Linux Network Info
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Internal
Network Interfaces
ip
To see all network interfaces present on the system: Linux ip#Show_All_Network_Interfaces_and_Their_Details.
To see details about a specific network interface: Linux ip#Show_Details_for_a_Specific_Network_Interface.
For more details see ip.
ifconfig
Performance Characteristics
Go to /sys/class/net/eth0/
Then:
cat speed
Performance characteristics can also be obtained with:
Vendor
lspci | grep -i Ethernet
More about
Driver Information
Using dmesg and modinfo
Grep the dmesg messages for "Ethernet" to figure out the name of the network driver:
dmesg | grep -i ethernet [ 2.304678] tg3 0000:02:00.0 eth0: attached PHY is 5720C (10/100/1000Base-T Ethernet) (WireSpeed[1], EEE[1]) ...
The name of the driver loaded in the kernel is "tg3".
To
Using ethtool
lshw
Using OpenManage UI on Dell Servers
System -> Main System Chassis -> Network -> Click on interface -> Driver Name/Driver Version.