Linux Network Info: Difference between revisions
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=Internal= | =Internal= | ||
* [[Linux#Getting_Runtime_Information]] | * [[Linux#Getting_Runtime_Information|Linux Runtime Information]] | ||
=Network Interfaces= | =Network Interfaces= | ||
| Line 14: | Line 14: | ||
==ifconfig== | ==ifconfig== | ||
=Performance Characteristics= | |||
Go to <tt>/sys/class/net/eth0/</tt> | |||
Then: | |||
<pre> | |||
cat speed | |||
</pre> | |||
Performance characteristics can also be obtained with: | |||
<blockquote style="background-color: #f9f9f9; border: solid thin lightgrey;"> | |||
:[[ethtool]] | |||
</blockquote> | |||
=Vendor= | |||
<pre> | |||
lspci | grep -i Ethernet | |||
</pre> | |||
More about {{Internal|lspci|lspci}} | |||
=Driver Information= | |||
==Using dmesg and modinfo== | |||
Grep the dmesg messages for "Ethernet" to figure out the name of the network driver: | |||
<pre> | |||
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]) | |||
... | |||
</pre> | |||
The name of the driver loaded in the kernel is "tg3". | |||
To get the driver version, <span id="modinfo"></span>use <tt>[[modinfo]]</tt>: | |||
<pre> | |||
modinfo tg3 | |||
</pre> | |||
<pre> | |||
[root@noper430 ~]# modinfo tg3 | |||
filename: /lib/modules/3.10.0-514.16.1.el7.x86_64/kernel/drivers/net/ethernet/broadcom/tg3.ko | |||
firmware: tigon/tg3_tso5.bin | |||
firmware: tigon/tg3_tso.bin | |||
firmware: tigon/tg3.bin | |||
version: 3.137 | |||
license: GPL | |||
description: Broadcom Tigon3 ethernet driver | |||
author: David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com) | |||
rhelversion: 7.3 | |||
srcversion: D276F97F491ADECC61C8284 | |||
alias: pci:v000010CFd000011A2sv*sd*bc*sc*i* | |||
... | |||
signer: CentOS Linux kernel signing key | |||
sig_key: 3F:E1:EB:8B:4F:91:D4:84:CD:55:44:84:54:A0:24:DE:56:34:E1:06 | |||
sig_hashalgo: sha256 | |||
parm: tg3_debug:Tigon3 bitmapped debugging message enable value (int) | |||
</pre> | |||
==Using ethtool== | |||
<pre> | |||
ethtool -i eth0 | |||
driver: tg3 | |||
version: 3.137 | |||
firmware-version: FFV20.2.17 bc 5720-v1.39 | |||
expansion-rom-version: | |||
bus-info: 0000:02:00.0 | |||
supports-statistics: yes | |||
supports-test: yes | |||
supports-eeprom-access: yes | |||
supports-register-dump: yes | |||
supports-priv-flags: no | |||
</pre> | |||
==lshw== | |||
Use [[lshw]]: | |||
<pre> | |||
lshw -class network | |||
</pre> | |||
The driver information is listed under "configuration": | |||
<pre> | |||
configuration: ... driver=tg3 driverversion=3.137 firmware=FFV20.2.17 bc 5720-v1.39 ... | |||
</pre> | |||
==Using OpenManage UI on Dell Servers== | |||
System -> Main System Chassis -> Network -> Click on interface -> Driver Name/Driver Version. | |||
For more on OpenManage see: | |||
{{Internal|Dell OpenManage Server Administrator|Dell OpenManage Server Administrator}} | |||
=Hostname= | |||
<blockquote style="background-color: #f9f9f9; border: solid thin lightgrey;"> | |||
:[[Linux_Hostname#Getting_the_Hostname|Getting the Hostname]] | |||
</blockquote> | |||
=<tt>iftop</tt>= | |||
<blockquote style="background-color: #f9f9f9; border: solid thin lightgrey;"> | |||
:<tt>[[iftop]]</tt> | |||
</blockquote> | |||
=host= | |||
{{Internal|host|host}} | |||
Latest revision as of 04:35, 19 March 2020
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 get the driver version, use modinfo:
modinfo tg3
[root@noper430 ~]# modinfo tg3 filename: /lib/modules/3.10.0-514.16.1.el7.x86_64/kernel/drivers/net/ethernet/broadcom/tg3.ko firmware: tigon/tg3_tso5.bin firmware: tigon/tg3_tso.bin firmware: tigon/tg3.bin version: 3.137 license: GPL description: Broadcom Tigon3 ethernet driver author: David S. Miller (davem@redhat.com) and Jeff Garzik (jgarzik@pobox.com) rhelversion: 7.3 srcversion: D276F97F491ADECC61C8284 alias: pci:v000010CFd000011A2sv*sd*bc*sc*i* ... signer: CentOS Linux kernel signing key sig_key: 3F:E1:EB:8B:4F:91:D4:84:CD:55:44:84:54:A0:24:DE:56:34:E1:06 sig_hashalgo: sha256 parm: tg3_debug:Tigon3 bitmapped debugging message enable value (int)
Using ethtool
ethtool -i eth0 driver: tg3 version: 3.137 firmware-version: FFV20.2.17 bc 5720-v1.39 expansion-rom-version: bus-info: 0000:02:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes supports-priv-flags: no
lshw
Use lshw:
lshw -class network
The driver information is listed under "configuration":
configuration: ... driver=tg3 driverversion=3.137 firmware=FFV20.2.17 bc 5720-v1.39 ...
Using OpenManage UI on Dell Servers
System -> Main System Chassis -> Network -> Click on interface -> Driver Name/Driver Version.
For more on OpenManage see: