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A router fast forwarding method and a system for implementing the method

A forwarding method and router technology, which is applied in the field of network communication, can solve problems such as increasing router costs, and achieve the effects of improving forwarding efficiency, improving search efficiency, and optimizing structure

Active Publication Date: 2016-07-13
深圳市磊科实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the traditional Chinese medicine must increase the cost of the router to improve the data packet forwarding efficiency, provide a router fast forwarding method and a system for implementing the method, and reduce the router cost

Method used

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  • A router fast forwarding method and a system for implementing the method
  • A router fast forwarding method and a system for implementing the method
  • A router fast forwarding method and a system for implementing the method

Examples

Experimental program
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Effect test

Embodiment 1

[0037] This embodiment provides a router fast forwarding system and its implementation method, which can increase the data packet forwarding rate without increasing the router's processing burden.

[0038] Such as figure 1 and figure 2 As shown, the router fast forwarding system is included in the router, and mainly includes several hardware units, which are respectively a data receiving unit and a search unit connected in sequence, a creation unit connected to the search unit, a data packet processing unit, and a data packet An update unit connected to the processing unit, wherein the data packet processing unit also includes an active data processing subunit and an aging processing subunit.

[0039] The role of each unit is as follows:

[0040] The data receiving unit is used to obtain the connection information in the IP data packet. Including source IP address, destination IP address, source port number, destination port number, interface number.

[0041] The search u...

Embodiment 2

[0095] Wherein, based on Embodiment 1, this embodiment also provides source address replacement during forward connection, and its implementation method is as follows:

[0096] (1) Router interface A receives the data packet and recognizes it as an IP data packet. The connection information contained in the data packet is as follows:

[0097] Source IP address: 4.4.4.4, source port number: 8080, destination IP address: 5.5.5.5, destination port number: 80, protocol type: TCP.

[0098] (2) Look up the fast forwarding table, because there is an entry for this connection, according to the fast forwarding path information of this entry (source address translation (NAT) information: 6.6.6.6, destination address translation information: empty, routing information: 6.6.6.1, Quality of Service (QoS) marking information: 2), modify the source IP address of the IP packet to 6.6.6.6, and recalculate the checksum, and finally put the IP packet directly into the next hop according to the r...

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PUM

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Abstract

The invention provides a router fast forwarding method and a system for implementing the method, belonging to the technical field of networks. The method in the present invention is as follows: first, the router receives and identifies the IP data packet from the interface of the router, and extracts its connection information for the identified IP data packet; secondly, the router searches for the fast forwarding table corresponding to the interface; if there is a fast forwarding table entry, Then update the fast forwarding table, including active data processing and aging data processing, and create a fast forwarding table if it does not exist. Packet processing unit. The invention solves the existing problem of how to improve the data packet forwarding efficiency on the basis of not increasing the cost of the router, greatly saves the cost, and further improves the forwarding efficiency of the router.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a router fast forwarding method and a system for implementing the method. Background technique [0002] Traditional data packet forwarding needs to go through the operations of receiving at the physical layer, receiving at the link layer, processing at the network layer, sending at the link layer, and sending at the physical layer. Among them, the network layer processing needs to match many access control rules one by one for all data packets through the TCP / IP protocol stack, and search the routing table through complex routing algorithms. These operations will bring a large processing burden to the router data processing module. And the processing takes a lot of time. [0003] The prior art utilizes the functions of dedicated hardware or high-speed cache technology to achieve wire-speed forwarding. Although high-speed and high-efficiency forwarding can be guaranteed, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/721H04L29/08H04L29/12H04L45/74
Inventor 胡强
Owner 深圳市磊科实业有限公司