Access control list finding method and data stream classification device

A classification device and data flow technology, applied in the field of network switching, to achieve the effect of increasing cost and power consumption, reducing usage rate, and satisfying high-speed search

Active Publication Date: 2012-01-11
ZTE CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] It can be seen that the existing ACL search methods cannot meet the high-speed s

Method used

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  • Access control list finding method and data stream classification device
  • Access control list finding method and data stream classification device
  • Access control list finding method and data stream classification device

Examples

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Example Embodiment

[0036] The basic idea of ​​the present invention is: the data stream classification device saves a feature array list of the rules of IP address restriction, and saves the rules according to the storage location index value; after the data stream classification device receives the data packet, it uses the feature array list to confirm the received If the data packet meets any rule, the storage location index value is calculated, and the matching rule of the data packet is extracted according to the storage location index value.

[0037] Here, the feature array list is divided into three categories, including: a destination IP feature array list, a source IP feature array list, and a dual IP feature array list.

[0038] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0039] Such as figure 1 As shown, the data stream classification device of the present invention includes: a receiving control module 11, a rule...

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Abstract

The invention discloses a data stream classification device, which comprises a rule index module, a rule storage module and a receiving control module, wherein the rule index module is used for storing a feature digit group list of a rule with the Internet protocol (IP) address limitation, receiving data packets sent by a control module, calculating the storage position index value after verifying the coincidence of the received data pack to any one rule by the feature digit group list, and obtaining the rule from the rule storage module according to the storage position index value, the rule storage module is used for storing the rule according to the storage position index value and providing the rule for the rule index module, and the receiving control module is used for sending the data packet to the rule index module after receiving the data packets. The invention also discloses an access control list (ACL) finding method. When the data stream classification device and the ACL finding method are adopted, the high-speed finding requirement can be met under the condition without increasing the cost and the power consumption.

Description

technical field [0001] The invention relates to network switching technology, in particular to a method for searching an access control list (ACL, Access Control List) and a device for classifying data streams. Background technique [0002] It is the core router that plays a key role in the network performance of the network flow meter. The core router usually uses ACL to control the flow and improve the network performance. ACL includes rules and corresponding actions. Wherein, the rule is used to divide the received data packet into different streams, for example, the data packet can be divided into a data packet flow by utilizing the interconnected protocol (IP, Internet Protocol) address and the destination IP address between the source networks; After distribution, corresponding processing is performed on the data packets in the data packet flow, for example, the priority of the data packets can be increased or discarded. The composition of ACL rule can be: the source...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L45/74
Inventor 张炜李彧程晨闫昭博赵有健全成斌
Owner ZTE CORP
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