Exercises

Exercises

7.1	Draw a time line for the ping output for the SLIP link in Section 7.2.
7.2	Calculate the RTT if the SLIP link between bsdi and slip is set to 9600 bits/sec. Assume the default of 56 bytes of data .
7.3	The current BSD ping program allows us to specify a pattern for the data portion of the ICMP message. (The first 8 bytes of the data portion are not filled with the pattern, since the time at which the packet is sent is stored here.) If we specify a pattern of 0 —c0, recalculate the answer to the previous exercise. (Hint: Reread Section 2.4.)
7.4	Does the use of compressed SLIP (CSLIP, Section 2.5) affect the ping times that we observed in Section 7.2?
7.5	Examine Figure 2.4. Do you expect any difference between a ping of the loopback address, versus a ping of the host's Ethernet address?