Routing selection method of cognitive network based on mapping mechanism

Abstract

The invention discloses a routing selection method of a cognitive network based on a mapping mechanism, which is divided into two parts, namely discovering network topology and defining link cost. The method is as follows: discovering a network topology structure by a wincap probe packet sniffer; on the basis of multi-plane parameter mapping, defining different link costs for different services of different users; and updating the link costs in real time according to the network states, thus realizing adaptive routing selection. In the routing selection method, the implementation is simple, the control can be flexible, the repeated links can be realized by adjusting the link cost instead of establishing a plurality of routing tables, and the work for a cognitive network router is reduced.

Description

technical field [0001] Aiming at the characteristics of cognitive network rerouting, the present invention performs different routing selections for different services and different users, and at the same time, in view of real-time changes in service status in the network, the cognitive routing selection also needs to be updated in real time. Based on topology discovery, Primm's algorithm is used to dynamically adjust link weights in real time to implement cognitive routing strategies. The invention belongs to the technical field of cognitive network routing selection methods. Background technique [0002] How to implement routing selection in the network is a hot research topic at present. Commonly used intra-domain protocols such as RIP and OSPF, and inter-domain protocols such as EIGRP have been widely used in the network. In many studies, various improvements have been made to routing protocols based on graph theory. [0003] However, in the current traditional networ...

AI Technical Summary

Problems solved by technology

First of all, the traditional routing table cannot realize the policy selection of different routes for the data packets of different users and different services in the network, but uses a unified routing table for forwarding; secondly, when the network business is busy, the traditional routing table still uses A unified routing strategy may cause some links to be busy while others are idle (although forwarding through this link can also reach the destination); finally, when the link status changes, the cognitive network believes that the network should be real-time Discover this change in a timely manner, so as to adopt corresponding strategies to realize new routing selection, while traditional routing obviously cannot do this

Images