Abstract
The paper deals with the data transmission network of the Krasnoyarsk Railway, its structure, the topology of data transmission and the routing protocol, which supports its operation, as well as the specifics of data transmission networking. The combination of the railway automation applications and the data transmission network make up the automation systems, making it possible to improve performance, increase the freight traffic volume, and improve the quality of passenger service. The objective of this paper is to study the existing data transmission network of the Krasnoyarsk Railway and to develop ways of its modernization, in order to improve the reliability of the network and the automated systems that use this network. It was found that the IS-IS and OSPF routing protocols have many differences, primarily due to the fact that the IS-IS protocol does not use IP addresses as paths. On the one hand, it makes it possible to use the IS-IS protocol for the operation in IPv6 networks, whereas OSPF version 2 doesn’t provide this opportunity; therefore, OSPF version 3 was developed to solve this problem. However, on the other hand, in case of using IPv4, the routing configuration by means of the IS-IS protocol will imply the need to study a significant volume of information and use unusual methods of routing configuration
Highlights
The importance of the rail road is stipulated by large dimensions of the country, absence of all-year river traffic, and absence of river traffic from West to East
All automated systems consist of automation application and data transfer network, which is necessary for operation of the system
Improper operation of the data transfer network can lead to partial loss of the information and one cargo rail car will be reserved for various customers, or the seat in the passenger car will be occupied by two different passengers having in their possession the tickets bought using the Internet-service, because the information on one of them was not delivered to the united data base of JSC "Russian Railways" and the seat was not flagged as occupied one, so a ticket for the seat was sold second time
Summary
The importance of the rail road is stipulated by large dimensions of the country, absence of all-year river traffic, and absence of river traffic from West to East. Failure in the data transfer network operation can make absolutely senseless operation of the automation application in case, if there is no possibility to transfer the information, processed by automation application, on operation of the company servicing the rail road, station or directorate. Improper operation of the data transfer network can lead to partial loss of the information and one cargo rail car will be reserved for various customers, or the seat in the passenger car will be occupied by two different passengers having in their possession the tickets bought using the Internet-service, because the information on one of them was not delivered to the united data base of JSC "Russian Railways" and the seat was not flagged as occupied one, so a ticket for the seat was sold second time
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