Data transmission method and related apparatus

A data transmission method comprising:

• receiving, by a first receiving end (RE1), a transmission optimization enabling notification sent by a first transmitting end (TE1), wherein the transmission optimization enabling notification indicates the RE1 to skip sending, to the TE1, an acknowledgment packet used to acknowledge that a data packet of a first data stream is already received by a second receiving end (RE2), and the first data stream is sent by a second transmitting end (TE2) to the RE2;
• receiving, by the RE1, a data frame (Data1) that is in a first protocol format and that is sent by the TE1, wherein a data packet (Data2) in a second protocol format is encapsulated in the Data1, and the Data2 belongs to the first data stream;
• sending, by the RE1, the Data2 to the RE2;
• and
• in response to the RE1 receiving an acknowledgment packet Ack3 that is in the second protocol format and that is sent by the RE2, skipping sending, by the RE1, the Ack3 to the TE1 based on the transmission optimization enabling notification, wherein the Ack3 is used to acknowledge that the Data2 is already received by the RE2.

A data transmission apparatus, wherein the apparatus is located at a first transmitting end (TE1) and comprises:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions when executed by the processor instruct the apparatus to:
• in response to determining that a first data stream satisfies a transmission optimization enabling condition, send a transmission optimization enabling notification to a first receiving end (RE1), wherein the transmission optimization enabling notification indicates the RE1 to skip sending, to the TE1, an acknowledgment packet used to acknowledge that a data packet of the first data stream is already received by the RE2;
• receive a data packet (Data2) that is in a second protocol format and that is sent by the TE2, wherein the Data2 belongs to the first data stream;
• and receive an acknowledgment frame Ack1 that is in a first protocol format and that is sent by the RE1, wherein the Ack1 is used to acknowledge that a data frame (Data1) in the first protocol format is already received by the RE1;
• and
• send the Data1 to the RE1 when receiving the Data2, wherein the Data2 is encapsulated in the Data1;
• and when receiving the Ack1, construct an acknowledgment packet Ack2 in the second protocol format based on the Ack1 and send the Ack2 to the TE2, wherein the Ack2 is used to acknowledge that the Data2 is already received by the RE2.

A data transmission apparatus, wherein the apparatus is located at a first receiving end (RE1) and comprises:

• a processor;
• and
• a non-transitory computer-readable storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions when executed by the processor instruct the apparatus to:
• receive a transmission optimization enabling notification sent by a first transmitting end (TE1), wherein the transmission optimization enabling notification indicates the RE1 to skip sending, to the TE1, an acknowledgment packet used to acknowledge that a data packet of a first data stream is already received by a second receiving end (RE2), and the first data stream is sent by a second transmitting end (TE2) to the RE2;
• and receive a data frame (Data1) that is in a first protocol format and that is sent by the TE1, wherein a data packet (Data2) in a second protocol format is encapsulated in the Data1, and the Data2 belongs to the first data stream;
• send the Data2 to the RE2 when receiving the Data1;
• and
• when receiving an acknowledgment packet (Ack3) that is in the second protocol format and that is sent by the RE2, skip sending the Ack3 to the TE1 based on the transmission optimization enabling notification, wherein the Ack3 is used to acknowledge that the Data2 is already received by the RE2.