In one aspect, a computerized system useful for implementing a cloud-based multipath routing protocol to an Internet endpoint includes an edge device that provides an entry point into an entity's core network. The entity's core network includes a set of resources to be reliably accessed. The computerized system includes a cloud-edge device instantiated in a public-cloud computing platform. The cloud-edge device joins a same virtual routing and forwarding table as the edge device. The cloud-edge device receives a set of sources and destinations of network traffic that are permitted to access the edge device and the set of resources.

A packet switch device includes an input port, a loop-back port, a storage module, and a switch engine. The input port receives a packet. The storage module stores packet flow tables. Each packet flow table includes at least one flow entry and action. The switch engine compares the packet with a default packet flow table of the plurality of packet flow tables when it determines that the packet does not include a flow header. The switch engine includes the packet with the flow entry of the default packet flow table and performs the corresponding action when the packet matches the flow entry. When the action includes a specific action of comparing the packet with another one of the packet flow tables, the switch engine attaches the flow header to the packet to set a flow ID therein and transmits the packet back to the switch engine through the loop-back port.

In some embodiments, a system may include a tool drill string having a downhole device. The system may include a contact module including a first component. The first component may include a first data path capable of communicating data using a first communication protocol, a second data path capable of communicating the data using a second communication protocol, and a processor electrically connected to the first data path and the second data path. The processor may be capable of selectively routing the data between the first data path and the second data path.

Devices and techniques for packet arbitration for buffered packets in a network device are described herein. A packet can be received at an input of the network device. The packet can be placed in a buffer for the input and a characteristic of the packet can be obtained. A record for the packet, that includes the characteristic, is written into a data structure that is independent of the buffer. Arbitration, based on the characteristic of the packet in the record, can then be performed among multiple packets to select a next packet from the buffer for delivery to an output.

Devices and techniques for packet arbitration for buffered packets in a network device are described herein. A packet can be received at an input of the network device. The packet can be placed in a buffer for the input and a characteristic of the packet can be obtained. A record for the packet, that includes the characteristic, is written into a data structure that is independent of the buffer. Arbitration, based on the characteristic of the packet in the record, can then be performed among multiple packets to select a next packet from the buffer for delivery to an output.

Methods, systems, and computer programs are presented for networking communications. One method includes an operation for receiving a packet in a first format by a virtual driver providing a communications interface of a first type (CI1), the first format being for CI1. Further, the method includes an operation for encapsulating the packet in a second format by a processor, the second format being for a communications interface of a second type (CI2) different from CI1. In addition, the method includes an operation for sending the encapsulated packet in the second format to a switch module. The switch module includes a switch fabric, one or more CI1 ports, and one or more CI2 ports, and the switch module transforms the packet back to the first format to send the packet in the first format to a CI1 network via one of the CI1 ports in the switch module.

A method of Software-Defined Networking (SDN) switching. A packet of a flow is received onto a SDN switch via a NFX circuit. The NFX circuit determines that the packet matches a flow entry stored in any flow table in the NFX circuit, counts the number of packets of the flow received, and determines that the number of packets of the flow received is above a threshold value. The NFX circuit then forwards the packet to a NFP circuit in the SDN switch. The NFP circuit determines that the packet matches a flow entry stored in the flow table in the NFX and generates a new flow entry that applies to a relatively narrow subflow of packets that is forwarded to and stored the flow table in the NFX circuit. A subsequent packet of the flow is switched by the SDN switch without forwarding the packet to the NFP.

Logic may store at least a portion of an incoming packet at a memory location in a host device in response to a communication from the host device. Logic may compare the incoming packet to a digest in an entry of a primary array. When the incoming packet matches the digest, logic may retrieve a full entry from the secondary array and compare the full entry with the first incoming packet. When the full entry matches the first incoming packet, logic may store at least a portion of the first incoming packet at the memory location. And, in the absence of a match between the first incoming packet and the digest or full entry, logic may compare the first incoming packet to subsequent entries in the primary array to identify a full entry in the secondary array that matches the first incoming packet.

Transmission of data over a serial link based on a unidirectional clock signal is provided. A unidirectional clock signal is generated based on a first clock of a master device. The unidirectional clock signal is sent to a slave device that is connected to the serial link. The master device transmits data to the slave device over the serial link based on the first clock. The slave device receives the unidirectional clock signal from a master device. The slave device transmits data over the serial link to the master device based on the unidirectional clock signal.

A method for operating an Ethernet communication device having multiple external physical interfaces for a motor vehicle includes the following steps: detecting a special state on at least one of the interfaces, generating a control signal to adapt the interface in the special state if the special state is detected; and blocking a forwarding of a message packet arriving on the interface in the special state to a media access control unit of the Ethernet communication device on the basis of the control signal.