bwm-ng v0.6.3 Copyright (C) 2004-2021 Volker Gropp ([email protected]) http://www.gropp.org/?id=projects&sub=bwm-ng

What is this?

Bandwidth Monitor NG is a small and simple console-based live network and disk io bandwidth monitor for Linux, BSD, Solaris, Mac OS X and others.

Short list of features:

• supports /proc/net/dev, netstat, getifaddr, sysctl, kstat, /proc/diskstats /proc/partitions, IOKit, devstat and libstatgrab
• unlimited number of interfaces/devices supported
• interfaces/devices are added or removed dynamically from list
• white-/blacklist of interfaces/devices
• output of KB/s, Kb/s, packets, errors, average, max and total sum
• output in curses, plain console, CSV or HTML
• configfile

This was influenced by the old bwm util written by written by Barney ([email protected]) which had some issues with faster interfaces and was very simple. Since i had almost all code done anyway for other projects, i decided to create my own version.

I actually dont know if netstat input is usefull at all. I saw this elsewhere, so i added it. Its target is "netstat 1.42 (2001-04-15)" linux or Free/Open/NetBSD. If there are other formats i would be happy to add them.

For info about libstatgrab please refer to http://www.i-scream.org/libstatgrab/

Supported Platforms

network routines sucessfully tested on: Linux 2.4 and above* FreeBSD 4.8, 5.3, 6.2* MacOS X 10.1 and above* Solaris 10 x86* SunOS 5.9 sparc Solaris 9 OpenBSD 3.4, 3.6, 4.0* NetBSD 1.6.1, 2.0, 3.0* IRIX64 6.5 Win2000, WinXP, Windows Vista

*disk monitoring working aswell

please email me of working or not working platforms. Disk IO might work only on a limited number of platforms.

INSTALL

Autotools are used to build this. Run the autogen.sh to generate the configure script.

For detailed decription please read INSTALL ./configure --help for a list of options

./configure make

to install use as root: make install

WIN32

To compile the Windows version in Linux (debian): ./configure --with-win32 --without-procnetdev --without-diskstats --without-curses --without-netstatlinux --build i686-pc-linux-gnu --host i586-mingw32msvc make

get ansi.sys for better output: http://en.wikipedia.org/wiki/ANSI.SYS

Specs

csv output format: Type rate: unix timestamp;iface_name;bytes_out/s;bytes_in/s;bytes_total/s;bytes_in;bytes_out;packets_out/s;packets_in/s;packets_total/s;packets_in;packets_out;errors_out/s;errors_in/s;errors_in;errors_out;bits_out/s;bits_in/s;bits_total/s;bits_in;bits_out\n Type svg, sum, max: unix timestamp;iface_name;bytes_out;bytes_in;bytes_total;packets_out;packets_in;packets_total;errors_out;errors_in\n Use --count 0 to skip the all zero output after start.

html output format: edit the bwm-ng.css to modify the output. Please note the htmlrefresh only modifies the META refresh, you maybe wanna sync --timeout and --htmlrefresh

USAGE

USAGE: bwm-ng [OPTION] ... [CONFIGFILE] Please read the manpage or bwm-ng -h for a list and explanation of options.

Keybindings (curses only): 'h' show help 'q' exit '+' increases timeout by 100ms '-' decreases timeout by 100ms 'k','d' switch KB and auto assign Byte/KB/MB/GB 'a' cycle: show all interfaces, only those which are up, only up and not hidden 's' sum hidden ifaces to total aswell or not 'n' cycle: input methods 'u' cycle: bytes,bits,packets,errors 't' cycle: current rate, max, sum since start, average for last 30 sec

Configfile

either via cmdline or /etc/bwm-ng.conf or ~/.bwm-ng.conf it consists of: longoption=value with 1 or 0 as values for keys without a value in cmdline options.

For more help take a look at bwm-ng.conf-example

Misc

Bugs/Known Problems:

• curses output coredumps on netbsd 1.6.1 (maybe others) with unknown TERM set and configfile support compiled in
• no other yet, wow ;) (please report if you found one)

Todo:

• Docs
• checking options to be valid
• mysql output (ipac-ng compatible)
• setting which stats to output for csv/sql
• distributed gathering of stats (client/server)
• whatever you can think of

• This program is free software; you can redistribute it and/or modify *
• it under the terms of the GNU General Public License as published by *
• the Free Software Foundation; either version 2 of the License, or *
• (at your option) any later version. *

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• This program is distributed in the hope that it will be useful, *
• but WITHOUT ANY WARRANTY; without even the implied warranty of *
• MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
• GNU General Public License for more details. *

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• You should have received a copy of the GNU General Public License *
• along with this program; if not, write to the Free Software *
• Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA *