Design And Implementation Of Network System Of Bank Overseas Data Center

With the rapid development of banking business globalization and informatization,more and more banks begin to pay more attention to overseas markets.Most domestic banks often take local computer rooms to deploy simple network systems and servers for maintenance and operation at present due to the reason that their overseas branches are located at different time zones.Only the processed accounting data and office data are exchanged between the overseas branches and domestic data centers through the wan.These business systems are relatively independent with high costs of maintenance and operation and their disaster tolerance is weak and lack of extensibility.The primary problem that constructing the network system of bank overseas data center is to have a mature and stable network framework of data center.This thesis confirms an appropriate network structure model for bank overseas data center by comparing the characteristics of different network structures.Secondly,the maintenance and operation time window problem of overseas business servers needs to be solved and the maintenance must be done at off-peak time to reduce the impact on the normal business.It is decided that the network access area is partitioned managed through the analysis of the time zone of overseas branches.Last but not the least,the problems of network routing communication with existing data center and logic isolation of planes A/B need to be done.This thesis effectively solves the problem through the reasonable plan of routing,rigorous routing redistribution and the application of VRF route-leaking technology.A series of comprehensive tests,including connectivity test,flow direction test and redundancy test,are carried out after the network system is implemented.Some test results are listed in the thesis,which can meet the design requirements.The implementation of the network system of bank overseas data center provides a safe and reliable guarantee for the centralized processing of overseas business data and the real-time interaction of office data.Through the research and design of the network system of bank overseas data center,design concept of layered network system has been further understood.Through analysis and comparison,characteristics of different routing protocols,especially the double point bidirectional route redistribution have been mastered.Through the rational selection of routing strategy,routing loops have been avoided.During the process of implementation and deployment,a variety of standardized wiring method have been learned.Familiar with the configuration of different network devices that provides a good foundation for maintenance and configuration on network devices.Some routing protocols on devices have not been effective in the process of configuration.Those problems are quickly found and fixed in time by consulting technical documentation and repeated investigation,which improves the capability of emergency handling.The design and construction of test environment also tests the understanding of the project design.Through the simulation of different test scenarios,the functions of the network system have been tested,which makes the results of this thesis further verified.