Flow-classification-based grouping flow control system and control method
A flow control and flow classification technology, which is applied in the field of data communication, can solve the problems of unrelated and unresolved data packet flow control with different characteristics, and achieve the effect of accurate flow size and accurate control
Active Publication Date: 2014-05-14
XIDIAN UNIV
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Problems solved by technology
Traditional flow classification either does not associate the result of flow classification with flow control, or simply extracts the priority of the packet and then performs flow control, so it cannot solve the problem of providing accurate flow control for data packets with different characteristics
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[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0038] refer to figure 1 The packet flow control system based on flow classification provided by the present invention includes a field table module, a rule table module, a token bucket parameter table module, a flow control parameter table module, an input buffer module, a matching module, a flow control decision-making submodule, and The flow control parameter table cyclically updates the sub-module. in:
[0039] Field table module: used to set t fields extracted from the packet header, this field refers to the address, service level and protocol number in the header of different layers of the data packet, where t is a positive integer greater than or equal to 1;
[0040] The rule table module is used to set n rules for classifying data groups, each...
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The invention discloses a flow-classification-based grouping flow control system and a control method, and mainly achieves the purpose that different flow control is provided for data grouping with different characteristics. The system comprises a field list, a rule list, a flow-control parameter list, a token bucket parameter list, an input cache module, a matching module and a flow-control module. The method comprises the following steps that the rule list, the field list, the flow-control parameter list and the token bucket parameter list are configured at first, data grouping is received from a network and stored in the input cache, fields set in the field list are extracted from the head part of the data grouping and matched with rules in the rule list through searching the rule list, after the matching, a flow-control tag is given and taken as the index, corresponding flow-control parameters are extracted, and then flow control of the data grouping is achieved. The invention has the advantage that delicate flow control can be realized, and is suitable for being used in the communication environment that flow control varies as the characteristic of data grouping.
Description
technical field [0001] The invention belongs to the field of data communication, relates to a flow control method for data packets, and can be used in a packet communication environment that needs to provide different flow controls for data packets with different characteristics. Background technique [0002] With the rapid development of the Internet, people's demands on the network are becoming more and more diverse. The traditional single Best Effort service can no longer meet the diverse network needs. Network providers urgently need to provide different levels of network services. Quality of Service QoS. The most commonly used method now is to extract the priority field in the data packet to determine the level of service provided. However, with the emergence of new services such as control access lists, differentiated services, policy routing, etc., it is urgent to divide data packets more accurately and mark the business class to which each data packet belongs, so as...
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IPC IPC(8): H04L12/801H04L12/811
Inventor 潘伟涛邱智亮孙汉汶赵伟伟张冰姚明旿鲍民权张奭刘焕峰史琰
Owner XIDIAN UNIV