Topology discovering method of IP backbone network

Abstract

The utility model discloses an IP backbone topology discovery method, pertaining to the field of computer network administration. The method can pre-set the maximal value of the discovery depth and read IP address of the seed router to obtain all of the port address and sub-net mask code of the router. As per the port address and the sub-net mask code, the sub-network address can be calculated. Such sub-network address is connected with the router. Based on the calculated sub-network address, deducing the IP address which is correspondent to the sub-net; the deduced IP address is chosen as the IP address for the router to conduct the respective self-adapting and intelligent judgment & analyzing; the connected relation for the discovered router IP address shall be kept; the discovered depth is added with 1 to judge whether the discovered depth is no less than the maximal value. If yes, it is over, or the router subjecting to the discovered IP address shall be placed in the list to be discovered. The utility model gradually extends from the router to be discovered to the outside, so as to self-adapt and discover various IP backbones' topology connection relation accurately and effectively.

Description

technical field [0001] The invention relates to the field of computer network management, in particular to a topology discovery method of an IP backbone network. Background technique [0002] The Internet has become an important infrastructure of the contemporary information society. With the continuous advancement of Internet technology, network behavior and system structure present a trend of rapid change, high complexity, and difficulty in management. The scale of the network continues to expand, the complexity continues to increase, the heterogeneity of the network is increasing day by day, heterogeneous network operating systems, diversified network communication equipment, a variety of network service software, and users and potential attackers with very different levels Makes the current network environment quite complicated. At the same time, the continuous emergence of applications also makes users have higher and higher requirements for network performance. Netwo...

AI Technical Summary

Problems solved by technology

The commonly used topology discovery is to use the next hop information in the routing and forwarding table to discover the topology of routers and subnets. Since the forwarding entries in a router’s forwarding table are very large, traversing the routing and forwarding table is very time-consuming. At the same time, there are A large number of duplicate addresses, resulting in very low work efficiency

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