Complex analytical models for evaluating the efficiency of transport networks IP / MPLS

In this paper conducted evaluating of the effectiveness of networking IP / MPLS, used as a base when deploying modern transport networks. The main requirements that apply to the technology backbone components are: high capacity, a slight delay value message and its scalability. The introduction of modern network technologies such as MPLS requires a sufficiently large logistical cost for its deployment and a prior assessment of the magnitude of the effect, depending on the area of its application. IP-networks only usage does not allow: to provide a flexible, rational distribution of information flows; performance of standardized values of service quality parameters for multimedia traffic; implement a fast and adaptive change of information transmission routes in the event of overloads in the network. In order to substantiate the choice of the proposed technology, the task of creating adequate models that allow quantifying the value of the gain over time in the processing of messages, depending on the size of the network and taking into account the peculiarities of the work of active network equipment with MPLS-switching and IP-routing. To evaluate the quality of message service in packet networks, the simulation model, boolean algebra and bit models were used. As a result, an analysis of the order and speed of packet service on the IP/MPLS networks was performed based on the simulation model of the corporate network segment. Also integrated analytical models were developed which take into account the peculiarities of network protocols and the operation of the active network equipment. The resulting integrated analytical models can be used to evaluate the effectiveness of IP/MPLS technologies depending on the dimension and network topology.