(EN) The invention discloses a data link detection method, device and system, a controller and gateways. The method comprises the steps that a UGW receives contextual information, sent by the SDN controller, of a GTP user plane; the UGW detects data links between the gateways according to the contextual information of the GTP user plane. By means of the data link detection method, device and system, the controller and the gateways, the problem that in the related technology, the logic of the user plane and the logic of a control plane are unclear during detection of the data links between GTP endpoints is solved, and the effect of improving the clarity of the logic of the user plane and the logic of the control plane is achieved.
(ZH) 本发明公开了一种数据链路的检测方法、装置、系统、控制器及网关，该方法包括UGW接收SDN控制器发送的GTP用户面的上下文信息；该UGW根据该GTP用户面的上下文信息检测网关之间的数据链路。本发明解决了相关技术中GTP端点之间数据链路检测存在的用户面的逻辑和控制面的逻辑不清楚的问题，具有提高用户面的逻辑和控制面的逻辑的清晰度的效果。