CS779/879

Assignment #3

Due Midnight, Wednesday April 1, 2009

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Part 1:

Write a server and client programs to measure the relationship between the backlog value of the listen call and the maximum number of successfully completed TCP connections waiting to be accepted by the server.

The names and syntax of the programs are:

BLServer <port> <backlog>

BLClient <host> <port>

Use tcpdump (with option –ttt) to record the time interval between BLClient unacknowledged SYN segments.

Example:

something % sudo tcpdump –i hme0 –ttt port 10111

somethingmore % BLServer 10111 0

somethingelse % BLClient somethingmore 10111

The number of accepted TCP connections: 1

Part 2:

Reimplement Assignemt #1 using select or poll instead of fork.