Posts about VNFs

Enterprises are investigating software-defined WAN (SD-WAN) to save networking costs and gain application control. Hoping to increase customer retention, service providers are rolling out managed SD-WAN offerings. These initial service offerings rely on deploying closed and vendor-specific SD-WAN appliances at the customer site ...

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You are probably familiar with network functions virtualization (NFV) and its virtual network functions (VNFs) as a means to provide software replacement of dedicated hardware aka physical network functions (PNF). The ETSI NFV ISG has formally described the NFV architecture and its use cases, highlighting the agility and flexibility of software ...
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The benefits of moving towards a virtualized environment have been well publicized – eliminating vendor dependence and product obsolescence, faster introduction of new products and services, and the creation of a flexible, user-driven, on-demand service delivery environment that enables network functions to be dynamically defined, deployed and reassigned to match and organizations scale, performance and capabilities requirement ...

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Software-defined WAN (SD-WAN) offers enterprise users a way to implement virtual private networks (VPNs) at a much lower cost than today’s operator-managed Multiprotocol Label Switching (MPLS) VPNs. However, today’s SD-WAN solutions put the enterprise in charge of all aspects of the network, including local access and backbone transport. That may be too much of a management burden to take on for already-overloaded IT departments ...

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I’m a pretty tall person and a strong non-believer in the one-size-fits-all paradigm. That’s because it’s a compromise and compromises don’t tend to look good, feel good or work well. While it might serve the industry to increase the addressable market with a single product, the user usually doesn’t benefit so much ...

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