Many service providers simply providing network connectivity for their enterprise customers. They also offer additional services & network functions like network address translation (NAT), firewalls, encryption, domain name service (DNS), caching and others. Traditionally, these network functions will deploy using proprietary hardware at the customer premises. This approach provides additional revenue. But deploying multiple proprietary devices is costly and makes upgrades difficult.
Service providers began exploring ways to reduce cost and accelerate deployment through network functions virtualization (NFV). NFV de-couples’ function like firewalls, encryption from dedicated hardware and moves the functions to virtual servers.
Instead of installing expensive proprietary hardware, service providers can purchase an inexpensive switches, storage and servers to run virtual machines that perform network functions. If a customer wants to add a new network function, the service providers can spin-up a new virtual machine to perform out function.
Fig: High Level NFV Framework
The high level NFV architecture allows service providers to automate at every single level. The major components of this framework include:
It is a kind of cloud data center containing hardware and virtual resources that build-up the NFV environment. These includes servers, switches, virtual machines and virtual switches.
These includes computing resources such as servers, RAM. Storage resources such as disk storage and network resources such as switches, firewalls and routers.
The virtualization layer abstracts the hardware resources and de-couples’ the software from the hardware. This enables the software to progress independently from the hardware. For the virtualization layer we can use multiple open source and proprietary options such as KVM, QEMU, VMware and OpenStack.
These includes virtual compute, virtual storage and virtual network.
This is the second layer of NFV. The VNFs are the basic building block in the NFV architecture, the software implementation of the network functions. VNFs can be connected together as building blocks to offer a full-scale network service. This is known as service chaining. Examples of VNFs includes vIMS, vFirewalls and vRouters.
This is the third component of NFV architecture. It includes virtualized infrastructure manager, VNF manager and orchestrator.
It controls n managers interaction of VNF and NFVI compute, storage and network resources. It also has necessary deployment and monitoring tools for the virtualization layer.
VNF manager manages the life-cycle of VNF instances. It is responsible to initialize, update, query, scale and terminate VNF instances.
It manages the life-cycle of network services which includes instantiation, policy management, performance management and KPI monitoring.
OSS deals with network management, fault management, configuration management, service management and element management. BSS deals with customer management, operations management, order management, billing and revenue management.
NFV provides the following benefits to network operators:
NFV enable dynamic provisioning of network services that support applications. With NFV the service providers grant the flexibility to move their network functions from a dedicated appliance to generic servers. With its benefits of scalability, security and cost-effectiveness, NFV is helpful to shape the service provider networks.
Businesses and organizations are moving their workload to the cloud for better agility, performance, and security. Cloud computing is the bellwether of hosting applications and databases to improve the overall efficiency of business processes. The disparity between the on-premise workload and cloud environment workload often results in businesses migrating the workload to the cloud. Cloud technology shows impeccable growth contributing to the adoption of cloud-based computing across many businesses and organizations.
Centaurus, a next-generation cloud for the telecom sector, is an open-source project for building cloud infrastructure platform that can be used to build and manage public or private clouds, edge computing, and edge device datacenter. It is a solution to address key challenges of large-scale clouds such as system scalability, resource efficiency, multi-tenancy, edge computing, and the native support for the fast-growing modern workloads such as containers and serverless functions. Centaurus helps in creating multiple nodes, managing infrastructure, containerizing the environment, managing the pods, and many more.
Cloud computing is picking up the pace replacing the traditional methods of storing the data, accessing, and running the applications. Cloud migration is the process to shift the existing data, applications, and other business elements from data centers or one cloud to other cloud environments for better scaling. Organizations are shifting their businesses on cloud for more speed and agility. Migration to cloud gives the organization limitless computing resources.
Click2Cloud support enterprises throughout their cloud infrastructure deployment process and empowers them with private cloud offerings, a cloud framework for compute, storage, and network services. To get the benefit of hybrid cloud and Edge computing an enterprise can accelerate the use of OpenStack, Apsara Stack, and Azure Stack services to transform technologies into cloud and deep industry growth to deliver abiding value.
This blog will give you a complete understanding on billing, budget, and cloud cost optimization. Cloud cost management is as important as knowing your bills. It is important to know your cloud spends and which cloud offers you a good service at minimal costs. Click2Cloud also offers you a semi-automated assessment platform “ CloudsIntel” to support you with assessment and migration plan
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