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A method and system for intelligent packet routing based on ipv6 extension header

A technology of intelligent route selection and extended headers, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as invariable performance, different transmission rates, transmission delays, bit error rates, and packet loss rates. To achieve the effect of QoS guarantee

Active Publication Date: 2020-09-29
WUHAN GREENET INFORMATION SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the actual network environment, the transmission links between routers at various levels often have different transmission qualities due to business busyness, light attenuation changes, fault interruptions, or parameter configurations. The protocol cannot reflect the change of service transmission quality in the routing rules, so the two IP packets before and after the same service between the same group of senders and receivers are different due to the different transmission links they pass through during the transmission process. The transmission rate, transmission delay, bit error rate and packet loss rate, etc.

Method used

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  • A method and system for intelligent packet routing based on ipv6 extension header
  • A method and system for intelligent packet routing based on ipv6 extension header
  • A method and system for intelligent packet routing based on ipv6 extension header

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Embodiment 1

[0039] Based on the RFC2460 protocol, this embodiment uses a self-defined transmission path characteristic header as an extended header to record the real path information of the IPv6 data message in the forwarding process, and determines the optimal forwarding of the message through the method provided by this embodiment. Finally, the optimal path information is embedded in the IPv6 routing header defined in the RFC2460 protocol, so as to precisely control the forwarding path of data packets and realize the QoS guarantee of services.

[0040] IPv6 is the basic protocol of the next-generation Internet (RFC2460). The protocol allows the definition of a series of extension headers to flexibly transmit various information, and there is no maximum length limit for the extension header, which can accommodate all the extension data required for IPv6 communication, and IPv6 report The hop-by-hop options header in the text will be processed by each router on the packet transmission lin...

Embodiment 2

[0083] In some specific implementation manners, the method for intelligent routing of packets based on IPv6 extension headers provided in Embodiment 1 can be implemented by using the system for intelligent routing of packets based on IPv6 extension headers provided in this embodiment.

[0084] Such as Figure 7 The simplified network topology diagram shown in this implementation is a schematic topology diagram of the intelligent routing system used in a common IPv6 communication network.

[0085] The intelligent routing system provided in this implementation includes: A-side network-side egress router 1, B-side network-side egress router 2, transit routing network 3 and at least one intelligent routing device 4, wherein the transit routing network 4 includes at least two Switch to router. The egress router 1 on the network side of end A and the egress router 2 on the network side of end B are respectively located on both sides of the transit routing network.

[0086] An inte...

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Abstract

The invention relates to the technical field of routing, and provides a method and system for intelligent routing of messages based on IPv6 extension headers. Including: each transit router passing by the IPv6 message writes forwarding path information and corresponding quality of service information into the transmission path characteristic header; updates the path characteristic temporary table according to the transmission path characteristic header in all IPv6 messages received; The data of each forwarding path in the path characteristic temporary table generates a routing table according to the reverse order of the forwarding path; generates an intelligent routing table according to the data of each forwarding path in the routing table; selects the complete routing table that meets the requirements from the intelligent routing table. The forwarding path is filled in the routing header of the IPv6 service message to be forwarded, and the IPv6 message is forwarded according to the selected complete forwarding path. The invention calculates the optimal forwarding path of the service data message according to the obtained transmission path information and the QoS guarantee requirement of the service, and realizes the QoS guarantee of the service.

Description

technical field [0001] The invention relates to the technical field of routing, in particular to a method and system for intelligent routing of packets based on IPv6 extension headers. Background technique [0002] With the popularization of the network and the diversification of services, the Internet traffic has surged, and various services have interacted with each other and seized limited network resources, resulting in network congestion, longer transmission delays, increased bit error rates, and increased packet loss rates. Problems, leading to a decline in the quality of service (Quality of Service, QoS for short) or even unavailability. The most effective solution is to apply a "guaranteed" strategy to manage network traffic. QoS technology is developed under this background, and its purpose is to provide end-to-end services for the different needs of various businesses. quality assurance. QoS is a tool for effectively utilizing network resources. It allows differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L29/12H04L12/725H04L45/74
CPCH04L45/74H04L45/302H04L2101/659
Inventor 叶志钢李特路可谭国权常青利赵雨佳
Owner WUHAN GREENET INFORMATION SERVICE