Using the 3Com DOS Diagnostics Program 77Running the Group 3 TestsThe Group 3 tests verify the ability of the NIC to send andreceive data on the network. Group 3 consists of two tests: Transmit/Receive Test Echo Server TestRunning the Transmit/Receive TestThe Transmit/Receive Test checks the ability of the NICto exchange packets with another computer. To runthe Transmit/Receive Test, two PCs with 3C985B-SXserver NICs installed are required: one PC to transmit dataand one PC to receive data.CAUTION: Running the Transmit/Receive Test whileconnected to an active network can cause intermittentfailures. To avoid this, connect to an inactive networkon which only the PCs being tested are operating.To run the Transmit/Receive Test:1 Make sure that a 3C985B-SX server NIC is installed inthe transmitting PC and connected to the network.2 Install a 3C985B-SX server NIC in another PC (thereceiving PC) and connect it to the network.3 Launch the DOS diagnostics program on both PCs.4 On the receiving PC:a From the Select menu item on the main screen, selectthe NIC to be tested.b From the Test menu, select Test Setup.c Select Group 1, and select Disable Group.d Select Group 2, and select Disable Group.e Enable the Transmit/Receive test by selecting Group 3,selecting Transmit/Receive Test, and pressing the spacebar.f Click OK.The main screen reappears.g From the Test menu, select Receiver.The Transmit/Receive Receiver screen appears.
