Packet processing device and method by multiple processor cores

Abstract

The invention provdes a packet processing device and method by multiple processor cores, which can build up various virtual environment for all uses or all services, and carry out data stream processing in high speed. The packet processing device includes multiple processor cores and memory connected to the multiple processor cores, upon reception of a load request of a program, selects a processor core to which the program has not yet been loaded, loads the program to the selected processor core, retains first association information that associates attribute information specified by the load request with the processor core to which the program has been loaded, upon reception of the packet, specifies the attribute information corresponding to the received packet, and transfers the received packet to the processor core corresponding to the specified attribute information.

Description

technical field [0001] The present invention relates to the processing of data streams such as data packet streams in a network. Background technique [0002] One of the problems of processing data flow in a network is to provide a plurality of high-function services that cannot coexist on a network node to a plurality of users, and to add or delete services and change the content of services during network operation. In order to provide such services over a physical network, virtualization of the network is required, that is, it needs to be treated as if a separate network for each user or each user group is used. In addition, in order to process high-performance services in each network node, the flow of packets input from and output to the communication line needs to be performed at a speed as close as possible to the maximum transmission speed (line speed) of the communication line. deal with. [0003] As existing technologies that can be used for data stream processin...

AI Technical Summary

Problems solved by technology

[0008] In the virtualization software technology, since the processor is also used by time division in the same way as the time-sharing system, the above-mentioned problems caused by task switching cannot be solved.

In addition, although the layer 3 (IP layer) addresses of the sender and receiver are included in the data packet used for communication in the network, when the switch transmits the data packet based on the information of the layer 2, the data packet does not include the The address of the switch through which the packet is relayed

However, there is a problem that in the virtualization software technology, an address needs to be added to the network interface for communication, and the address needs to be specified as the destination of the packet.

[0013] However, in this method, the program executed by the processor core is fixed in advance, and the destination of the distribution packet is also fixed, so it is not possible to add or delete services or change the content of services during network operation.

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