The second set of tests is dedicated to investigate the behaviour of the Zeroconf implementation system when new devices join a network. In other words, we added two other Linux Debian machines (Fig. 9) with the same characteristics (identical Dell machines) to the network in order to measure the discovery time with increasing number of end-systems. Each of the four tests was conducted in each Linux machine. The results (shown in Table 6) indicate that the time required to discover machines 3 and 4 is greater than the time for discovering machines 1 and machine 2. The additional time taken in the former case can be attributed to the process of auto-configuration that takes place to set up the new machines in the network. Similarly, machine 1 for example discovers machine 3 after that machine 4 does since machine 3 and machine 4 joined the network late after machine 1 and 2. The printers’ and printers’ web page discovery times are practically the same as in the previous test: there is no significant variation in the results in this case.