How to check current network load of the linux server

[senthil_kumar_1]

Hi All,

How to monitor and check the current network load of the linux server...


Is there any tools?

[Wilfred Chau_1]

netstat -s

should give you a detailed networking statistics

[Ralph Grothe]

I also found the Linux/GNU implementation of of sar quite useful to this end.
sar is, at least under RHEL, part of the sysstat RPM which usually doesn't get installed per default.

$ rpm -q --qf "%{release}\n" redhat-release
5.6.0.3

$ rpm -qf $(which sar)
sysstat-7.0.2-3.el5_5.1


e.g. to get traffic stats per NIC every five secs

$ sar -n DEV 5 0


the same but for error stats

$ sar -n EDEV 5 0

[Alexander Ståhlberg]

I kinda like "ibmonitor" which is just a pearl script.

http://ibmonitor.sourceforge.net/

Great if you wan't to have a look at current throughput and it will list for all your interfaces.

If you leave it on it will give you avg until you close it.

[Alzhy]

my Fave:

HP GlancePlus if you can afford it.

sar whould also do the trick

as do netstat.

As do literally dozens and dozens of tools around the 'Net.

[KarloChacon]

I can also recommend you nmon and the nmon Analyser which will let create great reports


http://www.ibm.com/developerworks/wikis/display/WikiPtype/nmon


http://pkgs.repoforge.org/nmon/

[AntsInPants]

I like to use iptraf

iptraf - Interactive Colorful IP LAN Monitor

[Paul Sperry]

The obvious

uptime

and


top

[sahabdeen]

use the command "nload"

nload - displays the current network usage

Synopsis

nload [-a period] [-i max_scaling] [-m] [-o max_scaling] [-t interval] [-u h|H|b|B|k|K|m|M|g|G] [-U h|H|b|B|k|K|m|M|g|G] [devices]

nload --help|-h