Internet protocol version 6 (IPv6) based open shortest path first (OSPF) network routing information passive collection method and system

A collection method and collection system technology, applied in the field of network measurement, can solve problems such as unstable expansion and influence of collection equipment, and achieve the effect of ensuring the independence of message information and ensuring real-time performance.

Inactive Publication Date: 2016-02-03
INST OF COMPUTING TECH CHINESE ACAD OF SCI
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Problems solved by technology

Moreover, in this way, the collection device will be sensed by other routers in the network and used for routing calculations, so the instability of the collection device will inevitably extend to the entire network and affect other devices.

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  • Internet protocol version 6 (IPv6) based open shortest path first (OSPF) network routing information passive collection method and system
  • Internet protocol version 6 (IPv6) based open shortest path first (OSPF) network routing information passive collection method and system

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Embodiment Construction

[0026] The purpose of the present invention is to establish the adjacency relation and not influence the contradiction of network topology in the OSPF network environment based on IPv6 at present, has proposed the passive acquisition method and system of the OSPF network route information based on IPV6, so that network status is carried out real-time monitoring and analysis, Solve the problems of incomplete collection in existing technologies, impact on the network, and poor real-time collection.

[0027] The following are the concrete steps of the present invention, as follows:

[0028] Passive collection technology of OSPFv3 routing information in a single autonomous domain in an IPV6 network:

[0029] On an OSPFv3 network, routers exchange routing information in two phases: before routers establish routing protocol adjacencies and after routers establish routing protocol adjacencies.

[0030] Before establishing an adjacency, each router uses Hello packets to elect a DR ac...

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Abstract

The invention relates to the technical field of network measurement, and more particularly to an internet protocol version 6 (IPv6) based open shortest path first (OSPF) network routing information passive collection method and system. The method comprises steps that an adjacency relation between routers in an IPv6 network is established, only a Hello message is sent between the routers so as to maintain a necessary adjacency relation, when a certain router receives link state advertisement information, the router directly sends the link state advertisement information to an adjacent router; and if the OSPF network in the IPv6 network is a multi-autonomous domain OSPF network, a full adjacency relation is established between a collection device and the router in each autonomous domain, and a tag is arranged at the head of a collected message, wherein the tag identifies the IP address of a sender of the collected message, and an autonomous system (AS) number, in which the collected message is, is determined according to the correspondence between the IP address and the AS number. According to the method, the OSPF routing information of the ASs of a plurality of autonomous domains is collected; and the method can collect information in a passive manner, does not affect the network environment, and can collect information in real time.

Description

technical field [0001] The invention relates to the technical field of network measurement, in particular to a passive collection method and system for OSPF network routing information based on IPV6. Background technique [0002] With the rapid development of the Internet and the continuous updating of the Internet of Things and cloud computing technologies, the number and scale of network devices and mobile terminals have doubled, and the IPV4 address space was once in short supply. In order to solve this problem, a new set of protocol standard IPv6 developed by the Internet Engineering Task Force (IETF) expands the address space on the basis of the existing Internet protocol IPv4, better realizes the multicast function, and increases security. The system design better solves the problems faced by IPv4. At present, the network scale of IPv6 is growing day by day, and it is gradually replacing IPv4. [0003] OSPF (OpenShortestPathFirst Shortest Path First) is a typical lin...

Claims

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Application Information

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IPC IPC(8): H04L12/721H04L12/751H04L45/02
CPCH04L45/02H04L45/12H04L45/123
Inventor 景全亮刘琳毕经平李萌
Owner INST OF COMPUTING TECH CHINESE ACAD OF SCI
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