Testbed

The following machines were used in all tests:

• Hewlett Packard 9000/777/C110, Uniprocessor 120MHz, 256MB Ram, motherboard-integrated 10BaseT network interface card; loaded with two versions of the HP-UX operating system: HP-UX 10.2 Release B.10.20 Version A, and HP-UX 11.0 Release B.11.00 Version A. This machine was used as the server.

• Sun Ultra-II Sparc 10, Sparcv9 Uniprocessor 440MHz, 512MB Ram, motherboard-integrated 10/100BaseT network interface card, running SunOS 5.7. This machine was used as the client.

All tests were done using the netperf [12] performance benchmarking utility. All machines were connected via crossover cable for TCP and UDP point-to-point latency tests. For multiple-client, server tests, all machines were connected to an unloaded Netgear 24-port 10/100Mbps Fast Ethernet switch.