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Many telecom manufacturers are promoting a misconception more or less the superior reach of NFV (network functions Virtualization) within the networks of service providers: the sum awol of proprietary hardware. The veracity is that in the rude and medium term, not every the network equipment of support providers can be virtualized, or it will not be economic in terms of capex and opex.
For example, the equipment used in optical networks requires specialized network hardware and software. These equipments support high speeds and densities of 100 g Ethernet and DWDM further optical channels. The thesame is authentic of network backbone routers, which support terabits data streams. However, the rule aircraft can be easily undocked and virtualized, using Sdn.
Other network nodes, such as SBC (Session attach Controller), challenge the virtualization of the data plane for networks like a high number of unified communications sessions. Although the emergence of Intel DPDK (data plane evolve kit) has been key to its virtualization in the networks of operators, gigantic deployment will say you will several years. The SBC has traditionally required, for large deployments, proprietary hardware that allows to play later high data streams, without introducing delay, and making rarefied manipulations such as codec transformation, encryption, etc., in imitation of full availability and without resenting in performance, even in situations of network attacks.
However, its virtualization for small-and medium-sized situation environments is a truth and companies later than Oracle have been within reach for this technology for several years. For large abet providers, the proprietary nodes will come up with the money for improved feign in terms of space, vivaciousness consumed, habit for hardware, etc., which in the end, are moreover savings in capex. Virtualization, however, is of great importance for the absorption of traffic peaks, proof of extra services, etc. Therefore, operators can be usual to perform hybrid deployments using both virtualized nodes and proprietary hardware nodes.
In short, the narrowing of opex will not always be viable afterward NFV. The agility and belittle deployment costs offered by NFV are the main advance offered by this technology. In new words, the main motivations of NFV are flexibility and speed, much more than direction every the network functions upon x 86 servers.