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Network processor

A technology of network processor and off-chip memory, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of improvement and high cost

Active Publication Date: 2014-09-10
SHANGHAI XINCHU INTEGRATED CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, whether it is a CAM cell, TCAM cell or SRAM, usually has a large surface area, as the process node continues to shrink, the probability of soft errors is greatly increased, so the cost is very high

Method used

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0034] This embodiment relates to a network processor, its structure is as follows figure 2 As shown, the network processor includes an off-chip memory and a packaging structure provided with a network processor chip and an embedded DRAM chip (the number of the embedded DRAM chips can be several); and the off-chip memory and the embedded DRAM The chips are all connected to the network processor chip; wherein, the embedded DRAM chip stores the query form data, and realizes the fast search of the data object through the embedded DRAM chip; preferably, the above-mentioned embedded DRAM chip also stores the packet data .

[0035] Wherein, the above-mentioned network processor chip is provided with several levels of on-chip high-speed caches; the above-mentioned off-chip memory can include flash me...

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Abstract

The invention discloses a network processor. Part or all of off-chip CAM (or TCAM) chips and off-chip SRAM chips, the last few on-chip CACHES of a traditional network processor and part of SDRAM chips of a network processor system are replaced by embedded DRAM chips. Both the cost and soft error occurrence probability are greatly lowered; the speed and the data throughout are improved.

Description

technical field [0001] The invention relates to the technical field of integrated circuit manufacturing, in particular to a network processor. Background technique [0002] The rapid development and popularization and application of the Internet make people put forward demands for continuously increasing bandwidth and service diversification. The future network not only requires greater bandwidth, but also requires it to be able to continuously add new services. Therefore, people constantly update the network, and add special service functions and bandwidth management functions in the network. Examples of such complex service functions include packet scheduling to provide differentiated Quality of Service (QoS) over IP, providing secure communications over public networks, balancing transmission traffic loads across multiple servers, and measuring data traffic to determine network traffic patterns and network attack behavior (intrusion detection), as well as multicast audi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/70
Inventor 景蔚亮陈邦明
Owner SHANGHAI XINCHU INTEGRATED CIRCUIT
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