Keywords:: Sticky wrap, sticky wrap solution.
TCP packet sticking refers to the phenomenon that several small data packets sent by the sender in succession are combined into large data blocks by the receiver or multiple small data packets are glued together to receive during data transmission.
TCP is a stream-oriented transport protocol in which data is split into TCP segments during transmission and reassembled at the receiver. Due to the streaming nature of TCP, multiple small packets sent by the sender in succession may be received at the receiver at once, resulting in sticky packets.
The main reasons for TCP sticking are as follows:
The packets sent continuously by the sender are small and may not be large enough to fill the size of a TCP data segment, resulting in multiple packets being sent together in combination. Inconsistencies between the rate at which the sender sends data and the rate at which the receiver processes the data can cause multiple packets to reach the receiver together during transmission. TCP sticky packets may cause data parsing errors or inaccurate data processing, affecting the correctness and performance of communication. To solve the TCP sticky problem, you can use the following methods:
Use fixed-length packets: The sender adds a fixed-length header to the packet before sending the data, and the receiver splits the packet by reading the fixed-length data. Separating with special characters or tag symbols: The sender adds specific characters or tag symbols between packets as separators, and the receiver splits packets by identifying the separators. Use the message length field: The sender adds a field to the packet that represents the length of the message, and the receiver reads the message length field first, and then reads the data for that length based on the length. By adopting the above methods, you can effectively solve the problem of TCP sticky packets and ensure the correctness and integrity of the data during transmission.