One would expect the loss of some segments during network link failures for TCP

Question

One would expect the loss of some segments during network link failures for TCP connections. If a link fails and segments are lost, TCP cuts down its window size after detecting the loss. Unicast routing adapts to the failed link (that was on the shortest path) by routing through another path (longer tah the failed path).
Describe the behavior of the TCP connection when the old route becomes available again. (Consider the case where TCP window size is such that the communication pipe b/w the sender and the receiver on the longer path is filled with segments. Assume the same data rate on all links.)

Explanation / Answer

TCP makes a connection including the old routes when it is available again. If the cost of the old route is less than any other routes, or it provides the shortest path, TCP uses the old route. When there are routes better than the old route the TCP uses thoses connections.

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

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