Certain embodiments described herein are generally directed to configuring a generic channel for exchanging information between a hypervisor and a virtual machine run by the hypervisor that resides on a host machine. In some embodiments, the generic channel represents a network or communication path enabled by a logical switch that connects a HyperBus running on the hypervisor and a node agent running on the virtual machine. In some embodiments, network traffic handled by the generic channel is isolated from incoming and outgoing network traffic between the virtual machine and one or more other virtual machines or hosts.

A hub apparatus and a method for controlling the same are provided for efficiently managing a frequency slot or a time slot in communication between at least one hub apparatus and at least one device. The hub apparatus includes a communicator configured to receive a communication signal from at least one device; a controller configured to allocate time slots for the at least one device on the basis of the communication signal received from the at least one device, and when the communicator receives a communication signal from a new device other than the at least one device, transmit a control signal for reallocating time slots for at least one device having the new device; and a memory configured to store data that is associated with a communication frequency, a use amount of time slots, and a communication signal strength of the at least one device.

An operation method of a first communication node supporting communications between an Ethernet-based network and a controller area network (CAN) includes: receiving an Ethernet message from a second communication node belonging to the Ethernet-based network; performing an integrity verification on first automotive safety integrity level (ASIL) authentication information included in the Ethernet message; generating a CAN message based on the Ethernet message for which the integrity verification has been completed; and transmitting the CAN message to a third communication node belonging to the CAN.

An on-vehicle communication system mounted on a vehicle comprises a first switching device, a second switching device and a third switching device each including a first communication port and a second communication port. The first communication port and the second communication port of the first switching device are respectively connected to the first communication port of the second switching device and the first communication port of the third switching device, and the second communication port of the second switching device and the second communication port of the third switching device are connected to each other. Each of the first switching device, the second switching device and the third switching device measures a reception signal quality for the first communication port of the device itself and a reception signal quality for the second communication port of the device itself. One of the first communication port and the second communication port is selected as a port for use which should be used for communication in each of the first switching device, the second switching device and the third switching device. Each of the switching devices performs switching processing for determining whether or not the port for use is to be switched to the another one of the first communication port and the second communication port based on the reception signal quality for the first communication port and the second communication port.

A system includes: a first telephone; a relay that manages first accommodation position information of the first telephone; and an exchange that includes a management table that manages second telephone identification information, second accommodation position information of a second telephone connected to the relay, and an extension number of each of a plurality of the second telephones, receives first telephone identification information and the first accommodation position information, when the first telephone identification information does not match with any one of the second telephone identification information registered, and the first accommodation position information matches with one of the second accommodation position information in the management table, changes second telephone identification information corresponding to the matched second accommodation position information to the first telephone identification information, and uses an extension number corresponding to the matched second accommodation position information as an extension number of the first telephone.

In a sensor relay apparatus (10), a storage unit (11) stores a communication protocol correspondence list (22B) in which a sensor terminal (ST) and a communication protocol are registered in association with each other, and a communication format (22C) to be used in the communication protocol, a relay processing unit (12) communicates with the sensor terminal (ST) specified in the communication protocol correspondence list (22B) based on the communication protocol associated with the sensor terminal (ST), receives sensor data detected by the sensor terminal (ST), converts the format of the sensor data based on the communication format (22C) in association with the communication protocol, and relays and transfers the sensor data to a processing apparatus (20), and a relay managing unit (16) updates the communication protocol correspondence list (22B) or the communication format (22C) in the storage unit (11), based on a communication protocol correspondence list or a communication format newly notified from the processing apparatus (20).

A method for transmitting real-time messages in a computer network (100), in particular real-time computer network, wherein said network comprises two or more computing nodes (21, 22, 23, 24, 25, 26) and one or more star couplers (1, 2, 3, 4), wherein said nodes are interconnected via at least one star coupler, wherein each node is connected to at least one star coupler via at least one of the communication links (50), and wherein the nodes exchange messages (M1, M2) with one another and with the at least one star coupler, and wherein star couplers, which are synchronized to a global time base (C), transmit a first non-empty set (SSET) of real-time messages according to a synchronized communication paradigm, and/or wherein computing nodes, which are synchronized to the global time base, transmit said first non-empty set of real-time messages according to the synchronized communication paradigm, wherein a star coupler, which is not synchronized to a global time base, and/or a computing node, which is not synchronized to a global time base, transmits a second non-empty subset (CSET) of said first non-empty subset of real-time messages according to an unsynchronized communication paradigm and stops the transmission of said second non-empty subset of real-time messages according to the synchronized communication paradigm.

A chassis front-end is disclosed. The chassis front-end may include a switchboard including an Ethernet switch, a Baseboard Management Controller, and a mid-plane connector. The chassis front-end may also include a mid-plane including at least one storage device connector and a speed logic to inform at least one storage device of an Ethernet speed of the chassis front-end. The Ethernet speeds may vary.

In one embodiment, a method comprises: promiscuously detecting, by a parent network device in a tree-based network topology, a data packet transmitted to a child network device attached to the parent network device, the data packet transmitted by a grandchild network device attached to the child network device; determining, by the parent network device, whether the data packet transmitted to the child network device is to be forwarded toward a destination via the parent network device; and the parent network device selectively initiating intercepted forwarding of the data packet toward the destination, on behalf of the child network device, based on determining that the data packet is to be forwarded toward the destination via the parent network device.

A central payload manager device may include a network switch, a central payload manager processing device, a plurality of connecting interfaces, a plurality of sensor processing devices connected to corresponding ones of the connecting interfaces and to the network switch, a cell modem or radio link connected to one or more of the connecting interfaces and to the network switch, a data storage device connected to the processing device, wherein the data storage device is configured to receive and store information from the plurality of sensor processing devices and from the cell modem or radio link via the network switch and the central payload manager processing device; and an iridium modern connecting to the central payload manager processing device and to a corresponding one of the connecting interfaces, wherein the iridium modem is configured to receive and transmit the stored information from the data storage device to an iridium antenna.