Design And Implementation Of Multi-topology Routing And Related Application Research

The largest feature of multiple-topology routing (MTR) is the ability to separate different traffic, so that different traffic can be routed independently in different topologies, according to the network structure of the specified topology. Therefore, each multiple-topology (MT) maintains its own RIB and FIB independently, in order to guide the packets which are routing in the topology.This paper aims to design and implement MTR functions, and on the basis of that, to study the application of saving network resources with MTR. First, based on the experimental system platform, we designed MTR function modules and did the division of functional modules, designed the processing of related operations, including the parsing and issuing of MTR command line, the addition, modification and deletion of multiple-topology static routes and other related operations. Through the design and related processing in the paper, we finally realized the MTR function, and we did the functional test.Then, we studied the application of saving network resources with MTR. The main idea is as follows:By using the base network's minimum spanning tree (MST) as a MT to transfer the entire network traffic, the traffic can be concentrated and the links without the transmission of traffic can be closed off, thus saving resources. But in the process of concentrating traffic, it may lead to overloading of the link, then causing network congestion, so we can use several MTs to transmit traffic, not only to share the load and avoid network congestion, but also to close off many Links and save network resources. Through the research, we conclude as follows:(1) In this MT saving algorithm, the less the number of MT, the more concentrated traffic, the more links to be closed off; the more the number of MT, the more balanced traffic, the fewer links to be closed off. (2) Comparing with the shortest path tree algorithm, the MT energy-saving algorithm presented in this paper can turn off more links and play a better role in energy-saving.