Single-Vendor vs Multi-Vendor Deployment
Broadly speaking, there are two types of telecom cloud strategies: single-vendor versus multi-vendor deployments. With the former, one vendor integrates its virtual network functions (VNFs), VNF manager (VNFM), and virtual infrastructure manager (VIM) with the underlying hardware layer. With this approach, the VNF vendor supplies its own hardware. The supplier carries out the engineering and fine tuning between VNFs, hypervisor environment, and the network function virtualization infrastructure (NFVI) layer. The engineering concept of interdependence best characterizes a single-vendor deployment. An architecture is interdependent if one component cannot be created independently of the other part. The way one component is designed and integrated depends on the way other components are designed and integrated. Network Equipment Vendors (NEVs) such as Nokia, Huawei, Ericsson, and ZTE excel at commercialising interdependent product architectures.
In contrast, a multi-vendor deployment consists of (modular) disparate components. A modular architecture is a clean one. There are no…
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