VBrick Systems VB6000, VB4000, VB5000 manual Diagnostics Network Tests Data Test

Diagnostics: Network Tests > Data Test

Data tests are used primarily to test the integrity of a network connection between two VBricks. A loopback test takes all data received at the video IP port and retransmits the data to the configured transmit IP destination. A loopback test may be used to observe the quality of the video data after looping back at the destination. A loopback test is available only for encoder-decoder models and is bi-directional. If appliance "A" is set in "loop back," it will return any stream back to the originator.

Cell tests allow generation of a known data pattern and checking of the integrity of the data pattern on reception. This test is often useful to verify a network service line before video deployment. The transmit encoder generates the pattern and the receive decoder checks the pattern. Statistics indicating good packets and identifying bad packets are provided in the receive appliance. If you are using encoder-decoder models, the preferred method for running cell tests is to initiate and terminate the test on one VBrick and to put the other VBrick into loopback. The encoder can be configured to send a test pattern to any decoder that receives and performs integrity checks. The network destination address in both the encoder and decoder screens is used to direct all test packet data across the network. For this test scenario, the test may be run in a timed mode or continuously. Statistics are updated on the IWS page when you click the Refresh button.

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