Exercises

Exercises

22.1

In Figure 22.3 notice the times of all the acknowledgments (segments 5, 7, 9, 11, 13, 15, and 17): 0.170, 5.170,10.170,15.170,15.370, 20.170, and 25.170. Also notice the time differences between sending the data and receiving the ACK: 164.9, 18.5, 18.7, 18.8, 198.3, 18.5, and 19.1 ms. Explain what's probably going on .

22.2

In Figure 22.3 at time 25.174 a window of 767 is advertised, but 768 bytes are available in the receive buffer. Why the difference of 1 byte?



TCP.IP Illustrated, Volume 1. The Protocols
TCP/IP Illustrated, Vol. 1: The Protocols (Addison-Wesley Professional Computing Series)
ISBN: 0201633469
EAN: 2147483647
Year: 1993
Pages: 378

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