Users Guide

Table Of Contents
Doc No. BC0054508-00 Rev. R
January 21, 2021 Page 280 Copyright © 2021 Marvell
19 Troubleshooting
Troubleshooting topics cover the following:
Hardware Diagnostics
“Checking Port LEDs” on page 282
“Troubleshooting Checklist” on page 282
“Checking if Current Drivers Are Loaded” on page 283
“Running a Cable Length Test” on page 284
“Testing Network Connectivity” on page 284
“Microsoft Virtualization with Hyper-V” on page 285
“Removing the Marvell 57xx and 57xxx Device Drivers” on page 288
“Upgrading Windows Operating Systems” on page 289
“Marvell Boot Agent” on page 289
“Linux” on page 289
“NPAR” on page 291
“Kernel Debugging Over Ethernet” on page 291
“Miscellaneous” on page 291
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).