Method for sending virtual extensible local area network packet, computer device, and computer readable medium

A computer device, comprising a central processing unit, a network adapter, and a virtual machine, wherein the network adapter comprises a network adapter processor, and the network adapter processor is configured to:

• receive a first packet sent by the virtual machine;
• determine whether the network adapter stores encapsulation information required for performing virtual extensible local area network (VxLAN) encapsulation on the first packet;
• and in response to the network adapter not storing the encapsulation information required for performing VxLAN encapsulation on the first packet, the network adapter processor is further configured to send an obtaining request to the central processing unit, wherein the encapsulation information comprises an encapsulation Media Access Control (MAC) address and an encapsulation Internet Protocol (IP) address, the encapsulation MAC address is a MAC address of a next-hop device passed through when the first packet is sent, and the encapsulation IP address is an IP address of a virtual extensible local area network tunnel end point (VTEP) on a destination end of the first packet;
• receive and store the encapsulation MAC address and the encapsulation IP address that are sent by the central processing unit and that are required for performing VxLAN encapsulation on the first packet;
• and
• send a packet obtained after VxLAN encapsulation is performed on the first packet.

A non-transitory computer readable medium, comprising computer readable instructions that when executed by a processor in a computer device, configure the processor to:

• receive a first packet sent by a virtual machine to a network adapter;
• determine whether the network adapter stores encapsulation information required for performing virtual extensible local area network (VxLAN) encapsulation on the first packet, wherein the encapsulation information comprises an encapsulation Media Access Control (MAC) address and an encapsulation Internet Protocol (IP) address, the encapsulation MAC address is a MAC address of a next-hop device passed through when the first packet is sent, and the encapsulation IP address is an IP address of a virtual extensible local area network tunnel end point (VTEP) on a destination end of the first packet;
• and
• in response to the network adapter not storing the encapsulation information required for performing VxLAN encapsulation on the first packet, send an obtaining request to a central processing unit in the computer device, obtain the encapsulation information from the central processing unit and store the encapsulation information, and send a packet obtained after VxLAN encapsulation is performed on the first packet.