Abstract: Disclosed are an installation device for air gap arrester and installation method thereof. The installation device includes a handheld pole, a wire clamping mechanism provided at the bottom end of the handheld pole for clamping a split wire, a tray provided on the handheld pole for lifting the arrester, an insulating rope provided on the tray, a fixing rope provided on the handheld pole for temporarily fixing the arrester, and a scale provided on the handheld pole for measuring the distance from the bottom end of the arrester to the bottom end of the handheld pole. The installation device for air gap arrester and installation method thereof have high installation efficiency.

Abstract: The present disclosure provides a path selection method and apparatus. The method comprises: receiving a traffic scheduling request, wherein the traffic scheduling request comprises a requirement for path selection, a source node, and a destination node; determining, for each dedicated line cloud comprising both a source virtual node connected with the source node and a destination virtual node connected with the destination node, a dedicated line corresponding to the dedicated line cloud as a traffic forwarding path when static attribute of a link between the source node and the respective source virtual node and a link between the destination node and the respective destination virtual node, and/or a dynamic attribute of a link between the respective source virtual node and the respective destination virtual node satisfy the requirement for path selection. The present disclosure can implement path selection based on bandwidth and quality in a point-to-multipoint network by a controller.

Abstract: A Software Defined Network (SDN) controller determines a plurality of paths for transmitting a data stream from a first network device to a second network device. The SDN controller assigns to each of the plurality of paths a path identifier, where the path identifier is uniquely corresponding to the path and the specified service. The SDN controller delivers forwarding information to a network device other than the second network device on the path. The forwarding information is configured to instruct forwarding a data stream carrying the path identifier of the path to a next hop on the path of a network device receiving the forwarding information. The SDN controller selects a path from the plurality of paths and transmits a path identifier of the selected path to the first network device. The first network device adds the path identifier of the selected path to the data stream of the specified service.

Abstract: Disclosed are an installation device for air gap arrester and installation method thereof. The installation device includes a handheld pole, a wire clamping mechanism provided at the bottom end of the handheld pole for clamping a split wire, a tray provided on the handheld pole for lifting the arrester, an insulating rope provided on the tray, a fixing rope provided on the handheld pole for temporarily fixing the arrester, and a scale provided on the handheld pole for measuring the distance from the bottom end of the arrester to the bottom end of the handheld pole. The installation device for air gap arrester and installation method thereof have high installation efficiency.

Abstract: The present disclosure provides a path selection method and apparatus. The method comprises: receiving a traffic scheduling request, wherein the traffic scheduling request comprises a requirement for path selection, a source node, and a destination node; determining, for each dedicated line cloud comprising both a source virtual node connected with the source node and a destination virtual node connected with the destination node, a dedicated line corresponding to the dedicated line cloud as a traffic forwarding path when static attribute of a link between the source node and the respective source virtual node and a link between the destination node and the respective destination virtual node, and/or a dynamic attribute of a link between the respective source virtual node and the respective destination virtual node satisfy the requirement for path selection. The present disclosure can implement path selection based on bandwidth and quality in a point-to-multipoint network by a controller.

Abstract: A Software Defined Network (SDN) controller determines a plurality of paths for transmitting a data stream from a first network device to a second network device. The SDN controller assigns to each of the plurality of paths a path identifier, where the path identifier is uniquely corresponding to the path and the specified service. The SDN controller delivers forwarding information to a network device other than the second network device on the path. The forwarding information is configured to instruct forwarding a data stream carrying the path identifier of the path to a next hop on the path of a network device receiving the forwarding information. The SDN controller selects a path from the plurality of paths and transmits a path identifier of the selected path to the first network device. The first network device adds the path identifier of the selected path to the data stream of the specified service.