Paessler Router Traffic Grapher (PRTG) is a network monitoring and bandwidth use software for Microsoft Windows by Paessler AG. The term network monitoring describes the use of a system that constantly monitors a computer network for slow or failing systems and that notifies the network administrator in case of outages via email, pager or other alarms. ... In information technology, throughput is the rate at which a computer or network sends or receives data. ... ‹ The template below has been proposed for deletion. ... Paessler AG is a privately owned company developing and selling network monitoring software. ...

Overview

With PRTG bandwidth usage of a network can be monitored and classified using the three most common bandwidth data acquisition methods:

• SNMP: Reads traffic counters of network devices like switches, routers and servers
• Packet Sniffer: Looks at all data packets travelling through a network using the promiscuous mode and analyzes the network packets to find out the IP addresses, protocols, etc. of the source and target machine
• Netflow: Analyses Netflow protocol packets used mostly by Cisco routers

Using SNMP not only bandwidth usage but also many other network readings (e.g. CPU usages, disk usages, temperatures) can be monitored using SNMP OIDs. The Simple Network Management Protocol (SNMP) forms part of the internet protocol suite as defined by the Internet Engineering Task Force. ... Packet sniffers (also known as network or protocol analyzers or Ethernet sniffers) are computer software (usually) or computer hardware that can intercept and log traffic passing over a digital network or part of a network. ... Promiscuous mode, in computer related fields, generally refers to the practice of putting a network card into a setting so that it passes all traffic it receives to the CPU rather than just packets addressed to it. ... // Protocol description Netflow is a Cisco IOS software feature and also the name of an open (but proprietary) Cisco protocol for collecting IP traffic information. ...

The usage data is constantly recorded and the historic data can be analyzed e.g. with data tables for usage billing and graphs for trend analysis via a web server interface and in a Windows GUI. A graphical user interface (or GUI, often pronounced gooey) is a method of interacting with a computer through a metaphor of direct manipulation of graphical images and widgets in addition to text. ...

PRTG was originally developed by Dirk Paessler when he discovered how much effort it is to install and configure MRTG on Microsoft Windows systems. A freeware version is available. ‹ The template below has been proposed for deletion. ...

See also

• Paessler: Manufacturer of the software
• MRTG: Open source monitoring software for Linux&Perl
• Network traffic measurement: A list of tools to help networks administrators to manage bandwidth and solve congestion problems on their network uplink

Paessler AG is a privately owned company developing and selling network monitoring software. ... In computer networks, network traffic measurement is the process of measuring the amount and type of traffic on a particular network. ... In computer networking, bandwidth management is the process of measuring and controlling the communications (traffic, packets) on a network link, to avoid filling the link to capacity or overfilling the link, which would result in congestion and poor performance. ... Congestion is a state of excessive accumulation or overfilling or overcrowding. ... A computer network is a system for communication among two or more computers. ... This article deals with Uplink in the telecommunications terminology. ...

External links

• Paessler Router Traffic Grapher (Freeware Download)
• Sample Report Pages of PRTG