Method for Calling Routing Algorithm, SDN Controller, and SDN-OAF
AssigneeZte Corporation
InventorGang LU
Life of this patent
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Abstract
The document discloses a method for invoking a routing algorithm, an SDN-OAF, and an SDN controller. The method includes pre-configuring a customized routing algorithm; an SDN controller receiving a path computation request from an application, invoking a corresponding customized routing algorithm according to information about the customized routing algorithm carried in the path computation request to compute a service path.
Claims19
A method for invoking a routing algorithm, comprising:
- pre-configuring a customized routing algorithm, and further comprising:
- a software defined network, SDN, controller receiving a path computation request from an application, APP;
- the SDN controller invoking a corresponding customized routing algorithm according to information about the customized routing algorithm carried in the path computation request to compute a service path.
(canceled)
A software defined network, SDN, controller comprising an adaptation module, a downloading module, and an invoking module;
- wherein,
- the adaptation module is configured to receive a path computation request and determine whether the path computation request carries a URL address of a customized routing algorithm;
- and transmit a first notification to the invoking module when the URL address of the customized routing algorithm is not carried;
- and output the URL address of the customized routing algorithm to the downloading module when the URL address of the customized routing algorithm is carried;
- the downloading module is configured to download a library file corresponding to the customized routing algorithm from an SDN Open Algorithm Function, SDN-OAF, according to the received URL address of the customized routing algorithm, load the library file corresponding to the customized routing algorithm, and output a second notification to the invoking module;
- the invoking module is configured to invoke a preset default routing algorithm to compute a service path when receiving the first notification;
- and invoke a customized routing algorithm function which is downloaded by using a universal invoking interface for a routing algorithm, and perform computation of the service path this time when receiving the second notification.
A software defined network Open Algorithm Function, SDN-OAF, comprising a query module, a download processing module, and a customized routing algorithm storage module storing a pre-configured customized routing algorithm;
- wherein,
- the query module is configured to receive a query request from an APP, decide a customized routing algorithm according to a requirement for current service establishment, and select the customized routing algorithm from the customized routing algorithm storage module, and return a URL address of the selected customized routing algorithm as information about the customized routing algorithm to the APP;
- the download processing module is configured to receive a download request from an SDN controller, and acquire a corresponding library file from the customized routing algorithm storage module according to the URL address of the customized routing algorithm carried in the download request and return the corresponding library file to the SDN controller.
Dependencies are inferred from the claim text.