TCP와 관련된 수도코드입니다(자바프로그래밍 질문) <code>

일단 TCP 구현되는 수도코드는

NextSeqNum = InitialSeqNum
SendBase = InitialSeqNum

loop(forever){
switch(event)

event : data received from application above
create TCP segment with sequence number NextSeqNum
if(timer currently not running)
start timer
pass segment to IP
NextSeqNum = NextSeqNum + length(data)

event : timer timeout
retransmit not-yet-acknowledged segment with
smallest sequence number
start timer

event : ACK received, with ACK field value of y
if(y > SendBase){
SendBase = y
if(there are currently not-yet-acknowledged segments)
start timer
}
else { /* a duplicate ACK for already ACKed segment */
increment number of duplicate ACKs reveived for y
if(number of duplicate ACKs received for y==3) {
/* TCP fast retransmit */
resend segment with swquence number y
}
break;
}/* end of loop forever */

이거입니다.

이걸 설명해야되는데 프로그래밍초짜인 전 잘 모르겠습니다.

대충이라도 좋으니 이 수도코드 해석좀 도와주세요!ㅠㅠ