1. Re-understand the importance of 100G for cloud computing networks

1. Re-understand the importance of 100G for cloud computing networks

1.1 Large-scale operating cloud computing needs 100G Network

Cloud computing services provide an almost limitless amount of computing, storage, and data communication capabilities from a technical and operational standpoint, so the IT infrastructure that delivers cloud computing services must be the "super carrier", a data center that has assembled a large base of resources.

The large-scale centralized operation of cloud computing IT resources can greatly optimize the distribution and scheduling of basic resources. Therefore, the ideal business model is that for companies or individuals using cloud computing services, the best way to meet it business is to grow computing power on demand, to deploy quickly, to dynamically adjust workloads, and to invest in cost planning. For cloud computing service providers, to meet the IT resource requirements of a large number of customers (individuals or businesses), their IT infrastructure needs to have a large pool of resources that can provide matching it resource support based on the growth in the number of service customers and the changing requirements of customer business load growth.

Large-scale It centralized construction and operation also brought a substantial cost-saving effect, from a foreign data display (as shown in Figure 1), in a large-scale IT service environment, network, storage, server/management, and other inputs will be greatly reduced in the unit resource scale, Thus, under the condition of large-scale operation, the unit resources can bring more output.

In a large-scale cloud computing environment, performance has undoubtedly become the core element of concern. Currently in the Gigabit/Wan Shao (WAN Many enterprises are still in the 155/622m) of the regular basic network may be able to meet the initial cloud services or small cloud services, but as the cloud computing resources and scale continues to expand, quantitative changes will inevitably lead to qualitative change, cloud computing data Center as the core of information computing services , network distribution based on 100G interface will soon become the inevitable choice for large-scale cloud computing.

For example, an internet company in China, the size of a single data center more than million servers, in the implementation of multiple data centers back-end network connectivity, found that the volume of internal business with the overall size of the expansion (data center size, increase in the number of data centers) rose quickly, A single data center to the internal Business network link has been expanded to 16 10G, therefore, to seek n*400g/1000g ultra-high speed interconnection is a cost-effective choice of options.

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