Method and device for three-layer virtual special network topological automatic discovering in network management system

Abstract

The present invention discloses three layers virtual special network topological automatic discovered method and apparatus in a net tube system. The method includes the following steps: determining logical relationship chart of topological between network elements, storing all connected relation of two equipments by triple (router identification, chain circuit identification, router identification) form in database; determining network element of ASBR by analyzing different parameter on network element; executing summarizing gather for VPN information parameter from every network elements, and storing in data-base; generating topological structural drawing according to collected topological triple data and related VPN parameter. Method and apparatus of the present invention omits router roles steps in user designating across field network because the present invention can automatically distinguish different router roles and its main VPN parameter, etc in across field VPN network, and improves automatic discovered intelligent and efficiency.

Description

technical field [0001] The invention relates to a network management method and device in a data communication network, in particular to a method and device for automatically discovering cross-domain virtual private network topology in a network management system. Background technique [0002] In the prior art, MPLS (Multi Protocol Label Switch, multi-protocol label switching) three-layer VPN (Virtual Private Network, virtual private network) refers to a three-layer virtual private network based on the MPLS protocol, which is currently the most potential new generation One of the telecommunications business. [0003] The VPN technology based on the MPLS network builds the private network of the enterprise or a specific user group on the public IP network, realizes multi-service broadband connections such as data, voice, and image, and combines differentiated services, traffic engineering and other related technologies to provide users with high quality service. This greatl...

AI Technical Summary

Problems solved by technology

[0016] First, it is difficult for network administrators to obtain the overall situation of the VPN network actually running on the current IP network in a convenient and timely manner, and form an intuitive network topology map;

[0017] Second, the VPN network management is limited to a certain autonomous domain, so that the network administrator cannot view the complete information of VPN services across multiple autonomous domains

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