Topology discovery system of next generation Internet based on IPv6 (Internet Protocol Version 6) and realizing method thereof

Abstract

The invention discloses a topology discovery system of a next generation Internet based on the IPv6 (Internet Protocol Version 6), comprising a detection list input module, an equipment and connection relation discovery module, an equipment and subnet topology discovery module, an analysis integration module, a topology structure information storage module, a database and a topology structure information display module. The invention also discloses a realizing method of the system, comprising the following steps: (S1) forming a detection node list by the detection list input module; (S2) sending a network path detection packet by the equipment and connection relation discovery module to acquire a router marked by an IPv6 address and a connection relation thereof, and exchanging network topology information between the equipment and subnet topology discovery module and the router on the network to acquire the network topology information; and (S3) analyzing by the analysis integration module to form an integrated topology structure diagram. The invention has the advantages of enhanced stability, better performance, alias removal, and the like and effectively improves the accuracy and the integrity of topology discovery.

Description

technical field [0001] The invention belongs to the technical field of computer network management, in particular to an IPv6-based next-generation Internet topology discovery system and its implementation method. Background technique [0002] Over the past 20 years, IPv4 has made brilliant achievements as the standard of the Internet. But with the rapid development of the Internet, the defects of IPv4 network have become more and more obvious. For example, the address space is insufficient, the end-to-end communication quality cannot be guaranteed, the network configuration management is difficult, and it is difficult to communicate with the mobile network. Compared with IPv4, IPv6 has the following advantages: good scalability, reliable security, diversified service quality, easy management, and mobility. In addition, it can well support multicast services and improve network security. overall throughput. After using IPv6, a large number of non-computer terminals will ha...

AI Technical Summary

Problems solved by technology

At present, many routing protocols use local link addresses to define the ipv6RouteNextHop object in the routing table, rather than using the global address definition, so the topology discovery mechanism based on the SNMP (Simple Network Management Protocol, Simple Network Management Protocol) search algorithm in IPv4 Cannot be used directly in case of IPv6

Third, although the standardization organization has defined IPv6 management-related MIB (Management Information Base, Management Information Base), most network devices currently do not support these MIB standards or do not fully support them, and the SNMP protocol cannot be used in IPv6 topology discovery. Play a role

In addition, the Traceroute detection method cannot discover network segment information, and the information found is incomplete, that is, the coverage of nodes and links is not high

The coverage rate depends on the number of detection nodes. If more detection nodes are added to improve the coverage rate, the detection time will be increased and more routing alias problems will occur.

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