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After collecting the information it will send back the raw data encapsulated in an SNMP protocol. MRTG records this data in a log on the client along with previously recorded data for the device. The software then creates an HTML document from the logs, containing a list of graphs detailing traffic for the selected devices in the server.
Cacti is an open-source, web-based network monitoring, performance, fault and configuration management framework designed as a front-end application for the open-source, industry-standard data logging tool RRDtool. [3] Cacti allows a user to poll services at predetermined intervals and graph the resulting data. Through the use of Cacti plugins ...
Grace is a free WYSIWYG 2D graph plotting tool, for Unix-like operating systems. The package name stands for "GRaphing, Advanced Computation and Exploration of data." Grace uses the X Window System and Motif for its GUI. It has been ported to VMS, OS/2, and Windows 9*/NT/2000/XP (on Cygwin).
MTR is licensed under the terms of the GNU General Public License (GPL) and works under modern Unix-like operating systems. It normally works under the text console, but it also has an optional GTK+-based graphical user interface (GUI).
It is designed to monitor the status of network services, servers, and other network hardware. It will send alerts when it detects problems. It will send alerts when it detects problems. It is open-source software originally written entirely in Perl , but nowadays in Go, and provides a web based interface.
Several tools with combined sampling and call-graph profiling. A set of visualization tools, VCG tools, uses the Call Graph Drawing Interface (CGDI) to interface with gprof. Another visualization tool that interfaces with gprof is KProf. Free/open source - BSD version is part of 4.2BSD and GNU version is part of GNU Binutils (by GNU Project) HWPMC
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Gephi has been used in a number of research projects in academia, journalism and elsewhere, for instance in visualizing the global connectivity of New York Times content [17] and examining Twitter network traffic during social unrest [18] [19] along with more traditional network analysis topics. [20]