Programmable Network Access

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What Does Programmable Network Access Mean?

Programmable network access (PNA) refers to accessing network resources, sending network commands and other network communication on a programmed or software defined or controlled network environment.

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It refers to all physical and virtual devices that access or operate on a network on which routing and switching decisions are made or controlled by programs rather than network hardware.

Techopedia Explains Programmable Network Access

PNA primarily relies and works in a network environment that is designed, developed and managed in a software defined networking (SDN) framework. PNA is typically performed within cloud computing and virtual networking environments where virtual machines and virtual switches interact with each other on a virtual network layer. The virtual network layer operates as an abstract virtual network on top of a physical network and provides data communication within that virtual network.

In PNA, each packet can be prioritized, centrally managed and all network access and communication can be programmed independent of the physical networking equipment.

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Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.