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FPGA-based network exchange IP core

A technology of network switching and network data packets, applied in the field of network switching IP cores, can solve problems such as difficulty in adapting to time changes, inability to change its own structure, elimination or discarding, etc., to achieve the effect of improving network utilization efficiency and adapting to network changes

Inactive Publication Date: 2016-05-25
INSPUR GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Traditional network switching hardware is difficult to adapt to the ever-changing network
Traditional customized network switching hardware cannot change its own structure when the network is upgraded or changed, so that part of the hardware needs to be eliminated or discarded when the network is upgraded or changed, causing unnecessary losses

Method used

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  • FPGA-based network exchange IP core

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Embodiment Construction

[0016] An FPGA-based network switching IP core is provided with a MAC layer, including a port scheduling module, a message parsing and classification module, a data cache, a Hash table, a priority classifier, a token bucket, a token bucket scheduling module, a forwarding engine, packaged modules;

[0017] Network data packets entering the MAC layer are converted into avalon interface mode and enter the port scheduling module; the port scheduling module sends out the data packets entering each port in turn, and the data packets enter the packet parsing module; the data packets are parsed out of quintuples, The packet parsing module diverts the five-tuple and the data packet bypass; the bypass data packet enters the data cache, the five-tuple enters the Hash table, queries the priority and security policy for it, and outputs the data packet, priority and security policy together , enter the priority classification module; the priority classification module decides whether to ope...

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Abstract

The invention discloses an FPGA-based network exchange IP core, and belongs to the field of IP technology. The FPGA-based network exchange IP core is provided with an MAC layer and comprises a port scheduling module, a message analysis and classification module, a data cache, a Hash table, a priority classifier, a token bucket, a token bucket scheduling module, a forwarding engine and a packaging module; and different network data packets are forwarded in layers according to different priorities, so as to improve the network utilization efficiency. In addition, due to the reconfigurable property of FPGA, functions of the IP core can be decreased or increased according to actual network conditions to better adapt to network changes.

Description

technical field [0001] The invention discloses an FPGA-based network switching IP core, which belongs to the technical field of IP. Background technique [0002] In recent years, with the continuous construction and development of my country's network, the network has become more and more diverse. Traditional network switching hardware is difficult to adapt to the ever-changing network. Traditional customized network switching hardware cannot change its own structure when the network is upgraded or changed. As a result, some hardware needs to be eliminated or discarded when the network is upgraded or changed, causing unnecessary losses. The invention proposes an FPGA-based network switching IP core. The IP core is realized based on the FPGA, and the traditional network switching work is transplanted to the FPGA. Realize different network data packets, according to different priorities, perform layered forwarding, thereby improving network utilization efficiency. In additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/931
CPCH04L49/40
Inventor 滕达郑亮于治楼
Owner INSPUR GROUP CO LTD
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