error detection Urgent Pointer: Urgent data position Options + Padding: Extra features, alignment Importance: Reliable and ordered data transfer.