Bandwidth in computer networking refers to the data rate supported by a
network connection or interface. One most commonly expresses bandwidth
in terms of bits per second (bps). The term comes from the field of
electrical engineering, where bandwidth represents the total distance or
range between the highest and lowest signals on the communication
channel (band).
Bandwidth represents the capacity of the
connection. The greater the capacity, the more likely that greater
performance will follow, though overall performance also depends on
other factors, such as latency.
Bandwidthd
BandwidthD tracks usage of TCP/IP network subnets and builds html
files with graphs to display utilization. Charts are built by individual
IPs, and by default display utilization over 2 day, 8 day, 40 day, and
400 day periods. Furthermore, each ip address’s utilization can be
logged out at intervals of 3.3 minutes, 10 minutes, 1 hour or 12 hours
in cdf format, or to a backend database server. HTTP, TCP, UDP, ICMP,
VPN, and P2P traffic are color coded.
Current Stable Version :- 2.0.1
Project Home Page :-
http://bandwidthd.sourceforge.net/
Bmon
bmon is a portable bandwidth monitor and rate estimator running on
various operating systems. It supports various input methods for
different architectures. Various output modes exist including an
interactive curses interface,lightweight HTML output but also formatable
ASCII output.
Bwbar
bwbar is a small C-based program for Linux-based machines which
produces bandwidth usage statistics for a network interface. It was
originally written by H. Peter Anvin, and I (Brian Towne) modified it
somewhat to better suit my needs. The original program was released
under the GPL. A number of people have asked for the modified program
and its source, so I have created this page.
Current Stable Version :- 1.2.3
bwm
This is a very tiny bandwidth monitor (not X11). Can monitor up to 16 interfaces in the in the same time, and shows totals too.
Current Stable Version :- 1.1.0
bwm-ng
small and simple console-based bandwidth monitor.Bandwidth Monitor NG
is a small and simple console-based live bandwidth monitor.
Current Stable Version :- 0.6
Project Home Page :-
http://www.gropp.org/?id=projects&sub=bwm-ng
Cacti
Cacti is a complete network graphing solution designed to harness the
power of RRDTool’s data storage and graphing functionality. Cacti
provides a fast poller, advanced graph templating, multiple data
acquisition methods, and user management features out of the box. All of
this is wrapped in an intuitive, easy to use interface that makes sense
for LAN-sized installations up to complex networks with hundreds of
devices.
Current Stable Version :- 0.8.7e
Project Home Page :-
http://cacti.net/
cbm
cbm — the color bandwidth meter — is a small program to display the traffic currently flowing through your network devices.
Current Stable Version :- 0.1
dstat
Dstat is a versatile replacement for vmstat, iostat, netstat, nfsstat
and ifstat. Dstat overcomes some of their limitations and adds some
extra features, more counters and flexibility. Dstat is handy for
monitoring systems during performance tuning tests, benchmarks or
troubleshooting.
Current Stable Version :- 0.7.1
Project Home Page :-
http://dag.wieers.com/home-made/dstat/
EtherApe
EtherApe is a graphical network monitor for Unix modeled after
etherman. Featuring link layer, ip and TCP modes, it displays network
activity graphically. Hosts and links change in size with traffic. Color
coded protocols display.
Current Stable Version :- 0.9.9
Project Home Page :-
http://etherape.sourceforge.net/
gdesklets
gDesklets is a system for bringing mini programs (desklets), such as
weather forecasts, news tickers, system information displays, or music
player controls, onto your desktop, where they are sitting there in a
symbiotic relationship of eye candy and usefulness. The possibilities
are really endless and they are always there to serve you whenever you
need them, just one key-press away. The system is not restricted to one
desktop environment, but currently works on most of the modern Unix
desktops (including GNOME, KDE, Xfce).
Current Stable Version :- 0.36.1
Project Home Page :-
http://www.gdesklets.de/
GKrellM
GKrellM is a single process stack of system monitors which supports
applying themes to match its appearance to your window manager, Gtk, or
any other theme.
Current Stable Version :- 2.3.4
Project Home Page :-
http://members.dslextreme.com/users/billw/gkrellm/gkrellm.html
ipband
ipband is a pcap based IP traffic monitor. It tallies per-subnet
traffic and bandwidth usage and starts detailed logging if specified
threshold for the specific subnet is exceeded. If traffic has been high
for a certain period of time, the report for that subnet is generated
which can be appended to a file or e-mailed. When bandwidth usage drops
below the threshold, detailed logging for the subnet is stopped and
memory is freed.
Current Stable Version :- 0.8.1
Project Home Page :-
http://ipband.sourceforge.net/
iftop
iftop does for network usage what top does for CPU usage. It listens
to network traffic on a named interface and displays a table of current
bandwidth usage by pairs of hosts. Handy for answering the question
“why is our ADSL link so slow”.
Current Stable Version :- 0.17
Project Home Page :-
http://www.ex-parrot.com/pdw/iftop/
iperf
Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning
of various parameters and UDP characteristics. Iperf reports bandwidth,
delay jitter, datagram loss.
ipfm
IP Flow Meter (IPFM) is a bandwidth analysis tool, that measures how much bandwidth specified hosts use on their Internet link.
Current Stable Version :- 0.11.5
Project Home Page :-
http://robert.cheramy.net/ipfm/
ifstat
ifstat is a tool to report network interfaces bandwith just like vmstat/iostat do for other system counters.
Current Stable Version :- 1.1
Project Home Page :-
http://gael.roualland.free.fr/ifstat/
ibmonitor
ibmonitor is an interactive linux console application which shows bandwidth consumed and total data transferred on all
interfaces.
Current Stable Version :- 1.4
Project Home Page :-
http://ibmonitor.sourceforge.net/
ipaudit
IPAudit monitors network activity on a network by host, protocol and
port.IPAudit listens to a network device in promiscuous mode, and
records every connection between two ip addresses. A unique connection
is determined by the ip
addresses of the two machines, the protocol used between them, and the port numbers (if they are communicating via udp or tcp).
Current Stable Version :- 0.95
Project Home Page :-
http://ipaudit.sourceforge.net/
IPTraf
IPTraf is a console-based network statistics utility for Linux. It
gathers a variety of figures such as TCP connection packet and byte
counts, interface statistics and activity indicators, TCP/UDP traffic
breakdowns, and LAN station packet and byte counts.
Current Stable Version :- 3.0.0
Project Home Page :-
http://iptraf.seul.org/
IFStatus
IFStatus was developed for Linux users that are usually in console
mode. It is a simple, easy to use program for displaying commonly needed
/ wanted statistics in real time about ingoing and outgoing traffic of
multiple network interfaces that is usually hard to find, with a simple
and effecient view. It is the substitute for PPPStatus and EthStatus
projects.
Current Stable Version :- 1.1.0
jnettop
Jnettop is a traffic visualiser, which captures traffic going through
the host it is running from and displays streams sorted by bandwidth
they use.
Current Stable Version :- 0.13.0
Project Home Page :-
http://jnettop.kubs.info/wiki/
MRTG
The Multi Router Traffic Grapher (MRTG) is a tool to monitor the
traffic load on network links. MRTG generates HTML pages containing PNG
images which provide a LIVE visual representation of this traffic.
Current Stable Version :- 2.16.3
Project Home Page :-
http://oss.oetiker.ch/mrtg/
moodss
moodss is a graphical monitoring application. It is modular so that
the code accessing the monitored objects is completely separate from the
application core. The core takes care of managing modules (loading and
unloading),displaying modules data through sortable tables and diverse
graphical viewers, handling user set threshold conditions with email
alerts, recording and browsing data history from a database.moodss can
even predict the future, using sophisticated statistical methods and
artificial neural networks, and therefore be used for capacity planning.
Current Stable Version :- 21.5
Project Home Page :-
http://moodss.sourceforge.net/
monitord
A lightweight (distributed?) network security monitor for
TCP/IP+Ethernet LANs. It will capture certain network events and record
them in a relational database. The recorded data will be available for
analysis through a CGI based interface.
Current Stable Version :- 4.0
Project Home Page :-
http://sourceforge.net/projects/monitord/
Netmrg
NetMRG is a tool for network monitoring, reporting, and graphing. Based on RRDTOOL, the best of open source graphing
systems, NetMRG is capable of creating graphs of any parameter of your network.
Current Stable Version :- 0.20
Project Home Page :-
http://www.netmrg.net
nload
nload is a console application which monitors network traffic and
bandwidth usage in real time. It visualizes the in-and outgoing traffic
using two graphs and provides additional info like total amount of
transfered data and min/max network usage.
Current Stable Version :- 0.7.2
Project Home Page :-
http://www.roland-riegel.de/nload/index.html
ntop
ntop shows the current network usage. It displays a list of hosts
that are currently using the network and reports information concerning
the IP (Internet Protocol) and Fibre Channel (FC) traffic generated by
each host. The traffic is sorted according to host and protocol. Default
protocol list (this is user configurable).
Current Stable Version :- 3.3.10
Project Home Page :-
http://www.ntop.org
netspeed
Netspeed is just a little GNOME-applet that shows how much traffic
occurs on a specified network device (for example eth0). You get the
best impression of it, if you look at the screenshots below.
Current Stable Version :- 0.14
Netwatch
Netwatch is a Linux program created to aid in monitoring Network
Connections. It is based on a program called “statnet” but has been
substantially modified for its Ethernet emphasis. It is a dynamic
program which displays the Ethernet status based each the connection’s
activity. It has the capability of monitoring hundreds of site
statistics simultaneously. The connection’s port number (Well Known
Service) and destination address are available as well. There are
options which allow router statistics to be measured on simple networks
(with one router). External network communication is counted and
transfer rates are displayed.
Current Stable Version :- 1.3.0-1
Project Home Page :-
http://www.slctech.org/~mackay/netwatch.html
NOCOL
NOCOL is a popular system and network monitoring (network management) software that runs on Unix systems and can
monitor network and system devices. It uses a very simple architecture
and is very flexible for adding new network management modules
Current Stable Version :- 4.3.1
Project Home Page :-
http://www.netplex-tech.com/nocol/
NeTraMet
NeTraMet is an open-source (GPL) implementation of the RTFM architecture for Network Traffic Flow Measurement,
developed and supported by Nevil Brownlee at the University of Auckland. Nevil also developed a version of NeTraMet
which uses the CoralReef library to read packet headers. This ‘CoralReef NeTraMet meter’ can work with any CoralReef
data source; it has been tested on both CAIDA and NLANR trace files, and on DAG and Apptel ATM interface cards.
Current Stable Version :- 43
Project Home Page :-
http://freshmeat.net/projects/netramet/
NetPIPE
NetPIPE is a protocol independent performance tool that visually represents the network performance under a variety of
conditions. It performs simple ping-pong tests, bouncing messages of increasing size between two processes, whether
across a network or within an SMP system. Message sizes are chosen at
regular intervals, and with slight perturbations, to provide a complete
test of the communication system. Each data point involves many
ping-pong tests to provide an accurate timing. Latencies are calculated
by dividing the round trip time in half for small messages ( <64
Bytes ).
Current Stable Version :- 3.7.1
Project Home Page :-
http://www.scl.ameslab.gov/netpipe/
netperf
Netperf is a benchmark that can be use to measure various aspect of networking performance. The primary foci are bulk
(aka unidirectional) data transfer and request/response performance
using either TCP or UDP and the Berkeley Sockets interface. As of this
writing, the tests available either unconditionally or conditionally
Current Stable Version :- 2.4.5
Project Home Page :-
http://www.netperf.org/netperf/
potion
This is a console utility which will listen on an interface using
libpcap, aggregate the traffic into flows and display the top (as many
as can fit on your screen) flows with their average throughput. A flow
is identified ip protocol, source ip, source port, destination ip,
destination port, and type of service flag.
Current Stable Version :- 0.0.4
pktstat
Display a real-time list of active connections seen on a network
interface, and how much bandwidth is being used by what. Partially
decodes HTTP and FTP protocols to show what filename is being
transferred. X11 application names are also shown. Entries hang around
on the screen for a few seconds so you can see what just happened. Also
accepts filter expressions á la tcpdump.
Current Stable Version :- 1.8.4
Project Home Page :-
http://www.adaptive-enterprises.com.au/~d/software/pktstat/
RTG
RTG is a flexible, scalable, high-performance SNMP statistics
monitoring system. It is designed for enterprises and service providers
who need to collect time-series SNMP data from a large number of targets
quickly. All collected data is inserted into a relational database that
provides a common interface for applications to generate complex
queries and reports. RTG includes utilities that generate configuration
and target files, traffic reports, 95th percentile reports and graphical
data plots. These utilities may be used to produce a web-based
interface to the data.
Current Stable Version :- 0.7.4
Project Home Page :-
http://rtg.sourceforge.net/
speedometer
Monitor network traffic or speed/progress of a file transfer. The
program can be used for cases like: how long it will take for my 38MB
transfer to finish, how quickly is another transfer going, How fast is
the upstream on this ADSL line and how fast can I write data to my
filesystem.
Current Stable Version :- 2.6
Project Home Page :-
http://excess.org/speedometer/
Spong
Spong is a simple system-monitoring package written in Perl. It
features client based monitoring, monitoring of network services,
results displayed via the Web or console, history of problems, and
flexible messaging when problems occur.
Current Stable Version :- 2.7.6
Project Home Page :-
http://spong.sourceforge.net/
slurm
slurm started as a pppstatus port to FreeBSD. As I ripped off several functions
Current Stable Version :- 0.3.3
SNIPS
SNIPS (System & Network Integrated Polling Software) is a system
and network monitoring software that runs on Unix systems and can
monitor network and system devices. It is capable of monitoring DNS,
NTP, TCP or web ports, host performance, syslogs, radius servers, BGP
peers, etc. New monitors can be added easily (via a C or Perl API).
Current Stable Version :- 1.1
Project Home Page :-
http://www.navya.com/software/snips/
tcpflow
tcpflow is a program that captures data transmitted as part of TCP connections (flows), and stores the data in a way
that is convenient for protocol analysis or debugging. A program like tcpdump shows a summary of packets seen on the
wire, but usually doesn’t store the data that’s actually being
transmitted. In contrast, tcpflow reconstructs the actual data streams
and stores each flow in a separate file for later analysis. tcpflow
understands TCP sequence numbers and will correctly reconstruct data
streams regardless of retransmissions or out-of-order delivery.
Current Stable Version :- 0.21
Project Home Page :-
http://www.circlemud.org/~jelson/software/tcpflow/
vnstat
vnStat is a network traffic monitor for Linux that keeps a log of
daily network traffic for the selected interface(s).vnStat isn’t a
packet sniffer. The traffic information is analyzed from the /proc
-filesystem, so vnStat can be used without root permissions. However at
least a 2.2.x kernel is required.
Current Stable Version :- 1.10
Project Home Page :-
http://humdi.net/vnstat/
WMND
Shows a graph of incoming/outgoing traffic, activity indicators for
rx/tx and current/maximum rate for rx/tx in bytes or packets.Tailored
for use with WindowMaker, it will as well work with any other window
manager though.
Current Stable Version :- 0.4.13
Project Home Page :-
http://dockapps.org/file.php/id/178
