One embodiment provides a system that facilitates collection of historical network information. During operation, the system monitors a plurality of packets which include outgoing interests and corresponding incoming content objects, wherein a name for an interest is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level. The system collects historical information associated with the packets based on name prefixes of the packets, wherein a name prefix includes one or more contiguous name components. In response to receiving a query from a requesting entity for the historical information, the system transmits the historical information, thereby facilitating the requesting entity to use the historical information to increase network efficiency.

One embodiment provides a system that facilitates querying of historical network information. During operation, the system generates a query for historical information associated with interest and content object packets, wherein a name for an interest is a hierarchically structured variable length identifier that includes contiguous name components ordered from a most general level to a most specific level, wherein the query is based on a name prefix that includes one or more contiguous name components. The system transmits the query to a responding entity. In response to receiving the historical information from the responding entity, the system performs an operation that increases network efficiency based on the historical information, thereby facilitating a protocol for querying the historical information to increase network efficiency.

Various embodiments improve the operation of computers by providing methods of transmitting data with low latency and high bandwidth. Data may be transmitted in a packet composed of data flits, the data flits having at least two different formats configured to implement different communication protocols. In some embodiments, a given flit may be transmitted using two different modulation methods, with a first part of the flit transmitted using a first modulation method, such as a binary method, and a second part of the flit using a higher-order modulation method.

A near end network optimizer receives, from a client device, a request for a network resource. Responsive to determining that a version of the network resource is stored in the near end network optimizer, a request for the network resource is transmitted to a far end network optimizer along with a version identifier that identifies that version. The near end network optimizer receives, from the far end network optimizer, a response that includes a differences file that specifies the difference(s) between the version of the network resource stored in the near end network optimizer with a most current version of the network resource. The response does not include the entire network resource. The near end network optimizer applies the specified difference(s) to the version that it has stored to generate an updated version of the network resource, and transmits the updated version of the network resource to the client device.

In one embodiment, a device in a network receives a set of known user identifiers used in the network. The device receives web traffic log data regarding web traffic in the network. The web traffic log data includes header information captured from the web traffic and a plurality of client addresses associated with the web traffic. The device detects a particular one of the set of known user identifiers in the header information captured from the web traffic associated with a particular one of the plurality of client addresses. The device makes an association between the particular detected user identifier and the particular client address.

A data packet structure conveys data of service data units (SDU) using protocol data units (PDU). The data packet structure includes a data packet payload having at least one protocol data unit (PDU). A protocol data unit (PDU) includes a service data unit (SDU) or a fragment of a service data unit and a data packet header including an indicator indicating whether or not the data packet payload begins with a protocol data unit (PDU) being a fragment of a service data unit and whether or not the data packet payload ends with a protocol data unit (PDU) being a fragment of a service data unit.

In a method for generating a physical layer (PHY) data unit for transmission via a communication channel, the PHY data unit is generated according to a first PHY format when the PHY data unit is to be transmitted in a regular mode, wherein the first PHY format corresponds to a first bandwidth. The PHY data unit is generated according to a second PHY format when the PHY data unit is to be transmitted in an extended range mode, wherein the second PHY format corresponds to a second bandwidth. A preamble of the PHY data unit is modulated such that a receiving device can auto-detect whether the PHY data unit was transmitted at the first bandwidth or the second bandwidth.

A computer device and a method for reading or writing data by a computer device are provided. In the computer device, a central processing unit (CPU) is connected to a cloud controller using a double data rate (DDR) interface. Because the DDR interface has a high data transmission rate, interruption of CPU can be avoided. In addition, the CPU converts a read or write operation request into a control command and writes the control command into a transmission queue in the cloud controller. Because the cloud controller performs a read operation or a write operation on a network device according to operation information in the control command, after writing the control command into the transmission queue, the CPU does not need to wait for an operation performed by the cloud controller and can continue to perform other processes.

A mechanism is provided for correct port identification in a network host connection. A registry is created for a network host of a set of ports on the network host and services listening on each port of the set of ports, the registry including registered information capable of identifying each service provided by each port. The registered information is provided in a client connection request to the service. Client information is received from a client requiring identification of a correct port for connection to a service. The registry is searched for a match for the client information with the registered information registered at the registry for a service listening on one or more ports. The client is provided with details of the one or more ports.

Embodiments of the present invention relate to the field of communications, and provide a data transmission method, apparatus and system. The method includes: detecting whether data transmitted in a received GTP-U data packet is data of a predetermined type; if a result of the detection is that data transmitted in the GTP-U data packet is data of a predetermined type, decapsulating the GTP-U data packet, to obtain the data of the predetermined type and a destination address of the data of the predetermined type; and sending the data of the predetermined type and the destination address to a message gateway, so that the message gateway forwards the data of the predetermined type according to the destination address. A gateway includes: a detection module, a decapsulation module, and a sending module. A message gateway includes: a receiving module and a forwarding module.