Method for confirming mapping relation between cross-domain service domain interior domains

Abstract

The invention relates to a method for assuring the projection relationship between internal fields of span service field. Wherein, said method comprises: the inlet point of field receives the path information that loaded service level consultation SLA projection target information; combined with said SLA information and the SLA consultation strategy data of each node, assuring the inter-field SLA projection relationship of span service. The invention distributes different strategies on different fields, to improve the stability of service, and reduce the service cost.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method for determining a mapping relationship between domains in a cross-domain business domain. Background technique [0002] The traditional network topology is a single-domain mode. All network elements in the domain save topology information of the entire network. Changes in topology information will also be flooded to all nodes in the domain. The network management performs unified management of all nodes in the domain. However, with the large-scale network, the existing single-domain topology has shown its bottleneck, that is, the amount of information flooded when the fiber is cut or the resource changes is huge, which has a great impact on the network. The limitation of maintenance and management is inconvenient, and it is difficult for devices of different device manufacturers to complete the interconnection and intercommunication in the topology of sing...

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Problems solved by technology

[0007] This method is simple to implement, but there are the following problems: because the network scale is getting larger and larger, the topology status and external environment of each domain may be different. The probability of service interruption is relatively high, and building only one intra-domain tunnel with a low protection level will cause a relatively high probability of service interruption, and once an abnormality occurs, the maintenance period will be longer and the cost will be higher due to factors such as harsh external environment; on the contrary, In a domain with abundant link resources and good external environment, building an intra-domain tunnel with a high protection level will cause low resource utilization and prevent other users from obtaining sufficient resources. It causes great inconvenience to the operator's management and maintenance, and increases operating costs

Moreover, because the above scheme does not formulate different mapping strategies according to the link resources of each domain and the characteristics of the external environment, problems such as hidden dangers of business stability and waste of resources are caused.

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