We use a common environment for all the tests discussed in this section. This environment consists of two identical, dual 400-MHz Pentium IIs connected to each other via an Extreme Networks Summit 7i Gigabit Ethernet switch. Each machine contains 128MB of RAM, ATA-33 IDE hard drives, and both 100-Mbps (NetGear) and 1000Mbps (Alteon) Ethernet cards. All non-essential Linux services are disabled on the test machines, and no extraneous traffic is allowed on the network. MAGNeT is set to record a minimal set of information per event (i.e., the data field is not compiled into the MAGNeT build).