An inter integrated circuit (I.sup.2C)-based communication method incudes when an I.sup.2C signal is encapsulated into a data packet for transparent transmission, an I.sup.2C status is indicated by a first field in a packet header of the data packet. The data packet may have no load part, or the data packet has a load part but the load part is used to carry a slave address, a read/write flag, or I.sup.2C data. Because the I.sup.2C status is indicated in the packet header of the data packet, the I.sup.2C status may be encapsulated in a same data packet together with the slave address, the read/write flag, or the I.sup.2C data. In other words, the I.sup.2C status may not need to occupy one data packet separately.

An inter integrated circuit (I.sup.2C)-based communication method incudes when an I.sup.2C signal is encapsulated into a data packet for transparent transmission, an I.sup.2C status is indicated by a first field in a packet header of the data packet. The data packet may have no load part, or the data packet has a load part but the load part is used to carry a slave address, a read/write flag, or I.sup.2C data. Because the I.sup.2C status is indicated in the packet header of the data packet, the I.sup.2C status may be encapsulated in a same data packet together with the slave address, the read/write flag, or the I.sup.2C data. In other words, the I.sup.2C status may not need to occupy one data packet separately.

One example may include a process that includes establishing a transmission control protocol (TCP) connection between a client device and a server to form a virtual private network (VPN), permitting communication between the client device and the server on the TCP connection, monitoring, via the VPN server, communication over the TCP connection to identify one or more connection parameters, establishing a second connection between the client device and the server when the one or more connection parameters indicate a slowing of the TCP connection below a threshold and below a previously measured connection rate, receiving, via the TCP connection, application data used by one of the applications operating on the client device, and receiving, via the second connection, application data used by another application of the applications.

A method for application-specific traffic handling is provided. A service data unit (SDU) can be received at a radio protocol layer in a radio access network (RAN) protocol stack. The SDU carries application data that is generated from an application layer and passes through multiple protocol layers existing between the application layer and the radio protocol layer. At the radio protocol layer, the SDU is inspected to obtain characteristic information from one or more protocol headers corresponding to one or more protocol layers among the multiple protocol layers. The characteristic information indicates characteristics of the application data. At the radio protocol layer, the SDU is classified into one of multiple classes based on the characteristic information obtained from the one or more protocol headers. At the radio protocol layer, the SDU is processed according to which one of the multiple classes the SDU is classified into.

A method for application-specific traffic handling is provided. A service data unit (SDU) can be received at a radio protocol layer in a radio access network (RAN) protocol stack. The SDU carries application data that is generated from an application layer and passes through multiple protocol layers existing between the application layer and the radio protocol layer. At the radio protocol layer, the SDU is inspected to obtain characteristic information from one or more protocol headers corresponding to one or more protocol layers among the multiple protocol layers. The characteristic information indicates characteristics of the application data. At the radio protocol layer, the SDU is classified into one of multiple classes based on the characteristic information obtained from the one or more protocol headers. At the radio protocol layer, the SDU is processed according to which one of the multiple classes the SDU is classified into.

A method for monitoring message packets that are exchanged between at least two control units. The message packets are concatenated in a data stream and each have an identifier, a payload, and a length specification of the payload described by a data item of predefined word size. The at least two control units are connected by a distributor. The distributor is connected by a first distributor port to a first of the at least two control units, is connected by a second distributor port to a second of the at least two control units, and is connected by a third distributor port to a computer system. The data stream flows through the first and distributor port for communication between the first node and the second node. The computer system has a memory, and information on the respective identifiers of the message packets is stored in the memory.

A method for monitoring message packets that are exchanged between at least two control units. The message packets are concatenated in a data stream and each have an identifier, a payload, and a length specification of the payload described by a data item of predefined word size. The at least two control units are connected by a distributor. The distributor is connected by a first distributor port to a first of the at least two control units, is connected by a second distributor port to a second of the at least two control units, and is connected by a third distributor port to a computer system. The data stream flows through the first and distributor port for communication between the first node and the second node. The computer system has a memory, and information on the respective identifiers of the message packets is stored in the memory.

A wireless communication method includes the following operations: adding a data message of a vendor of a first wireless communication device to a frame of a packet through a physical layer; transmitting, by the first wireless communication device, the packet to a second wireless communication device; analyzing, by the second wireless communication device, the packet to obtain the data message; determining, by the second wireless communication device, whether both of the vendor of the first wireless communication device and a vendor of the second wireless communication device are a predetermined vendor according to the data message; if both of the vendor of the first wireless communication device and the vendor of the second wireless communication device are the predetermined vendor, performing, by the second wireless communication device, a specific communication mode of the predetermined vendor to connect to the first wireless communication device.

A wireless communication method includes the following operations: adding a data message of a vendor of a first wireless communication device to a frame of a packet through a physical layer; transmitting, by the first wireless communication device, the packet to a second wireless communication device; analyzing, by the second wireless communication device, the packet to obtain the data message; determining, by the second wireless communication device, whether both of the vendor of the first wireless communication device and a vendor of the second wireless communication device are a predetermined vendor according to the data message; if both of the vendor of the first wireless communication device and the vendor of the second wireless communication device are the predetermined vendor, performing, by the second wireless communication device, a specific communication mode of the predetermined vendor to connect to the first wireless communication device.

Methods are provided to categorize and filter node metadata by adding a priority field to the node metadata, obtained as part of in-band network telemetry data collection. The methods involve obtaining, by a first network device, a packet having a header and a payload and adding, by the first network device, to the header of the packet, metadata which includes first telemetry data and a metadata priority level that indicates a priority of the first telemetry data added to the header of the packet by the first network device. The methods further involve providing the packet to a second network device in a path of a network.