Diagnostic Testing Under Windows 3.x 105To run the Group 3 test on the network, you need a secondPC to serve as an echo server, and it must have a 3Com NICinstalled. The echo server receives packets from and echoespackets back to the NIC being tested. The diagnosticsprogram provided with the NIC supports the 3C509B echoserver diagnostics program.Setting Up an Echo ServerFollow these steps to set up an echo server:1 Insert the EtherDisk diskette for the echo server NICin drive A of the echo server.2 Start the diagnostics program on the echo server.The diagnostics program that you use is dictated by theNIC that is installed in the echo server. See Table 10. At theDOS prompt, enter the diagnostics program name for theassociated NIC.The main window of the diagnostics program is displayed.3 From the Test menu, select Echo Server, and thenclick Start.A message confirms that your PC is now set up as anecho server.Table 10 Diagnostics ProgramsDiagnosticsProgram Name NIC Installed in the Echo Server3C503.EXE EtherLink II or II TP, EtherLink II/16 or II/16 TP3C505.EXE EtherLink Plus3C507.EXE EtherLink 16 or EtherLink 16 TP3C508CFG.EXE 3Com Red3C5X9CFG.EXE EtherLink 10 family3C523.EXE EtherLink/MC3C523TP.EXE EtherLink/MC TP3C527.EXE EtherLink/MC 323C59XCFG.EXE EtherLink 10 EISA/PCI bus master family(including Fast EtherLink NIC running at10 Mbps)3C90XCFG.EXE EtherLink XL and Fast EtherLink XL family of NICsrunning at 10 Mbps
