Computer Network ????????? TCP Connection Termination ???????????? ???????????? ???????

?????? ?????? ?????? ??????????????? ????????? ?????? ?????? ??????????????? ?????????????????? ?????? TCP ???????????? 3-way handshake process ?????? ?????????????????? ?????? connection ??????????????? ?????? ?????? ???????????? 4-way handshake ?????? ??????????????? ???????????? ???????????????????????? ??????????????? ?????? connection close ???????????? ????????? TCP Connection Termination ?????? ???????????? ????????? ??????????????? ?????? ???????????? ?????? ???????????? ?????? ????????? ???????????? ?????? ?????? TCP ???????????? ???????????? ????????? ?????? ???????????? ???????????? ???????????? ?????????

What is TCP in Hindi? - ?????????????????? ???????????? ???????

???????????????????????? ????????????????????? ????????? TCP ?????? connection-oriented protocol ???????????? ??????, ??????????????? ?????? ???????????? ???????????? ?????? ?????? ?????? ???????????? ???????????? sender ?????? receiver ?????? ????????? ?????? handshake ?????? ????????? ????????? ?????? ????????????????????? ?????? ??????????????? ????????? ????????? ???????????? ????????? ?????? ??????????????? ????????? ?????? connection verify ?????? ???????????? ??????, ?????? ???????????? ????????? TCP ????????? packets ??????????????? ?????? ????????????????????? ???????????? ?????? ???????????? ????????? ?????? transmission ?????? ???????????? ????????? ?????? error-free ??????????????? ?????? ?????? data ?????? delivery ?????? ??????????????????????????? ???????????? ????????? 

TCP ????????????????????? ?????? ????????????????????? devices ?????? ?????? ??????????????? ?????? ??????????????? ?????? ????????? ??????????????? ???????????? ???????????? communication protocols ?????? ???????????? ?????? ????????? ?????? ?????????????????????????????? ?????????????????? ????????? ??????????????? ???????????? ?????????????????? ????????? ??????????????? ?????? internet system ?????? ?????? ???????????? ????????? network ?????? ?????????????????? ?????????

TCP ?????? ?????? ?????? ?????? common protocol ??????, ?????? end-to-end ???????????? ?????? ???????????????????????? ????????? ???????????? ?????? ?????????????????? ????????? ????????? ???????????? ????????? ?????? ?????? ????????? sender ?????? receiver ?????? ????????? ????????? ?????? ???????????????????????? connection ???????????? ???????????? ?????? ????????? ???????????? ????????? ???????????? ?????? ??????????????? ?????? transmitter ???????????? ?????? ?????????????????? server ????????? ???????????? ??????, ?????? receiver ?????? client ????????? ???????????? ????????? ??????????????? ?????????????????? ????????? ????????? ????????? ?????? Data ?????? ???????????? - ?????????????????? server ?????? client ?????? ????????? ???????????? ????????? 

????????? ????????? ?????? TCP ?????? ??????????????? ???????????????????????? high-level protocols ????????? ???????????? ???????????? ??????, ???????????? - SMTP (Simple Mail Transfer Protocol), FTP (File Transfer Protocol), ?????? HTTP (Hyper Text Transfer Protocol).

What is TCP Connection Termination in Hindi?

TCP ?????? ?????? ??????, connection install ???????????? ?????? ????????? ?????? 3-way handshake ?????? ??????????????? ???????????? ?????? ?????? connection ?????????????????? ???????????? ?????? ????????? 4-way handshake ?????? ??????????????? ???????????? ????????? ?????? process ????????? ????????????????????? ?????? ??????????????? ?????? ????????? FIN (Finish)?????? ACK (Acknowledgment) packets ?????? exchange ???????????? ??????, ??????????????? ????????????????????? systematically ?????? reliably ????????? ?????? close ???????????? ????????? ?????? termination process ?????? ???????????? ????????? ???????????? ???????????? ?????? ?????? network ?????? resources effectively manage ????????? ???????????? ?????????

TCP 3-Way Handshake in Hindi?

TCP ????????? Handshake ?????? ???????????? ?????? ???????????? ?????? ?????? client ?????? server ?????? ????????? ???????????? connection ?????? ?????? ?????? ????????? ????????????????????? ????????????, ???????????? communication possible ?????? ???????????? ???????????? ?????????????????? ????????? ????????? ??????, TCP ?????? handshake ?????? 3 -way handshake ?????? ??????????????? ?????? ?????? ???????????? transfer ?????? ????????? ???????????? ??????????????? ???????????? ????????? 

Reliable data transmission ?????? ?????????, TCP (Transmission Control Protocol) ???????????? ?????? ??????????????? ?????? ???????????? ?????? 3 -way handshake ?????? ??????????????? ???????????? ?????????

TCP ?????????, reliable communication ?????? ???????????? ?????? ????????? Positive Acknowledgement Re-transmission (PAR) ?????? ???????????? ??????????????? ???????????? ???????????? ????????? ?????? ????????? ?????? ????????? sender ???????????? ?????????????????? ?????? data ?????? receiver ?????? ????????? ??????????????? ??????, ?????? ???????????? ????????? receiver ?????? ?????? positive acknowledgement ??????????????? ???????????? ????????? 

?????? ?????? confirm ???????????? ?????? ?????? data ????????? ??????????????? ?????? receive ?????? ????????? ????????? ????????? ???????????? ???????????? ?????? ?????? acknowledgement sender ?????? ???????????? ????????????????????? ??????, ?????? ???????????? ?????? ???????????? ??????????????? ???????????? ????????? ????????? ?????? ?????? process ?????? ?????? ??????????????????????????? ???????????? ??????, ?????? connection ???????????? ????????? ?????? ????????? ?????? reliable ????????????

???????????? ?????? SYN-SYN-ACK ?????? ???????????? - ???????????? ?????? ????????? - ????????? ???????????? ?????? ???????????? - SYN ?????? ???????????? "synchronize sequence number", ?????? ACK ?????? ???????????? "acknowledgment" ???????????? ????????? ??????????????? ?????? ?????? step ?????? ?????? ?????? handshake ???????????? ?????? ?????? sender ?????? receiver ??????????????? ?????? communication ???????????? ?????? ????????? align ???????????? ?????????

?????? process ?????????, server ?????? ?????? ?????? sender ?????? ????????? ????????? ????????? ???????????? ??????, ?????? client ?????? ???????????? ?????? ?????? data ?????? receive ???????????? ?????? ????????? ???????????? ????????? ???????????? ?????? ?????? ????????? ???????????? ????????? ?????? diagram ????????? ??????????????? ???????????? ?????? ?????? successful connection ?????? ???????????? ???????????? ?????? 3 steps ????????? ????????? ?????? ???????????? ??????, ???????????? ?????? ????????? ?????? 3-way handshake ?????? ????????? SYN-SYN-ACK ?????? ????????? ?????? ???????????? ????????? ?????? handshake ?????? ensure ???????????? ?????? ?????? client ?????? server ??????????????? ???????????? ?????? exchange ???????????? ?????? ????????? ???????????? ??????????????? ?????????

???????????? ?????? ???????????? ???????????? ????????? steps ????????? 3-handshakes ?????? ???????????? ????????? describe ???????????? ??????:

Step 1: SYN

SYN ?????? ??????, ?????? ?????? segment ?????? ????????? ?????? client ?????????????????? server ?????? ???????????? ???????????? ????????? ?????? segment, Relation ?????? ???????????? ???????????? ??????????????? ???????????? ?????? ?????? ?????? TCP connection ?????? establish ???????????? ?????? ?????? first step ???????????? ????????? ?????? client ?????? server ??????????????? ?????? ????????? Relationship Request ?????? Provided ???????????? ????????? ???????????? ?????????????????? ?????? server ?????? ?????? informed ???????????? ???????????? ?????? ?????? ????????????????????? Relation Provided ???????????? ??????????????? ?????????

SYN segment ????????? sequence Number ?????? coordination ???????????? ?????? ??????????????? ???????????? ????????? ???????????? SYN ?????? ?????? ?????? ???????????? ?????? ?????? ????????? - ????????? devices ?????? ????????? sequence Number ?????? ?????????????????? ???????????? ???????????? ????????? ?????????????????? ???????????? ????????? SYN segment ????????? Relation ?????? request ?????? ????????? - ?????????, Sequence Number ??????????????? ?????? ????????? ?????? ???????????? ??????, ??????????????? ??????????????? ???????????? ????????? ?????? ?????? response ??????????????? ?????? ????????? ????????? Sequence Number ????????? ????????? ???????????? ?????????

Step 2: SYN-ACK

?????? ?????? SYN-ACK segment ?????? SYN + ACK segment ?????? ?????? ????????????????????? ?????? ??????????????? ?????????????????? ???????????? ????????? ??????????????? ACK ?????? SYN ??????????????? ?????????????????????????????? ??????????????? ???????????? ????????? ??????????????? ACK segment ?????? ??????, ?????? client ?????? ?????? informed ???????????? ?????? ????????? ???????????? ??????, ?????? ??????????????? ?????? ???????????? connection request ?????? receive ?????? ???????????? ????????? ????????? ?????? ?????? ????????? ?????? ?????? ?????? ????????????????????? ???????????????????????? ???????????? ?????? ????????? ??????????????? ?????? ???????????? ????????? ?????? SYN segment server ?????? ?????? sequence number ?????? evident ???????????? ?????? ??????????????? ???????????? ?????? segments ??????????????? ?????? first stage ????????? ?????????

?????? ????????? SYN + ACK segment ????????? server ?????? ?????? ?????? client ?????? sequence number ?????? ?????? ?????????????????? ???????????? ?????? ?????? ???????????? ????????? ?????? ?????? ????????? sequence number ???????????????????????? ???????????? ??????, ??????????????? ?????????????????? ?????? reliable ?????? sync connection ?????? ??????????????? Establish ????????? ????????? ???????????? ????????? client ACK segment ?????? ??????????????? ??????????????? ?????? sequence ?????? Accept ???????????? ?????? ?????? data transfer ?????? ????????? ??????????????? ????????????????????? ?????? ???????????? ?????????

Step 3: ACK (Acknowledgement)

ACK (Acknowledgment) ?????? ?????? ?????? TCP connection ?????? ??????????????? ?????? ???????????? ??????????????? ??????????????? ??????, ?????? client ?????? server ??????????????? ?????? ????????? ?????? successful ??????????????? ????????????????????? ???????????? ????????? ?????? ?????? ACK segment ?????? ?????? client ?????? ?????????????????? server ?????? ???????????? ?????? ACK ?????? SYN ?????? response ??????, ??????????????? ??????????????? ?????????????????? ???????????????????????? ???????????? ????????? ???????????? ????????? ?????? ????????? ?????? ?????? segment reliable ???????????? ????????????????????? set-up ???????????? ??????, ?????? data transfer ?????? ????????? ???????????? ??????????????? ???????????? ?????????

?????? ???????????? steps ?????? ?????????, client ?????? server ??????????????? ?????? ????????? ???????????? communication ?????? ????????? ???????????? ????????? ?????? ??????????????? ???????????? ????????? TCP connection ???????????? ?????? full-duplex mode ????????? operate ???????????? ??????, ???????????? ?????? ???????????? ?????? ?????? ???????????? ?????? ?????? ?????? ?????? ?????? ????????? ????????? ??????????????? ??????????????????????????? ????????? ?????????????????? ?????? ???????????? ??????, ??????????????? communication ????????? flexibility ?????? efficiency ?????? ?????????????????? ?????? ???????????? ????????? ?????? ?????????, ?????? process network communication ?????? ????????????????????? ?????? data integrity ?????? ensure ???????????? ????????? ???????????? ?????? ?????????????????????????????? role play ???????????? ?????????

TCP 4-Way Handshake in Hindi?

????????? ?????? ?????????????????? ?????? ??????????????? ????????????????????? ???????????? ?????? ???????????? ???????????? ????????? ???????????? ?????? ??????????????? ???????????? ????????? ?????? ?????? ????????? TCP ?????? ????????????????????? ?????? ??????????????? ?????? ????????? ???????????? ??????????????? ?????? ???????????? ??????????????? ????????????????????? ???????????? ?????? ????????? 3-way handshake ?????? ??????????????? ???????????? ????????? ????????? ????????? ?????????, data transmission ?????? ????????? ???????????? ?????? ????????? 4-way handshake ?????? ??????????????? ???????????? ????????? 

TCP termination ?????? ????????? ??????????????? segments ?????? TCP connection ????????? segment ??????????????? ?????? ???????????? ?????? ???????????? ?????? ???????????? - ACK ?????? SYN, ??????????????? ??????????????? ???????????? ??????????????? FIN segment ?????? ??????????????? ???????????? ????????? FIN segment ?????? ???????????? ?????? ?????? ?????? ?????????????????? ?????? ???????????? ??????????????? ?????????????????? ?????? ???????????? ?????? termination request ?????? ????????????????????? ?????????

Data transmission process ????????? client ?????? ?????? ?????? ?????? data transmitter ?????? ?????? server ?????? ?????????????????? ?????? ????????? ????????? ????????? ???????????? ???????????? ????????? ???????????? ????????? ?????? 4-way handshakes ???????????????????????? ????????? ???????????? ??????????????? ?????? ?????? ????????? ????????? client ?????? server ?????? ????????? segments ?????? ???????????? - ?????????????????? ???????????? ?????????

????????? ????????? ?????? 4-way handshakes ?????? ???????????????????????? ?????? ????????????????????? ?????? ???????????? ???????????? ????????? words ????????? describe ???????????? ??????:

Step 1: FIN (Finish)

FIN ?????? ???????????? ?????? ?????? client ?????????????????? ??????????????? ?????? ???????????? ????????? termination request ???????????? ??????, ?????? TCP connection ?????? systematic ??????????????? ?????? ??????????????? ???????????? ?????? ?????????????????? ???????????? ????????? ??????????????? ???????????? ????????????????????? FIN packet ??????????????? ??????, ??????????????? ???????????? connection ?????? ???????????? ?????? ?????? "half-closed" ????????? ????????? ???????????? ????????? 

??????????????? Server ACK packet ??????????????? FIN ?????? confirm ???????????? ??????, ?????? ???????????? FIN ??????????????? ?????? ????????? ?????? ????????????????????? ???????????? ACK ???????????? ????????? ???????????? ?????????, ????????????????????? ????????? ????????? ?????? ????????? TIME_WAIT state ????????? ???????????? ?????? ???????????? final ACK packet ?????? ??????????????? ?????? ?????????????????? ?????? ???????????? ?????? ????????????????????? reliable connection termination ?????? resource management ?????? ??????????????????????????? ???????????? ?????????

Step 2: FIN_ACK_WAIT

Client, server ?????? FIN termination request ?????? ACK ?????? ?????????????????? ???????????? ??????, ?????? connection ?????? terminate ???????????? ?????? ?????? Waiting Stage ????????? ???????????? ????????? ?????? ??????????????? client server ?????? confirmation ?????? ?????????????????? ???????????? ??????, ???????????? ??????????????????????????? ????????????????????? ???????????? ?????? ????????????

Step 3: ACK (Acknowledgment)

?????? ????????? ?????? server ?????? FIN (Finish) termination ?????? request ????????????????????? ???????????? ??????, ?????? ?????? ACK (Acknowledgment) segment ?????? ??????????????? ????????? ??????????????? ?????? ????????????????????? ???????????? ?????? ?????? ??????????????? connection close ???????????? ?????? terminate ???????????? ?????? ????????? ??????????????? ?????????

Step 4: FIN _WAIT_2

??????????????? Client server ?????? FIN segment ?????? ?????????????????? ???????????? ??????, ?????? ?????? Approved signal ???????????? ?????? ?????? ?????? signify ???????????? ?????? ?????? server ?????? ?????? ?????? ?????? connection ?????? ???????????????????????? ????????? ?????? ???????????? safely terminate ???????????? ?????? ????????? ???????????? ????????? ??????????????? ????????? FIN segment ?????? ?????????????????? ?????? client ACK (Acknowledgment) packet ??????????????? ??????, ?????? ??????????????? ?????? termination request ?????? confirmation ???????????? ????????? 

???????????? ????????? client ????????? ????????? ?????? ????????? TIME_WAIT state ????????? ???????????? ?????? ???????????? ????????? ?????? pending ????????????????????? ???????????????????????? ????????? ?????? ????????????????????? ?????? ????????? ?????? ????????????????????? ?????? ???????????? ????????? ?????? delay ?????? ???????????? ????????????????????? ?????? ????????? ?????? ??????????????? ?????? ??????????????? ??? ????????? ?????? ????????????????????? TCP connection ?????? orderly terminate ???????????? ?????? resources ?????? ???????????? ???????????? ????????? ?????????????????? ???????????? ?????????

Step 5: FIN (Finish)

?????? server ?????????????????? ????????????????????? ?????? FIN segment ???????????? ???????????? ??????, ?????? ?????? confirmation signal ???????????? ????????? ?????? server ?????? ????????? ?????? ??????????????????????????? ?????? ??????????????? ?????? confirmation ???????????? ?????? ?????? ?????? Display ???????????? ?????? ?????? connection ?????? close ???????????? ?????? ?????????????????? ????????? ?????? ?????????

Step 6: ACK (Acknowledgement)

?????? ???????????? ??????????????? ????????? client server ?????? ACK (Acknowledgement) segment ??????????????? ??????, ?????? FIN signal ?????? ????????????????????? ???????????? ?????? confirmation ???????????? ????????? FIN signal, server ?????? ????????? ?????? connection terminate ???????????? ?????? sign ???????????? ????????? ???????????? ?????? server ACK segment ????????????????????? ???????????? ??????, ?????? ????????????????????? ?????? ???????????????????????? ?????? ???????????? ?????????

???????????????????????? (Conclusion)

?????? ???????????? ????????? ???????????? ?????? ?????? ???????????? ??????????????? ?????? ??????????????? ??????????????? ???????????? ???????????? ?????? ???????????? ?????? ???????????? ?????????????????? ????????????????????? ????????????????????? ???????????? ??????? (TCP Connection Termination in Hindi) ?????? ???????????? ???????????????????????? ????????????????????? ????????? ?????? ??????????????? ????????? ???????????? ????????? ?????? ??????????????? ??????????????? ?????? ???????????????????????? ????????? ?????? ?????????????????? ?????? ?????? ?????? ???????????? ??????????????? ?????? ??????????????? ????????? ???????????? ????????? ?????? ?????? ?????????????????? ?????? ???????????? ?????? ???????????????????????????