C H A P T E R 2 |
SunATM Adapter Test (atmtest) |
The atmtest checks the functionality of the SunATM-155 and SunATM-622 SBus and PCI bus adapters.
It runs only in loopback (external or internal) mode. The asynchronous transfer mode (ATM) adapter, and ATM device driver must be present. To run the atmtest in external loopback mode, a loopback connector must be attached to the ATM adapter. The internal loopback mode does not require a loopback connector.
atmtest uses DLPI RAW mode to talk to the device driver. It establishes a virtual circuit (VC) to send a message, receive a message, and compare messages. If the message does not match, or the message is out of sequence, it displays an error message.
Using a random number generator, atmtest sends data into a data buffer and then sends each message from a different starting point. This assures that no two consecutive messages are the same.
atmtest can test more than one virtual circuit. The more virtual circuits used increases the stress level of the test. atmtest automatically selects the virtual circuit number which is unique to the test.
atmtest is nonscalable because it provides multiple virtual circuits to be tested by a single instance.
atmtest can only be selected when the Intervention mode is enabled since it requires a loopback connector for external loopback testing. While Intervention mode is enabled, atmtest and nettest are both available as default selections; however, you must deselect nettest when testing the ATM device.
Bring the ATM interface down to make sure that the interface is in offline mode before running atmtest.
Note - The external optical loopback test requires a 62.5 micron cable. |
To reach the dialog box below, right-click on the test name in the System Map and select Test Parameter Options. If you do not see this test in the System Map, you might need to expand the collapsed groups, or your system may not include the device appropriate to this test. Refer to the SunVTS User's Guide for more details.
/opt/SUNWvts/bin/atmtest standard_arguments,-o dev=device,tpkts=n,nv=n,ml=n,bw=n,opkts=n| warn|ld|sd|sl|nc|ns,vcf=n
Note - 64-bit tests are located in the sparcv9 subdirectory: /opt/SUNWvts/bin/sparcv9/testname, or the relative path to which you installed SunVTS. If a test is not present in this directory, then it might be available as a 32-bit test only. For more information, see 32-Bit and 64-Bit Tests. |
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