Fragmented packet traffic rate limiting method, DPU fragmented packet forwarding method, and electronic device

A Data Processing Unit (DPU) fragmented packet forwarding method, comprising:

• locally receiving a to-be-forwarded target fragmented packet at a DPU;
• and
• processing the received target fragmented packet according to a fragmented packet traffic rate limiting method, the fragmented packet traffic rate limiting method comprising:
• performing pre-coloring processing on a target fragmented packet based on a preset packet fragment coloring table such that the target fragmented packet is provided with a color mark, wherein the color mark comprises:
• a discarded color and a reserved color;
• performing traffic evaluation on the pre-colored target fragmented packet based on a color-aware token bucket algorithm to perform secondary coloring processing on the target fragmented packet;
• updating the packet fragment coloring table based on the color mark of the target fragmented packet subjected to secondary coloring;
• and
• when a current color mark of the target fragmented packet is the discarded color, performing rate limiting processing on the target fragmented packet, or when the current color mark of the target fragmented packet is the reserved color, performing forwarding processing on the target fragmented packet;
• wherein the packet fragment coloring table is configured to store a correspondence between keyword information of an original data packet to which a fragmented packet belongs and a color identifier, wherein:
• the keyword information of the fragmented packet comprises a unique identification and a local flow label;
• and
• the local flow label is preset based on an identifier of the original data packet.

An electronic device, comprising:

• a memory;
• a processor;
• and
• a computer program that is stored in the memory and runnable on the processor,
• wherein the processor is configured to implement, when executing the computer program, operations of:
• performing pre-coloring processing on a target fragmented packet based on a preset packet fragment coloring table such that the target fragmented packet is provided with a color mark, wherein the color mark comprises:
• a discarded color and a reserved color;
• performing traffic evaluation on the pre-colored target fragmented packet based on a color-aware token bucket algorithm to perform secondary coloring processing on the target fragmented packet;
• updating the packet fragment coloring table based on the color mark of the target fragmented packet subjected to secondary coloring;
• and
• when a current color mark of the target fragmented packet is the discarded color, performing rate limiting processing on the target fragmented packet, or when the current color mark of the target fragmented packet is the reserved color, performing forwarding processing on the target fragmented packet;
• wherein the processor is further configured to implement, when executing the computer program, operations of:
• before the performing the pre-coloring processing on the target fragmented packet based on the preset packet fragment coloring table, creating a packet fragment coloring table used to store a correspondence between an identifier of an original data packet to which a fragmented packet belongs and a color identifier, wherein the identifier of the original data packet comprises a source IP, a destination IP, a protocol type, and a unique identification.