Data center, method for processing data and network controller

Abstract

The invention discloses a data center, a method for processing data and a network controller. In the data center based on an SDN, a server generates a corresponding data packet according to protocols supported by the server; a switch receiving the data packet determines that the data packet is a first data packet in a data stream to which the data packet belongs, and the network controller generates a forwarding path according to the type of a data packet forwarding port; other data packets in the data stream to which the data packet belongs are forwarded through the generated forwarding path. According to the method, the type of the data stream is recognized according to the type of the data packet forwarding port, an optimal forwarding path suitable for the data stream is planned, different service grade qualities are matched for different data streams, the bottleneck of data transmission is avoided, and maintenance cost is reduced. Through the data center based on the SDN, the complexity of an original data center is lowered.

Description

technical field [0001] The present invention relates to software defined network (SDN, Software Defined Network) technology, in particular to an SDN-based data center and a method for realizing data processing and a network controller. Background technique [0002] At present, in order to realize the communication between servers in the data center and between data centers, it is necessary to build a network structure, figure 1 It is a schematic diagram of the network structure of the existing data center, such as figure 1 As shown, with computing servers as the boundary, the network in the data center can be divided into a front-end network and a back-end network. Among them, the front-end network mainly bears the communication between computing servers in the data center and with servers outside the data center. It is based on the TCP / IP network architecture, and the implementation technology is IP+Ethernet (Ethernet). The back-end network carries the communication from ...

AI Technical Summary

Problems solved by technology

[0003] The introduction of FC SAN technology has caused the following problems in the network of the data center: multiple networks, that is to say, for computing servers, they are in two networks, Ethernet and FC SAN; multiple port protocols, due to the existence of computing servers In multiple networks, in order to meet the needs of different networks, the computing server needs to have a network port supporting multiple protocols, which increases the complexity of the computing server; and cost issues, because FC SAN uses optical fiber communication, the link High equipment cost

[0006] On the one hand, in order to ensure high-speed data transmission between the computing server and the storage system, and to prevent the data transmission between the storage systems from occupying Ethernet resources, in the data center, the communication network of the computing server and the communication network of the storage system Separated to build two networks, which leads to the problem of multiple networks: the front-end network uses IP+Ethernet technology for networking, and the storage network uses SAN technology

Therefore, in the pattern of multiple networks between data centers, it will inevitably lead to the problem of speed mismatch between the front-end network and the back-end network, resulting in the bottleneck of data transmission

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