1. A sample TCP pseudo code is shown below. What version of reliable data transf

Question

1. A sample TCP pseudo code is shown below. What version of reliable data transfer (rdt) is it using? Explain and point out features with the associated code in this particular version.

NextSeqNum = InitialSeqNum
SendBase = InitialSeqNum
Loop (forever) {
Switch(event)
evet:data received from application above
Creat TCP segment with sequence number NextSeqNum
If(time currently not running)
Star timer
Pass segment to IP
NextSeqNum = NextSeqNum + length(data)
event: ACK received ,with ACK field value of y
If(y > SendBase){
SendBase =y
If(there are currently not-yet acknowledged segments)
Start timer
}
} /* end of loop forever*/

Explanation / Answer

NextSeqNum = InitialSeqNum SendBase = InitialSeqNum Loop (forever) { Switch(event Pass segment to IP NextSeqNum = NextSeqNum + length(data) event: ACK received ,with ACK field value of y If(y > SendBase){ SendBase =y If(there are currently not-yet acknowledged segments) Start timer } } /* end of loop forever*/

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.