What is network monitoring? Network monitoring is a type of software application that verifies the correct functioning of network devices, such as routers, switches, and servers. The goal of network...
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How To Simulate Network Outages Simulating network outages is an important step in validating highly available and/or redundant network configurations. Along with validation, another use case for simulating network outages...
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TheTrivial File Transfer Protocol (TFTP) was standardized in 1981, according to the RFC 1350. The goal of the designers was to build an FTP that is small in size and...
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In this article I want to highlight how important it is to define the top use cases of a network monitoring solution. A successful implementation of a network monitoring solution starts by defining the specific situations in which the solution will be used. This will help its users clearly define…
Why SSID Hopping is a New Business Requirement WiFi is everywhere, and it’s connecting the world. Apple removed Ethernet interfaces from their Macintosh laptops long time ago. Tablets and smartphones...
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What Is Network Automation? Network automation is the ability to configure and manage network devices via Application Programming Interfaces (APIs). An API offers a method to interact with an application, device, or system by pulling information, or pushing commands, via a well-defined set of instructions or routines. Traditionally, network devices…
What’s an IP Conflict? An IP conflict occurs when two or more hosts in the same subnet are configured with the same IP address. When this happens, communications with the...
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How to Use JPerf JPerf stands for Java Perf; it’s a GUI for running iPerf without having to bother learning the Command Line Interface (CLI) options. JPerf is a convenient...
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Using wget to Calculate TCP Connect and HTTP Response Time The Problem A client of mine complained about intermittent performance issues with a web based application; upon learning that there...
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How to Detect a Routing Change The data revolution has taken the IT work by storm. It’s easy to collect an endless stream of network monitoring data from your network (SNMP, NetFlow, IP SLA). But then what? How can you extract the few meaningful pieces of information needed to manage…