Network slicing method and system

A network slicing system comprising:

• a processor and a memory, wherein the memory stores instructions and the processor is configured to execute the instructions to perform the following operations:
• obtain metadata information of multiple traffic flows based on an analysis of characteristics of respective packets of the multiple traffic flows, wherein the metadata information of the traffic flows is used to indicate flow features of the traffic flows;
• determine a classification policy based on the metadata information of the multiple traffic flows, wherein the classification policy comprises a classification criterion of at least one traffic flow type, the classification criterion comprises a range of one or more of the characteristics of the respective packets of the multiple traffic flows of the traffic flow type, and the classification policy is determined based on a match be, and the classification policy is determined based on a match between the metadata information of the multiple traffic flows and the classification criterion of the classification policy;
• determine a network slicing policy according to the classification policy, wherein the network slicing policy is used to divide a network into at least one network slice, the network slicing policy comprises a mapping relationship between a traffic flow type and a network slice and a slice weight of the network slice, and the slice weight indicates a ratio of a resource of the network slice to a resource of the network, and the resource comprises a computing resource of a communication network;
• determine a resource node policy according to the network slicing policy, wherein the resource node policy comprises a mapping relationship between at least one resource node in the network and the at least one network slice and a resource weight of each resource node, and the resource weight of the resource node indicates a ratio of a resource of each of network slices corresponding to the resource node to a resource of the resource node;
• receive a request message from a terminal device, wherein the request message includes 5-tuple information of a packet in a to-be-transmitted traffic flow prior to transmission of the to-be-transmitted traffic flow by the terminal device, and the request message is used to request network slice information based on the 5-tuple information of the packet in the to-be-transmitted traffic flow;
• determine the network slice information according to the 5-tuple information of the packet in the to-be-transmitted traffic flow and the network slicing policy;
• and
• transmit, to the terminal device, a response message, wherein the response message comprises the network slice information including a network slice identifier of the at least one network slice.

A non-transitory computer-readable medium having instructions stored therein, which when executed by a processor, cause the processor to perform operations, the operations comprising:

• obtaining metadata information of each of multiple traffic flows based on an analysis of characteristics of respective packets of the multiple traffic flows, wherein the metadata information of the traffic flow is used to indicate a flow feature of the traffic flow;
• determining a classification policy based on the metadata information of the multiple traffic flows, wherein the classification policy comprises a classification criterion of at least one traffic flow type, the classification criterion comprises a range of one or more of the characteristics of the respective packets of the multiple traffic flows of the traffic flow type, and the classification policy is determined based on a match between the metadata information of the multiple traffic flows and the classification criterion of the classification policy;
• determining a network slicing policy according to the classification policy, wherein the network slicing policy is used to divide a network into at least one network slice, the network slicing policy comprises a mapping relationship between a traffic flow type and a network slice and a slice weight of the network slice, and the slice weight indicates a ratio of a resource of the network slice to a resource of the network, and the resource comprises a computing resource of a communication network;
• determining a resource node policy according to the network slicing policy, wherein the resource node policy comprises a mapping relationship between at least one resource node in the network and the at least one network slice and a resource weight of each resource node, and the resource weight of the resource node indicates a ratio of a resource of each of network slices corresponding to the resource node to a resource of the resource node;
• receiving a request message from a terminal device, wherein the request message includes 5-tuple information of a packet in a to-be-transmitted traffic flow prior to transmission of the to-be-transmitted traffic flow by the terminal device, and the request message is used to request network slice information based on the 5-tuple information of the packet in the to-be-transmitted traffic flow;
• determining the network slice information according to the 5-tuple information of the packet in the to-be-transmitted traffic flow and the network slicing policy;
• and
• transmitting, to the terminal device, a response message, wherein the response message comprises the network slice information including a network slice identifier of the at least one network slice.