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IP ACL mergence optimization process implementing method

An implementation method and IP address technology, applied in the field of Ethernet communication

Active Publication Date: 2009-06-17
SHANGHAI BAUD DATA COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] For the above two situations that can be merged, there is no very effective solution for the existing technology, which can realize the merger and optimization of IP ACL through a technical processing mechanism for these two situations at the same time.

Method used

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  • IP ACL mergence optimization process implementing method

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Embodiment Construction

[0046] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0047] According to the content of the above invention, a specific example of the present invention is listed below.

[0048] The mask in the IP ACL defined by the present invention is also called merge mask (merge mask), which is composed of 32 long binary numbers and 4 octets. Among them, 1 means that it must match exactly, and 0 means any match (that is, don't care), and the merge mask can be obtained by using a normal subnet mask to mask out the bits that don't care. There are two rules:

[0049] Ri: permit 220.181.12.36 255.255.255.255

[0050] Rj: permit 220.181.12.37 255.255.255.255

[0051] Rules Ri and Rj satisfy merge condition 1, write them in binary form:

[0052] Ri: 11011100.10110101.00001100.00100100 / 32

[0053] Rj: 11011100.10...

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Abstract

The invention discloses a method for realizing IP ACL merging optimization treatment, which is currently applied on a switchboard of Boda series. The method comprises analyzing the action and match features related to an IP ACL rule, thereby achieving merging optimization treatment. The method for realizing IPACL merging optimization treatment solves the technical problems that IP ACL items are too many, and IP ACL rule testing efficiency of the switchboard is led to be slower, and meanwhile, an original hardware table item is limited, and then, a hardware table can not satisfy the requirements of users possibly, the IP ACL merging optimization treatment saves space of a hardware table, and further improves the search efficiency of the hardware table of the switchboard.

Description

Technical field: [0001] The invention relates to the field of Ethernet communication in data communication, in particular to a method for realizing IP ACL merging optimization processing. Background technique: [0002] IP access control list (access control list, ACL) is used to filter IP traffic, in which RFC1700 defines well-known port numbers, RFC 1918 defines private IP address space, such control can help limit network transmission and pass certain user or device restrictions network usage. In order to make the data packets valid or invalid from the cross-designated interface, Boda series routing switches provide IP ACL. An IP ACL is an ordered collection of permission and prohibition conditions for applying IP addresses. The ROS software of the routing switch of Boda Company (used to realize the user management interface of the switch, learn the relevant table items of the second layer and the third layer, and manipulate the switching chip to forward the layer two an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/28H04L29/12H04L12/947
Inventor 汪革孙希苟利平杨玉华
Owner SHANGHAI BAUD DATA COMM
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