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11–Troubleshooting Guidelines
Check for System Errors
11-4 NE0154601-00 C
Check for System Errors
Linux
To check for system errors in Linux.
Check for error messages from the kernel using the following commands:
% dmesg
% cat /var/log/messages
Check routing table, gateway, and IP address conflicts for all interfaces
using the following command:
% route
Check network interface transmit and receive counts during pings using the
following command:
% ifconfig <network interface>
Use the wireshark, ethereal, tethereal, or tcpdump utility to capture
packets.
Windows Server
To check for system errors in Windows Server:
Use the
wireshark or ethereal utilities to capture packets.
Check for system error messages using the Windows event viewer.
Caveats
MSI-X Interrupts for Linux
Newer Linux OS distributions or kernel versions support MSI-X interrupts; some
older versions do not support MSI-X. If MSI-X is not available on the OS, then use
MSI or legacy mode in the OS.
Type the following command on the Linux host to check that PCI-MSI-X or
PCI-MSI is enabled for the Ethernet interface:
% cat /proc/interrupts
Determine if the installed Linux kernel has the MSI configuration option enabled
(earlier versions of the kernel may require an MSI patch).
Type the following command from the directory
/usr/src/kernels/<kernel
version>
and verify that the MSI configuration option is supported/enabled:
% make menuconfig