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User interface (web, graphical, console) Real-time traffic graphs; Network activity is often reported against pre-configured traffic matching rules to show: Local IP address; Remote IP address; Port number or protocol; Logged in user name; Bandwidth quotas; Support for traffic shaping or rate limiting (overlapping with the network traffic ...
It allows the user to see traffic load on a network over time in graphical form. It was originally developed by Tobias Oetiker and Dave Rand to monitor router traffic, but has developed into a tool that can create graphs and statistics for almost anything. MRTG is written in Perl and can run on Windows, Linux, Unix, Mac OS and NetWare.
PRTG (Paessler Router Traffic Grapher) is a network monitoring software developed by Paessler GmbH. It monitors system conditions like bandwidth usage or uptime and collect statistics from miscellaneous hosts such as switches, routers, servers, and other devices and applications.
NetFlow is a feature that was introduced on Cisco routers around 1996 that provides the ability to collect IP network traffic as it enters or exits an interface. By analyzing the data provided by NetFlow, a network administrator can determine things such as the source and destination traffic, class of service, and the causes of congestion.
A common usage is to monitor network traffic by polling a network switch or router interface via Simple Network Management Protocol (SNMP). The Cacti end user front end supports both User and User Groups security models and supports Role Based Access Control (RBAC) for access to not only monitoring data, but various areas of the user interface.
Monitor WAN bandwidth utilization; Monitor network usage (including internal and external users and systems) Monitor data in transit; Monitor WAN and endpoint security status; Gather and report network statistics; Identify suspect content in network traffic; Troubleshoot performance problems by monitoring network data from an application
Passive monitoring is a technique used to capture traffic from a network by copying traffic, often from a span port or mirror port or via a network tap. It can be used in application performance management for performance trending and predictive analysis. [ 1 ]
The monitored traffic is sometimes referred to as the pass-through traffic, while the ports that are used for monitoring are the monitor ports. There may also be an aggregation port for full-duplex traffic, wherein the A traffic is aggregated with the B traffic, resulting in one stream of data for monitoring the full-duplex communication.
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