Users Guide

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18 Troubleshooting
Troubleshooting topics cover the following:
 Hardware Diagnostics
 “Checking Port LEDs” on page 290
 “Troubleshooting Checklist” on page 290
 “Checking if Current Drivers Are Loaded” on page 291
 “Running a Cable Length Test” on page 292
 “Testing Network Connectivity” on page 292
 “Microsoft Virtualization with Hyper-V” on page 293
 “Removing the Marvell BCM57xx and BCM57xxx Device Drivers” on
page 296
 “Upgrading Windows Operating Systems” on page 297
 “Marvell Boot Agent” on page 297
 “QLASP” on page 297
 “Linux” on page 299
 “NPAR” on page 300
 “Kernel Debugging Over Ethernet” on page 301
 “Miscellaneous” on page 301
Hardware Diagnostics
Loopback diagnostic tests are available for testing the adapter hardware. These
tests provide access to the adapter internal and external diagnostics, where
packet information is transmitted across the physical link (for instructions and
information on running tests in Windows environments, see the QCC GUI online
help).