10-May-2019 / Tell A Friend
The days of building local area networks (LAN) to support telephones, desktop workstations and locally switched traffic have passed. Ten years ago, LANs were designed to support peer-to-peer traffic flows because 80% of the traffic stayed local, but today it is expected that 90% of LAN traffic flows directly to the Wide Area Network (WAN) [Figure 1].
LAN traffic has made a 180-degree change in direction because of browser-based applications, wireless (e.g. 5G, Wi-Fi), employee personal traffic, hosted/managed and cloud-based services. The modern high-performance corporate LANs need to support new smart building systems, a wide range of mobile devices (e.g. BYOD), cloud computing and a constant influx of new software applications. IT professionals also find themselves balancing corporate data, employee personal data, external malicious attacks and internal security vulnerabilities.
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