- [Introduction] (#intro)
- [Install] (#install)
- [Running the script] (#running)
This is a small PERL script that calculate network bandwidth with some stats.
I wrote it mainly because softs like iperf have to be lauch both sides of the network you want to evaluate. This script is doing calculation from one point only with HTTP download and upload.
It's compatible with any Unix/Windows platform since you have tcpdump installed.
The project needs sevral Perl plugins to work properly:
- Getopt::Std
- LWP::Simple
- LWP::UserAgent
- HTTP::Request
- File::Slurp
- Time::HiRes
- IPC::Open2
- Statistics::Basic
- List::Util
Install the dependancies:
# apt-get install tcpdump libwww-perl libfile-slurp-perl libstatistics-basic-perl
Make your script executable :
chmod +x netbps
Run a download bandwidth test :
$ ./netbps -d -r http://cdimage.debian.org/debian-cd/7.5.0/amd64/iso-cd/debian-7.5.0-amd64-CD-1.iso -D detailed
[...]
1398512914.36;1.44
1398512914.42;2.02
1398512914.47;1.82
1398512914.52;1.65
1398512914.57;1.41
1398512914.62;1.45
1398512914.67;1.39
1398512914.72;1.35
1398512914.77;1.37
1398512914.82;1.34
1398512914.87;1.33
1398512914.92;1.32
1398512914.97;1.38
1398512915.19;1.34
1398512915.70;1.31
1398512915.12;1.32
[...]
Average : 1.4 MBps
Std Deviation : 0.22 MBps
Median : 1.34 MBps
Min : 0.00 MBps
Max : 2.24 MBps
Prepare a 20 MB ressource file :
$ dd if=/dev/urandom of=/tmp/myressource.img bs=1M count=20
Then have an HTTP server configured with Webdav methods enabled to accept a PUT on it.
$ ./netbps -r /tmp/myressource.img -s http://myserver.com/test.img -D human
Average : 0.9 MBps
Std Deviation : 0.20 MBps
Median : 0.8 MBps
Min : 0.00 MBps
Max : 1.12 MBps
Full help :
Usage:
netbps --help |--version
netbps -u|-d [-I interface] [-p port] [-i report_interval] [-D display_type] <-s server | -r ressource>
netbps -d -r http://ressource
netbps -u [-p port] [-r ressource] -s server
netbps -u|-d [-i report interval] -s server
-u Upload mode (only HTTP PUT method supported for now)
-d Download mode (only HTTP download supported for now)
-s Specify a server url for upload
-p Specify a port on this server (default 80)
-r Specify a file to upload or download
ex: netbps -u -r /blah/foo.iso -s http://server/blah/foo.iso
ex: netbps -d -r http://server/blah/foo.iso
-i Specify an interval time between two checkpoint (default 50ms)
-I Force output/sniffing interface (default eth0)
-D Display type, can be "human", "script", "detailed"
-f Unit, can be Kbps, KBps, Mbps, MBps (default MBps)
--help Display this help message
--version Show script version
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