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The article focuses on test instruments that can analyze data and communications network protocols. In data and communications networks, protocols define how information must be organized for it to be correctly interpreted. A typical protocol is the PCI Express (PCIe) which consists of several distinct layers. A proper protocol analyzer is necessary in order to analyze high-speed data buses and for complex applications with many different protocols. GL Communications' protocol analyzers handle wireless and wired T1, E1 and Ethernet networks with as many as 50 separate protocols for each of data. NGenius® Network Monitor from NetScout is optimized to work with the protocols encountered in virtual private networks (VPN).

The article focuses on the use of fixed-mobile convergence (FMC) in accessing voice and data services as well as lowering communications costs. This convergence is based on the idea that wireless IP networks and 802.11a/b/g/n devices can deliver the underlying quality of service necessary to guarantee a satisfying end-user experience. The demand for this kind of application is also driven by the capability to provide cost savings not available from alternative wireless fidelity (Wi-Fi) cellular-only services.