Data forwarding to server via virtual network card or to external network via network interface, based on fusion descriptor

摘要

A data forwarding device includes server interfaces virtual network cards, a fusion switch and a network interface. A server interface obtains a data frame sent by a virtual network card driver running on a server corresponding to the server interface and obtains a first fusion descriptor, and sends the first fusion descriptor and the data frame to a virtual network card unit that corresponds to the virtual network card driver. The first fusion descriptor includes a type of the descriptor and a length of the data frame. The virtual network card processes the data frame according to the first fusion descriptor, and sends the data frame to the fusion switch. The fusion switch sends the data frame to a corresponding server via a virtual network card, or sends the data frame to an external network via a network interface.