Major challenges and development trends of data center network technology in Internet projects

The network is the most stable part of the data center, and the technology has not changed fundamentally for decades. However, with the popularization of the Internet and the rise of new technologies such as cloud computing and big data, the network has become a major stumbling block to the development of data centers. It is imperative to transform the network, but the network has a lot of historical baggage. The old Ethernet protocol is still the only widely used protocol in the current network (except for storage networks). To adapt to the development needs of the new situation and new environment, the network must introduce some new equipment and new technologies. This process is not smooth sailing, and network technology faces great challenges.

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Core Data

In the data center network, the most widely used is the switch. The switch that can provide 200G must be some large frame-type equipment. In the past few years, it was a common phenomenon that the network equipment could not reach the line speed. Therefore, it was often the case that some ports were not fully utilized at the line speed, but the equipment was already congested. That is, the internal equipment was not at the maximum line speed, which brought great inconvenience to the expansion of the data center. Therefore, the data center requires network equipment to be able to reach the line speed. If it is not possible to reach the line speed, it is meaningless to provide so many ports on a board. Therefore, the real line speed inside the network equipment is the basic requirement of the data center for the network. This poses a great challenge to frame-type network equipment, which must ensure that all board ports are forwarded at the line speed inside the equipment.

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Data Group

In the process of data center development, it has become outdated. Now some loosely coupled virtualization technologies have emerged. The devices and the internal devices are all lightweight virtualization, which makes it very easy to unlock each other and has very little impact on each other. However, these technologies are still being improved, and whether they can take root in the data center remains to be seen. In any case, the current virtualization technology is no longer satisfactory, and the emergence of new network equipment virtualization technology is urgently needed.

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