Rai: The challenge of cloud computing to network and the analysis of technology development

The 2nd Session of the "2012 China Data Center Industry Development Conference" was held in Beijing on the 20,112-month 17th, in the afternoon cloud computing and flexible and efficient IT Infrastructure Forum, China Telecom Beijing Research Institute of Broadband and Internet Innovation Center cloud computing Technology and application team director Rai did the theme " The presentation of cloud computing's challenges to the web and its technical development analysis. Rai said that network capacity is the basis of the development of scale, cloud computing is the core, the future is the era of data, data are basically in the data center, which is the core of the whole era.

China Telecom Beijing Research Institute broadband and Internet Innovation Center cloud computing Technology and application team director Rai

Rai: I'm glad to have the opportunity to communicate with you. This is our telecommunications last September Cloud product launch, our cloud Architecture (English), Cloud computing and mobile Internet is inseparable. From the request of our group, the network ability is the foundation of the scale development, cloud computing is the core, the future era is the data age, the data is basically inside the data center, this is the core of the whole age. We guide users or rely on the application, more industry development.

Take a look at this picture, this is the 2010 3G penetration, this inflection point came, bringing the mobile internet era of the full coming. From 10 to now the two years of smart phone development faster, this year is almost 140 million of the smartphone shipments, it brings the effect is that the network has more experience.

The speed of the network connection is fast, 2G also can surf the internet, why not get up, is because it is not so fast. Requires data center interconnection, high-density large capacity. We now put forward a smart pipeline in China Telecom, according to the different levels of service, according to the needs of your application to achieve. You see a ball game at home, you have something to go out, you can take the mobile phone in this place to see, this is a good experience.

Clouds are hotter these years, but from a basic point of view, it is the two basic modes of operation that extend out. On the left, this is virtualization, which is to virtual a physical machine into more than one virtual machine, it is from the promotion of efficiency. The second is distributed, is large-scale file processing, massive data processing, you can combine a lot of servers into a large server. There are probably two modes of virtualization and distribution, all of which are extended based on these two patterns.

The traditional data center is usually the computer room rack rental, the second type is a collaborative data center, such as business search, business systems work together, the other is graphics processing, rendering data center. The third category is virtualized data centers, which provide remote virtual data centers for enterprises.

This is our traditional data center, in the rack, each is isolated from each other, they are to meet the requirements of external services, its architecture is a vertical architecture, the core, the convergence of the switch between the IGP protocol. This is based on vertical data flow.

We look at the distributed computing model, the challenge is the horizontal, internal network load energy to be very large, to be able to host network reliability.

The requirements of virtualization are the flexibility of the network, improve the utilization rate of the single machine, improve the capability of the data center, transfer the virtual machine, maintain the load and so on. The main requirements of the server virtualization migration, the exchange of traffic will be relatively large.

The first Data center is the development of large-scale, the scale will be very large. Requires more network connectivity, finer-grained provisioning and allocation. The technology of mashups is widely used, and the traffic between different clusters of data centers can be greatly improved.

Virtual perception has two mainstream programs, one is IEEE802.1QBG, one is IEEE602.1QBH, it is to extend the switch to the server inside, to the last two will be basic to integration, the problem is how smooth transition past. Two-tier network multipath, these two are in the standardization, some manufacturers also out of some versions, such as (English), it is a smooth upgrade expansion. Two-layer multi-link frame bundle technology is Cisco proprietary technology, with link double allied, to solve the STP block off other links caused by bandwidth loss. Implemented through link bundling across the frame, only 2 link bundles are supported.

Cross-IDC interconnection, one is VPLS technology, to achieve multiple data center point to more than two layers of interconnection. One is OTV technology.

Development trend analysis, the first is the problem of integration. Two-layer three-layer forwarding fusion. Physical layer consistency. The isomorphism of the storage network and the transmission network.

The second is differentiation.

New network connection architecture, one is InfiniBand, one is qfabric.

The other is SDN, mainly apenflow, control pla separation architecture, the control logic from the Network Settings box, you can go into any programming to implement a new network protocol, topology architecture without changing the network settings themselves.

My speech will be here, thank you.

(Responsible editor: The good of the Legacy)