Multi-industry application, NFV trend

Sdn Thunder, NFV smoke again. As one of the most active emerging network technologies, NFV has become a new weapon for advancing the pace of network evolution and coping with the business challenges of the cloud computing era.

Multi-industry application, NFV trend

Compared with the SDN,NFV focus on the network four to seven layers of functions and applications, covering the traditional routers, firewalls, load balancing, IPS, application gateways, including VPN, NAT Gateway, security services, application identification, analysis, control and so on.

In the current application environment, NFV is the application object that operators mainly focus on. NFV through software and hardware separation, the realization of network function virtualization and business on-demand deployment, can be very good to help operators get rid of incremental income, OTT and other problems, so that operators to lower operating costs to cloud computing smooth transition, to meet the network operation and maintenance of complex management, business deployment cycle long, network cost pressure and other challenges.

Insiders predict that the next decade, with the help of the Virtual NFV Innovation Network architecture, automated operation and maintenance management and flexible business development will be the general trend. So, in addition to the operator sector, is NFV in other areas equally promising? In this respect, Hangzhou Hua San Communication technology experts pointed out that, the large-scale application of cloud computing has proposed the resource, the virtualization, the flexibility demand to the network, the NFV deployment and the application very conforms to the cloud model new network technology request, in the future, the Internet, the government, the large-scale data center and so on user-level scene, NFV will realize the large-scale landing and the application As a powerful booster to improve the operational efficiency of the cloud platform.

Therefore, in the future NFV application market, the breakthrough operator application domain, expands the application scope, the promotion market space, will be the NFV development inevitable road.

Grasping the key of NFV application

As we all know, SDN has been deployed and commercialized in many fields such as operators, internet companies and it. In the market demand point of view, NFV as SDN "heterosexual" brother, whether in the turbulent network market rapid growth, breakthrough wait-and-see period, realize the scale of the application and deployment, has become a general concern of the industry.

In NFV application scenario, the higher the user's CPU consumption, the more suitable for the NFV form, such as management System/controller, L4-L7 Service, Security Service, wireless gateway, home gateway, etc. The backbone network, convergence layer, DC switch and so on need to rely on the Npu/asic class of high throughput pattern is not suitable for NFV. Based on this kind of technical consensus, users can look at their own business characteristics and seek a NFV application path in the field of innovation network which accords with their own business development. At the corresponding network level to realize the virtualization of network applications, completely rid of the system cloud slow, loss of data value, business customization degree low, CIO transformation difficulties and so on, easy to embark on the road of cloud computing.

Reduce equipment cost and energy consumption, reduce equipment capex and opex, reduce business deployment and adjustment time, improve investment profitability of new business, test and deploy innovative business ... NFV's many functions seem to open up a way for users to access the "cloud" road. However, how to better deploy and apply NFV, Hangzhou Hua San Communication product management and marketing vice President Zheng Zhisong that users also need to work hard in the following three areas.

The rapid development and maturation of the server virtualization technology, especially the network card virtualization technology, including the Intel vt-d, Iov and so on, make the virtual machine's I/O performance greatly increased, thus enhancing the forwarding performance of the network equipment, promoting the application of the NFV and large-scale deployment. In addition, Hua San is also actively through clustering, stacking, distributed technology, to enhance the performance of NFV series products.

The proprietary networking devices used today in the network support the development of it over the last 20 years. The past is to establish a network deployment business, today, the requirements of rapid online business, as well as continuous adaptation and improve the user's requirements for a higher service experience, all need to follow the business requirements of the various levels to make good changes and guarantee. From the network point of view, is to be able to achieve application-driven network, the network with the needs of the business move. NFV software functions and proprietary hardware decoupling, through automated deployment to improve the response speed of business online.

Cloud Computing provides an internet-based service usage and delivery model, and its core idea is to manage and dispatch a large number of computing resources with network connections, and to form a pool of computing resources to provide on-demand services to users. The large-scale application of cloud computing has proposed the resource, the virtualization, the flexibility demand to the network, has promoted the NFV application and the deployment, NFV has provided the new network technology for the cloud computing development, has become the powerful booster which raises the cloud platform operation Efficiency.

NFV and SDN are the next generation of network technologies to meet new application needs, so the relationship between them has naturally become a matter of concern to many people. In general, they each have a focus on different aspects to solve the different network problems, and they have a very close relationship.

Figure I: Relationship between NFV and SDN

As shown above, NFV and SDN are independent of each other, claiming that the system, NFV through the software hardware separation, the realization of network function virtualization, business on-demand deployment, can be deployed in a SDN environment, SDN through the separation of control and forwarding, the realization of centralized network control, flow flexible scheduling, Can be deployed on both traditional network devices and NFV devices. At the same time, NFV and SDN have a strong complementarity, NFV increase the flexibility of functional deployment, SDN can further promote the NFV feature deployment flexibility and convenience, such as the use of SDN control plane and data plane separation, you can further simplify the existing deployment, reduce the burden of operation and maintenance. At the same time, NFV can provide new infrastructure support for SDN operations, such as running the control plane and data plane functions directly on standard servers, simplifying SDN deployments.

In the future, NFV and SDN these two concepts and solutions will be closely combined to produce greater value, to the maximum extent possible to meet the user's service speed, business capabilities and ease of operation requirements.

Manufacturers pull, NFV landing commercial

As the main participant in the network development ecological chain, the manufacturer is an important driving force for the development and application of new technology. At present, in the NFV field, most manufacturers are still in wait-and-see state, only a few manufacturers have carried out some useful practice and promotion.

In foreign manufacturers, Cisco, Brocade as the representative of the company as early as two years ago on the NFV launched the action. Cisco buys Swedish tail systems with 175 million dollars in cash and equity incentives to better adapt to the emerging NFV market and complete strategic reserves of new technology. And Boko in 2012 through the acquisition of Vyatta, with a more complete NFV product line, and implemented in the Amazon deployment. By contrast, with China three communications as the representative of the local manufacturers more concentrated in the technical field of development, Hua San has a complete SMARTNFV solution to open, compatible, practical framework for the NFV to provide an open, verifiable, innovative ecological environment, applicable VPC, Vpop, Typical scenarios for software definition security. At present, Hua San NFV has achieved commercial deployment and bulk product delivery, successful service to the Spanish telecom, China Telecom Zhoushan government Cloud and other users, and user depth recognition.

NFV in the future network architecture in the active application, has been the industry consensus, a number of leading manufacturers of active input, but also for the NFV market landing and commercial deployment provides a very good development conditions. As the global new IT infrastructure leader, Hangzhou Hua San Communication product management and marketing vice President Zheng Zhisong said that in the future, NFV will be closely combined with SDN, to the greatest extent to meet the user's service speed, business capabilities and ease of operation requirements, resulting in excellent value.

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