Ethernet header compression method and apparatus and Ethernet header decompression method and apparatus

An apparatus, applied for a compression end comprising:

• at least one processor;
• and
• a memory configured to store instructions that, when executed by the at least one processor, cause the apparatus to perform operations comprising:
• receiving, a first Ethernet frame, wherein an Ethernet header of the first Ethernet frame comprises a first to-be-compressed field;
• determining, first compression information of the Ethernet header of the first Ethernet frame based on one or more context entries and the first to-be-compressed field, wherein the one or more context entries each comprise:
• compression information including a context identifier (CID), a compressed-field value corresponding to the CID, and an availability indication indicating whether the compression information is used for compression, the first compression information including a first CID;
• and
• compressing, the Ethernet header of the first Ethernet frame based on the first compression information.

An apparatus, applied for a decompression end, comprising:

• at least one processor;
• and
• a memory configured to store instructions that, when executed by the at least one processor, cause the apparatus to perform operations comprising:
• receiving, a first Ethernet frame including a first context identifier (CID);
• determining, based on the first CID, a first correspondence from one or more context entries each comprising:
• compression information including a context identifier (CID), a compressed-field value corresponding to the CID, and an availability indication indicating whether the compression information is used for compression, wherein the first correspondence comprises first compression information with the first CID and a compressed-field value of a first-to-be decompressed field;
• and
• decompressing, an Ethernet header of the first Ethernet frame based on the first compression information and the compressed-field value of the first to-be-decompressed field in the first correspondence.