Routing configuration method and device for virtual private network

Abstract

The invention provides a method and device for route configuration of a virtual private network. The method for route configuration of the virtual private network comprises the steps that at least two candidate routes from a current node to a target node are worked out according to the target address of the target node; according to the device role of a next hop node of the current node in the candidate routes, the route priorities of the candidate routes are determined; the candidate route with the highest priority is selected to be used as an optimal transmission route, and other candidate routes are selected to be used as standby transmission routes. In this way, determination of the priorities of the routes is converted into determination of a master and slaves of access nodes; due to the fact that the number of the access nodes is far smaller than the number of the routes in an L3VPN network, the workload generated during configuration is small, operation efficiency is high, the configuration error rate is low, and the requirement for professional skills of configuration personnel is low.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to the technical field of LTE (Long Term Evolution, long-term evolution) network, and in particular to a routing configuration method and device for a virtual private network. Background technique [0002] At present, L3VPN (3layer3Virtual Private Network, three-layer virtual private network), as an IP-based VPN (Virtual Private Network, virtual private network) technology in LTE network, can set up a three-layer reachable network for users on the public network. The dedicated virtual private network (core layer network, aggregation layer network, access layer network) provides virtual dedicated routes for users of different access points, and realizes the isolation and interconnection of routes between different access points. The solution of statically configuring virtual private routes is the static L3VPN solution. Different from the dynamic L3VPN solution that configures ...

AI Technical Summary

Problems solved by technology

[0004] However, although the existing technology can realize the automatic calculation of static routes, it cannot automatically determine the routing priority of the static L3VPN network, that is, it cannot determine the forwarding route and protection route, and can only be configured manually

On the LTE network using the static L3VPN solution, the number of routes usually ranges from several thousand to tens of thousands. For large-scale networks, the number of routes can even reach as many as one hundred thousand. Manually configuring route priorities for such a large number of routes not only The operation efficiency is low, and the configuration is cumbersome and error-prone. At the same time, the configuration personnel need to have a high degree of understanding of routing protocols and network planning, and their professional skills are extremely demanding.

Images