HP StorageWorks MSA 2/8 HP StorageWorks Fabric OS V3.1.x/4.1.x Reference Guide - Page 769
for ISL link, This test is best combined with the online
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spinFab The frames are continuously transmitted and received to all ports in parallel. The port LEDs flicker green rapidly while the test is running. While the frames are circulating, the RX frame count and port CRC and encoder error statistics are monitored and errors will be generated if a port stops or a low level error occurs. Every one million frames the circulating frames will be captured to verify that they are still circulating and that they are still in-order. In this manner the entire path to the remote switch may be verified. Note: When trunk groups are present, then entire trunk group must be included in the range of ports to test or false failures may occur. If multiple ISL links are present between two switches that support trunking then it is likely that trunk groups are present and all ports between the two switches should be tested at the same time. The switch will remain in normal operation while this test is running; however some performance degradation will occur due to the ISL links being saturated with test frames. Because of this you should use caution when running this test on live fabrics, consider only testing one ISL link at a time, and do not run the tests for extended periods of time. This test is best combined with the online crossPorttest for ISL link failure isolation. If this test fails, replace the cable with a loopback plug and run crossporttest to verify the local switch and SFP. If these tests pass then the fault lies in the cable or remote switch/SFP. The frames are continuously transmitted and received in all ports in parallel. The port LEDs flicker green rapidly while the test is running. Note: When trunk groups are present, then entire trunk group must be included in the range of ports to test or false failures may occur. If multiple ISL links are present between two switches that support trunking then it is likely that trunk groups are present and all ports between the two switches should be tested at the same time. Fabric OS Version 3.1.x/4.1.x Reference Guide 769
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