Aspects of the disclosed technology address limitations relating to packet replication for multi-destination traffic, by providing methods for performing hardware-based replication in network infrastructure devices, such as switches. In some aspects, application specific integrated circuits (ASICs) resident in physical devices can be used to perform packet replication. Depending on implementation, a hardware-based replication process can include steps for receiving a first packet that includes a first outer header containing first address information, receiving a second packet including a second outer header containing a hardware replication flag, forwarding the first packet to all virtual tunnel endpoints (VTEPs) connected with the TOR switch, and performing hardware replication for the second packet based on the hardware replication flag to generate one or more unicast packets. Systems and machine readable media are also provided.

Methods, systems, and devices for determining a subset of user devices from among a complete set of user devices based on a set of received information, i.e., attributes associated with a photograph or user device that transmitted the photograph and attributes, where the disposition of the information may be used to determine the subset and then perform facial recognition on the subset of user associated photographs in order to accurately identify each user or users present in the photograph.

Methods and apparatus for efficient data transfer within a user space network stack. Unlike prior art monolithic networking stacks, the exemplary networking stack architecture described hereinafter includes various components that span multiple domains (both in-kernel, and non-kernel). For example, unlike traditional “socket” based communication, disclosed embodiments can transfer data directly between the kernel and user space domains. Direct transfer reduces the per-byte and per-packet costs relative to socket based communication. A user space networking stack is disclosed that enables extensible, cross-platform-capable, user space control of the networking protocol stack functionality. The user space networking stack facilitates tighter integration between the protocol layers (including TLS) and the application or daemon. Exemplary systems can support multiple networking protocol stack instances (including an in-kernel traditional network stack).

A data transmission method and an apparatus are provided. The method includes: when determining that a first data stream satisfies a transmission optimization enabling condition, a first transmitting end TE1 sends a transmission optimization enabling notification to a first receiving end RE1, where the transmission optimization enabling notification is used to indicate 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. The TE1 receives a data packet Data2 in a second protocol format from the TE2. The TE1 sends a data packet Data1 in a first protocol format to the RE1. The TE1 receives an acknowledgment frame Ack1 in the first protocol format from the RE1. The TE1 constructs an acknowledgment packet Ack2 in the second protocol format based on the Ack1, and sends it to the TE2.

An image processing method includes: receiving request information used for transmitting target data and sent by the external module based on a pre-established communication connection, in which the communication connection is established based on a hardware specification of the external module; determining a transmission parameter of the target data based on the request information; and receiving the target data transmitted by the external module based on the transmission parameter.

This application provides a data transmission method and a apparatus. The method includes: when determining that a first data stream satisfies a transmission optimization enabling condition, a first transmitting end TE1 sends a transmission optimization enabling notification to a first receiving end RE1, where the transmission optimization enabling notification is used to indicate 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. The TE1 receives a data packet Data2 in a second protocol format from the TE2. The TE1 sends a data packet Data1 in a first protocol format to the RE1. The TE1 receives an acknowledgment frame Ack1 in the first protocol format from the RE1. The TE1 constructs an acknowledgment packet Ack2 in the second protocol format based on the Ack1, and sends it to the TE2.

A control and data transfer system for supporting different communication protocols, in which the system includes a control device that can store a plurality of different communication protocols. The control device is adapted for loading and executing at least one of the stored communication protocols. Further, a first adapter module is connectable to the control device. The first adapter module includes an identification device which enables the control device to identify the first communication protocol, and a communications interface for connecting, to the first adapter module, at least one first device that is configured for communication according to one of the stored communication protocols. The control and evaluation device is configured to use the identification device for identifying the first communication protocol when the first adapter module is connected to the control device, and to load and execute the identified first communication protocol from the storage device.

A packet processing technique can include receiving a packet, and parsing the packet based on a protocol field to generate a parse result vector. The parse result vector is used to select between forwarding the packet to a virtual machine executing on a host processing integrated circuit, forwarding the packet to a physical media access controller, multicasting the packet to multiple virtual machines executing on the host processing integrated circuit, and sending the packet to a hypervisor.

A data transmission method in FlexE includes: obtaining multiple data blocks sent by L FlexE clients, where L is greater than or equal to 1; and sending a data frame including the multiple data blocks to a physical-layer device, where a transmission rate of the data frame is N*100 Gbit/s, the data frame includes T data block groups, each of the T data block groups includes M continuous data block subgroups, each of the M continuous data block subgroups includes R*N continuous data blocks, the data frame further includes T overhead block groups, a t.sup.th overhead block group includes N continuous overhead blocks. According to the method, each data block subgroup in a data frame can include R*N data blocks, and each overhead block group can include N overhead blocks, and a data transmission rate can be adjusted flexibly.

A method for data processing of frame receiving of an interconnection protocol and a storage device, for use in a first device linkable to a second device according to the interconnection protocol. The method includes: in processing of frames originating from the second device and received by the first device: while sending data contained in a first frame to a network layer from a data link layer, pre-fetching symbols of a second frame; and after the data contained in the first frame are sent to the network layer and the symbols of the second frame are pre-fetched, sending data contained in the second frame to the network layer. Upon receipt of back-to-back frames, the efficiency of the frame receiving at the data link layer is enhanced.