Abstract: A polarizing beam splitter and a preparation method and use thereof are provided. The polarizing beam splitter includes a diamond substrate, a broadband anti-reflection coating and a first metallized layer located on one side surface of the diamond substrate, a polarizing beam splitting coating located on another side surface of the diamond substrate, and a second metallized layer located on a side of the diamond substrate, where the first metallized layer is located on an edge of the one side surface of the diamond substrate. Diamond is adopted as the substrate material of the polarizing beam splitter. The diamond substrate can quickly conduct heat generated by laser irradiation on the layer and the substrate, thereby mitigating damage to the polarizing beam splitter caused by local temperature rise. The metallization treatment on the edge of the polarizing beam splitter providing a high-reliability and low-leakage vacuum sealing solution.

Abstract: A virtual network function (VNF) deployment method and apparatus is provided. The method comprises: obtaining a virtual network function descriptor (VNFD), where the VNFD includes input parameter information, input adaptation information, and VNF descriptor information; the input parameter information includes N pieces of management unit information, each piece of management unit information is used to describe an attribute of a management unit; the input adaptation information is used to indicate a mapping relationship between the management unit and a logical management unit; mapping management units corresponding to the N management unit identifiers to the N logical management units based on the input adaptation information; and creating the VNF on the N logical management units based on the VNF descriptor information. The embodiments of this application are applicable to VNF deployment process.

Abstract: A virtual network function (VNF) deployment method and apparatus is provided. The method comprises: obtaining a virtual network function descriptor (VNFD), where the VNFD includes input parameter information, input adaptation information, and VNF descriptor information; the input parameter information includes N pieces of management unit information, each piece of management unit information is used to describe an attribute of a management unit; the input adaptation information is used to indicate a mapping relationship between the management unit and a logical management unit; mapping management units corresponding to the N management unit identifiers to the N logical management units based on the input adaptation information; and creating the VNF on the N logical management units based on the VNF descriptor information. The embodiments of this application are applicable to VNF deployment process.

Abstract: Embodiments of the present invention provide a method, a device, and a system for realizing disaster tolerance backup. The method includes the following steps: a device with an active-standby function determines a current state of the device with the active-standby function, after it is determined that the current state is an active state, the device with the active-standby function issues reachable route information to a connected routing device, where the device with the active-standby function and a device of which a current state is a standby state have a same IP address, the reachable route information includes route information relevant to the IP address, so that the IP address is reachable, and the device with the active-standby function and the device of which the current state is the standby state are backup devices for each other. The present invention can realize remote disaster tolerance backup and avoid service interruption.

Abstract: Embodiments of the present invention provide a method, a device, and a system for realizing disaster tolerance backup. The method includes the following steps: a device with an active-standby function determines a current state of the device with the active-standby function, after it is determined that the current state is an active state, the device with the active-standby function issues reachable route information to a connected routing device, where the device with the active-standby function and a device of which a current state is a standby state have a same IP address, the reachable route information includes route information relevant to the IP address, so that the IP address is reachable, and the device with the active-standby function and the device of which the current state is the standby state are backup devices for each other. The present invention can realize remote disaster tolerance backup and avoid service interruption.