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Method and system for packet processing according to a table lookup

A table look-up and package technology, which is applied in the field of package and system processing according to the look-up table, can solve problems that do not meet product requirements, etc.

Active Publication Date: 2022-02-15
OPTICORE TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In some cases, it does not meet the product requirements considering the target market and selling price

Method used

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  • Method and system for packet processing according to a table lookup
  • Method and system for packet processing according to a table lookup
  • Method and system for packet processing according to a table lookup

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Embodiment Construction

[0024] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. Terms are to be further understood; such as those defined in commonly used dictionaries, should be construed to have a meaning consistent with their meaning in the context of the relevant art and present disclosure, and are not intended to be idealized or overly formal unless expressly so defined The meaning of is explained here.

[0025] Reference throughout this specification to "one embodiment" or "one embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in one embodiment" in various places in this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or ch...

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Abstract

The present invention provides a method and a system for packet processing according to a lookup table, the method comprising: receiving a packet, wherein the packet includes a packet header, and the packet header consists of control information; providing a lookup table with M entries, wherein each entry includes N conditions and a result / action indicator, and the M entries are sorted in a priority order; matching the information with the N conditions; and applying the result / action indicator in the matched entry with the highest priority on the packet according to the matching result.

Description

technical field [0001] The present invention relates to a method and system for grouping processing based on table lookup, more particularly, to a method and system for hardware lookup table to search prioritized, multi-condition and contain wildcards Methods and systems for table entries. Background technique [0002] Traditionally, there are several existing methods to implement lookup tables. One is to use the so-called CAM (Content-Addressable Memory), and the other is to calculate the table index by using the Hash Function (hash function). [0003] Content-addressable memory (CAM) may refer to a special type of memory used in certain ultra-fast seek applications. Also known as Content Addressable Memory, it consists of searching for data against an input stored in a table and returning the address of the matching data. [0004] CAM is also often used in networking equipment because CAM speeds up forwarding information base and routing table operations. This associat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L45/745
CPCH04L45/745H04L69/22H04L67/566H04L47/24
Inventor 萧义龙周智良
Owner OPTICORE TECH INC