![]() Reducing power consumption is important for the environment, as well as for Internet service providers since it lowers operation expenditure (OPEX) . However, no attention has been given to the reduction of power consumption. Both software suites have been optimised to maximise the packet processing speed. DPDK has been particularly developed for Intel network controllers, while netmap aims to support wider range of devices. Network functions are implemented as applications in the user space. Data Plane Development Kit (DPDK) and netmap are examples of frameworks that provide higher packet processing rates by connecting network drivers directly to the user space applications . However, transmission control protocol/internet protocol (TCP/IP) protocol stack implemented in common operating systems has limitations in terms of packet processing speed. NICs supporting speeds of 10 and 40 Gbit/s are already available on the market. Moreover, with advances in development of processors and network interface cards (NICs), software routers are becoming competitive with specialised networking equipment. General purpose hardware (such as PCs or servers) is also cost effective due to the economy of scale. User can program general purpose hardware to implement only needed functionalities at the time. Computers are taking a role of software routers or middleboxes . For this reason, software defined networking based on general purpose hardware is becoming popular. In practice, the networking requirements are dynamic and numerous, which increases the cost of multipurpose ASIC and associated control plane. IET Generation, Transmission & DistributionĬommercial networking devices commonly use application specific integrated circuit (ASIC) chips optimised for particular functionalities.IET Electrical Systems in Transportation.IET Cyber-Physical Systems: Theory & Applications.IET Collaborative Intelligent Manufacturing.CAAI Transactions on Intelligence Technology.
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