6 Design Principles of the Modern LAN

Modern LAN design can address a wide range of challenges that network architects and administrators are encountering today

Gary Audin

December 3, 2018

2 Min Read
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The Internet of Things (IoT) is changing everything with regard to the modern LAN, as Frost & Sullivan reported in an infographic. As the infographic shows, as enterprises embrace IoT, top challenges surface:

  • 49% of enterprises consider security and privacy to be their highest concern

  • 39% worry about the cost of integration

  • 36% want the time to develop solutions to be faster

The Traditional LAN

The traditional LAN connection endpoints use 4-pair category five or better copper wire. It is limited in distance to about 330 feet or 100 meters. Before the advent of the IP phone, a main concern was how much bandwidth could a PC access on the LAN. LANs started off at 10 Mb, then evolve to 100 Mb, and finally to 1 Gb. The primary design goals were for supporting connected PCs, printers, and scanners. The traditional LAN was not designed for a large quantity of endpoints, nor for bandwidth requirements like the IP phone. IP phones do not require a lot of bandwidth but require quality of service and consistent bandwidth for their operation. This is quite different than the bursty traffic normally encountered with PCs. The traditional LAN has to be reconsidered and redesigned to support the wide range of new devices encountered with IoT and the workplace of the future.

The Modern LAN: Rethinking Network Design for the Modern Age,” is a useful white paper authored by Frost & Sullivan’s industry experts. The document provides consultants, resellers, and modern enterprises with a revolutionary set of new best practices to accommodate the impact of the Internet of Things on the local area network.

John Croce and I discussed the six LAN design principles as outlined in the Frost & Sullivan paper. These principles will overcome traditional barriers to IP devices and the IoT, and establish a network capable of supporting IoT objectives today and into the future. The following is a digest of our conversation.

The Modern LAN

The LAN endpoint population has grown in quantity and diversity. LANs must now support IoT, IP phones, video, security systems, and TV, as well as more connections. The number of connections has or will exceed the PC/workstation population in most enterprises. The newer endpoints will be further away than can be supported by traditional 4-pair data quality cable. It may even be connected using coaxial cable. Smarter endpoints need a smarter LAN.

Read the rest of the article here.


About the Author(s)

Gary Audin

President, Delphi, Inc.

Gary Audin has more than 40 years of computer, communications, and security consulting and implementation experience. He has planned, designed, specified, implemented, and operated data, LAN, and telephone networks. These have included local area, national, and international networks, as well as VoIP and IP convergent networks in the US, Canada, Europe, Australia, the Caribbean, and Asia. Gary has advised domestic and international venture capital and investment bankers in communications, VoIP, and microprocessor technologies.

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