Huawei Technologies Co., Limited

Pengfei Ma

Lei Li

Cheng Chen

Guangxue Yu

An example apparatus includes at least one processor and at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor to: obtain map data at a current moment, where the map data includes a first road area at the current moment, the special road condition is located in the first road area, the first road area is obtained based on a road condition model and a vehicle parameter within a preset time period before the current moment, and the road condition model represents a correspondence between a feature of the vehicle parameter and the special road condition; and determine, based on a planned route of a vehicle, that a second road area exists in the planned route of the vehicle, where the second road area is in the first road area.

Method and apparatus for recognizing special road condition, electronic device, and storage medium

Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting a forwarding parameter. The method includes: obtaining, by a controller, an extended forwarding module description, where the extended forwarding module description includes a first format encoding rule, the first format encoding rule is used to indicate a type of a first forwarding parameter and a location of the first forwarding parameter in a first field, and the first field is a field in a flow entry of an OpenFlow protocol; and filling, by the controller, the first forwarding parameter in the first field according to the first format encoding rule, and sending, to a forwarding device by using the OpenFlow protocol, the flow entry that carries the first field, so that the forwarding device parses the first field in the flow entry according to the first format encoding rule, to obtain the first forwarding parameter.

Method and device for transmitting forwarding parameter

The application provide an information sending method which includes: sending, by a controller, a forwarding indication message to a forwarder, where: the forwarding indication message includes at least two routing correspondences and a tunnel correspondence, the at least two routing correspondences include a first routing correspondence and a second routing correspondence, the first routing correspondence is mapping of a first route to a next hop identifier, the second routing correspondence is mapping of a second route to the next hop identifier, and the first route is different from the second route; and the tunnel correspondence is a correspondence of the next hop identifier to a public network tunnel. The embodiments of the application resolve a problem that a delivering form of a forwarding indication message that is from a control plane to a forwarding plane is not explicitly stipulated in an OpenFlow standard of an SDN.

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Shenzhen, China

Pengfei Ma