Abstract: The distributed switch may include a plurality of chips (i.e., sub-switches) on a switch module. These sub-switches may receive from a computing device connected to a Tx/Rx port a multicast data frame (e.g., an Ethernet frame) that designates a plurality of different destinations. Instead of simply using one egress connection interface to forward the copies of the data frame to each of the destinations sequentially, the sub-switch may use a plurality of a connection interfaces to transfer copies of the multicast data frame simultaneously. The port that receives the multicast data frame can borrow the connection interfaces (and associated hardware such as buffers) assigned to these other ports to transmit copies of the multicast data frame simultaneously.

Abstract: Communication apparatus includes at least first and second communication interfaces, configured for digital communication with first and second nodes. At least one processor is coupled between the communication interfaces, and is configured, upon receiving a message from one of the first and second nodes that is directed to the other of the first and second nodes, to carry out the following actions: when the message contains a command, to convey the command to the other of the first and second nodes; when the message contains status information, to convey the status information to the other of the first and second nodes; when the message contains a response to a command, to discard the response; and when the message contains a query, to block the query from reaching the other of the first and second nodes.

Abstract: A switching device comprising a plurality of ingress ports and a plurality of egress ports. The switching device is arranged to receive data packets through the ingress ports and to forward received data packets to respective ones of the egress ports. The switching device is further arranged to determine a first time at which a first cell of a selected data packet is to be forwarded to one of the egress ports, determine a further time at which a respective further cell of the selected data packet is to be forwarded to one of the egress ports, store data indicating that the respective further cell is to be forwarded at the determined further time, forward the first cell at the first time, and forward the further cell of the selected data packet at the determined further time.

Abstract: A method of handling a voice over internet protocol (VoIP) function of a mobile device in a wireless communication system is disclosed. The method comprises arranging a user interface in the mobile device, for a user of the mobile device to control the VoIP function via the user interface; and processing a requested data connection between the mobile device and a network of the wireless communication system according to the VoIP function, when the requested data connection is determined to be a VoIP connection.

Abstract: Back pressure is mapped within a network, and primary bottlenecks are distinguished from dependent bottlenecks. Further, the presently disclosed technology is capable of performing network healing operations designed to reduce the data load on primary bottlenecks while ignoring dependent bottlenecks. Still further, the presently disclosed technology teaches identifying and/or suggesting a switch port for adding a node to the network. More specifically, various implementations analyze traffic load and back pressure in a network, identify primary and dependent bottlenecks, resolve the primary bottlenecks, collect new node parameters, and/or select a switch port for the new node. Further, a command can be sent to a selected switch to activate an indicator on the selected port. New node parameters may include new node type, maximum load, minimum load, time of maximum load, time of minimum load and type of data associated with the new node.

Abstract: A data communication method and a data communication apparatus are provided. The method mainly includes: receiving, by an adapter card, information elements sent by a first switching network board, in which a format of the information element is an information element format capable of being identified by the first switching network board; and performing, by the adapter card, format conversion on the information elements according to an information element format capable of being identified by a second switching network board, and sending the converted information elements to the second switching network board. In this manner, different types of switching network boards can be interconnected and communicate with each other, so as to implement data transmission between network devices having different structures.

Abstract: Systems, devices, and methods of implementing 50 Gb/s Ethernet using serializer/deserializer lanes are disclosed. One such device includes circuitry operable to provide a media access control (MAC) interface. The MAC interface is associated with a port having a 50 Gb/s link rate. The device also includes circuitry operable to generate Ethernet frames from data received at the MAC interface and circuitry operable to distribute the Ethernet frames across a group of serializer/deserializer (SERDES) lanes associated with the port, the group having size N. The device also includes circuitry operable to transmit the distributed Ethernet frames on each of the SERDES lanes at a 50/N Gb/s rate.

Abstract: A BCN network with BCN modems that communicate using predefined messages to establish, optimize and facilitate data communication.

Abstract: Thin-client terminal systems allow computer systems to be shared by multiple computer users. With modern technology, the cost of implementing a thin-client terminal system can be very low. To improve thin-client terminal systems, a thin-client terminal system accepts user input data in a first serial interface format and transcodes the user input data into a second serial interface format for transmission to a server.

Abstract: A network apparatus including a central processing unit, first physical layer devices, a second physical layer device, and a network switch. The network switch includes first ports communicating with the first physical layer devices; a second port communicating with the second physical layer device; and third and fourth ports communicating with the central processing unit over first and second media independent interfaces, respectively. The network switch includes a switch core module configured to route data packets between connected ports, including the first and third ports. The network switch includes a bypass switch configured to (i) in response to a first mode being selected, directly connect the second port and the fourth port, bypassing the switch core module, and (ii) in response to a second mode being selected, disconnect the second port from the fourth port and connect the second and fourth ports to the switch core module.

Abstract: Back pressure is mapped within a network, and primary bottlenecks are distinguished from dependent bottlenecks. Further, the presently disclosed technology is capable of performing network healing operations designed to reduce the data load on primary bottlenecks while ignoring dependent bottlenecks. Still further, the presently disclosed technology teaches identifying and/or suggesting a switch port for adding a node to the network. More specifically, various implementations analyze traffic load and back pressure in a network, identify primary and dependent bottlenecks, resolve the primary bottlenecks, collect new node parameters, and/or select a switch port for the new node. Further, a command can be sent to a selected switch to activate an indicator on the selected port. New node parameters may include new node type, maximum load, minimum load, time of maximum load, time of minimum load and type of data associated with the new node.

Abstract: A converged network adapter in sleep mode can allow a management entity to access and alter configuration of the network adapter over the network. Configuration data such as configuration parameters, firmware, and other data related to the network adapter can be stored in a memory, which can be coupled to a portion of the adapter that receives power during sleep mode. The management entity can send configuration messages to the adapter, which messages can include commands or instructions to read or write contents of the memory. The messages can include values of the configuration parameters to be altered, firmware code, etc. The management entity can also send configuration messages to a baseboard management controller (BMC) coupled to the adapter for message validation. The adapter and the BMC can send results of memory operations back to the management entity in response messages.

Abstract: In a data network node implementing the Precision Time Protocol, low-touch PTP packet processing functions are moved from a PTP processing unit into an efficient network processor. An example network node thus includes a time-transfer protocol processing unit that generates negotiation messages and management messages for a time-transfer protocol and forwards said negotiation and management messages to one or more clients. The network node also includes a separate network processor unit, which is adapted to: receive a configuration message from the time-transfer protocol processing unit, the configuration message comprising stream configuration data for a first type of repetitive time-transfer message; generate a plurality of time-transfer messages according to the first type of repetitive time-transfer message, using the stream configuration data; and forward said plurality of time-transfer messages to the one or more remote network nodes, via the one or more line ports.

Abstract: Telephony application services are provided through use of a service delivery platform (SDP) and by implementing a service-oriented architecture (SOA)-based approach. Various “widgets” of telephony functionality are selected, each widget providing functionality such as call forwarding, call blocking, conferencing, etc. These widgets provide not only call manipulation, but can provide the logic used to process a call. An application or application service thus can combine and/or compose these widgets as needed to provide telephony functionality.

Abstract: The distributed switch may include a plurality of chips (i.e., sub-switches) on a switch module. These sub-switches may receive from a computing device connected to a Tx/Rx port a multicast data frame (e.g., an Ethernet frame) that designates a plurality of different destinations. Instead of simply using one egress connection interface to forward the copies of the data frame to each of the destinations sequentially, the sub-switch may use a plurality of a connection interfaces to transfer copies of the multicast data frame simultaneously. The port that receives the multicast data frame can borrow the connection interfaces (and associated hardware such as buffers) assigned to these other ports to transmit copies of the multicast data frame simultaneously.

Abstract: A device for selective connection of at least one first piece of computer equipment to a plurality of second pieces of computer equipment. The device comprising a first Ethernet port for connection to the first equipment, second Ethernet ports for connection to each of the second pieces of equipment, a selector arranged to connect the first Ethernet port physically and in selective manner to the second Ethernet ports, and a selector control unit. A data processing assembly comprising pieces of equipment connected to at least one such connection device.

Abstract: An embodiment of a mobile router, comprises: a wireless wide area network interface to access a cellular network; a local area network interface to provide access to devices for transfer of data; priority information associated with predetermined types of download data; data rate information associated with the priority information; first apparatus to determine the priority of download data via the wide area network interface; second apparatus to determine if data is being transferred via the local area network interface; and third apparatus to control the data rate for the download data based on the priority information, the data rate configuration information, and whether data is being transferred via the local area network interface.

Abstract: In one embodiment, an Internet Protocol (IP) routing information base of a packet switching device is filtered to produce a significantly smaller subset of IP routes that are installed in one or more forwarding information bases for forwarding of IP packets. In one embodiment, these smaller forwarding information bases are located in memory local to a network processor to more quickly perform lookup operations thereon. In one embodiment, one or more of these forwarding information bases is used only for exact matching of addresses (not longest prefix matching). In one embodiment, the IP routes in these smaller forwarding information bases substantially correspond to packet switching devices in a network (e.g., core and edge routers), such as in contrast to including all the IP routes for devices external to the network.

Abstract: A method of operating a mobile router comprises: storing priority information associated with predetermined types of download data and data rate information associated with the priority information; determining the priority of download data received via the wide area network interface; determining if data is being transferred via the local area network interface; and controlling the data rate for the download data based on the download data priority, the priority information, the data rate configuration information, and whether data is being transferred via the local area network interface.

Abstract: A machine implemented method is provided. The method comprises configuring a target port of a target storage array as a plurality of virtual ports; wherein an application executed by a computing system uses the target port to access storage space at the storage array; presenting the plurality of virtual ports to an operating system instance executed by a computing system processor; and using the plurality of virtual ports to read and write information to the storage space of the target storage array.

Abstract: The present invention is directed a digital data interface device for transferring digital presentation data at a high rate over a communication link. The digital data interface device includes a message interpreter, content module and a control module. The digital data interface device may include an MDDI link controller. The digital data interface device can be used to control a peripheral device, such as a camera, bar code reader, image scanner, audio device or other sensor. In one example, a cellular telephone having a camera with an MDDI link and a digital data device interface is provided.

Abstract: An apparatus and method are described for managing router and communication interfaces.

Abstract: In one embodiment, a protocol state associated with a port of a network device is determined to have expired. A port group of which the port is a member is determined, the port group including ports that share one or more common characteristics. A policy is applied to the ports of the port group to determine whether one or more other ports in the port group also have a corresponding protocol state protocol that has expired. In response to one or more other ports in the port group also having a corresponding protocol state that has expired, expiration of the protocol state is determined to be a false positive and no further action is taken based on expiration of the protocol state. When expiration of the protocol state is not determined to be a false positive, further action is taken based on expiration of the protocol state.

Abstract: A number of ports are configured in a linecard in a network device as dedicated ports and a remaining number of ports as shared ports. A total bandwidth allocated to the dedicated ports is computed. It is determined that available bandwidth at a central crossbar is greater than the total bandwidth allocated to the dedicated ports. The total data sent the central crossbar is rate limited to less than the available bandwidth at the central crossbar. First data associated with the dedicated ports is scheduled to the central crossbar using a first priority. Second data associated with the shared ports is scheduled using a second priority. A shared port data is scheduled based on a ration of a bandwidth requirement for the shared port as a fraction of overall bandwidth requirement for the shared ports.

Abstract: Packet communication apparatus connects plural LANs to each other, in termination of a WAN that conducts data communication using handshake communication protocol. Apparatus buffers data packets between the LANs, and transfers, as a proxy, response packets and data packets to a terminal device. The apparatus stops transmission of data packets belonging to an arbitrary packet flow when the reception of the response packets belonging to the packet flow from the WAN is ceased for a network outage detection time or more set, while transmitting data packets belonging to the arbitrary packet flow. The apparatus retransmits a first data packet whose corresponding response packet is not received, belonging to the packet flow immediately after the data packet transmission stops, and retransmits all data packets whose corresponding response packets are not received, belonging to the packet flow, when receiving the response packets from the WAN.

Abstract: A communications parallel bus receiver interface having N+1 data lines and method of operation. The parallel bus interface employs receiver redundancy at the bus level such that there are N+1 receiver devices. One of the N+1 data signals comprising a spare data signal when a failure occurs in a corresponding channel transmitting one of N parallel data signals. An input switching network is configured to receive and couple N+1 parallel data signals along respective paths to corresponding parallel-configured bit receiver devices, and adapted to couple one received data signal to two or three adjacent bit receivers. A calibration device calibrates one of the two or three adjacent bit receivers, and a qualification device qualifies data decisions made during calibration processes performed by the calibration device. The method cycles through N+1 receivers for periodic recalibration of each receiver (one at a time) while N+1 inputs are processed continuously and uninterrupted.

Abstract: A system includes a client device and a server including a communication module configured to be accessed by the client device through which a user of the client device connects to another user via one of a plurality of communication services connected to the server, wherein one of the plurality of communication services is telephony.

Abstract: According to an example, in a method and an apparatus for expanding member ports of a link aggregation group between clusters, each apparatus in a cluster receives a port joining link aggregation group message sent by a master control board on a master apparatus in the cluster. In response to an apparatus determining that a newly joined port is a port on the apparatus itself and also is the first member port in the link aggregation group of the cluster, the newly joined port is associated with the link aggregation group. By applying the method and the apparatus for expanding member ports of a link aggregation group between clusters in this manner, according to an example, the number of member links in the link aggregation group between clusters is able to be increased, and the robustness of the network interconnection between clusters is also able to be enhanced.

Abstract: Methods and apparatus for providing an extended socket API are disclosed. A method for providing a socket API according to an implementation of the invention may include: receiving data at a first network socket; opening a second network socket; associating the first network socket and the second network socket using a socket file descriptor of a client-side connection; and directing the data from the first network socket to the second network socket. When an application service utilizes the socket API, the method may further include processing the data, i.e., performing a service.

Abstract: Systems and methods to process packets of information use an on-chip information processing system configured to receive, resolve, convert, and/or transmit packets of different packet-types in accordance with different protocols. A first packet-type may use a protocol for wired local-area-networking (LAN) technologies, such as Ethernet. A second packet-type may use a proprietary protocol. The proprietary protocol may be used to exchange information with one or more packet processing engines, such as neural processing engines.

Abstract: A network (60) within a residence or other building, including both wired (5) and non-wired segments (53). The wired segments are based on new or existing wires (5a, 5b, 5c, 5d, 5e) in the building, wherein access to the wires is provided by means of outlets (61a, 61d), such as a telephone system, electrical power distribution system, or cable television wiring system. The non-wired segments are based on communication using propagated waves such as radio, sound, or light (e.g. infrared). The wired and non-wired segments interface in the outlet, using a module (50) that serves as mediator between the segments. The module can be integrated into the outlet, partially housed in the outlet, or attached externally to the outlet. Such a network allows for integrated communication of data units (24b) connected by wires and data units (24a, 24d) connected without wires.

Abstract: An electronic device with network connection functionality includes a transceiver chip and a processing circuit. The transceiver chip is utilized for processing a data corresponding to a physical (PHY) layer. The processing circuit is externally connected to the transceiver chip, for processing a data corresponding to a media access control (MAC) layer. When the transceiver chip receives a designated packet, the transceiver chip generates a notification signal to notify at least one portion of the processing circuit to be switched from a first operating mode to a second operating mode.

Abstract: High speed switching networks can be created with a minimum of cabling complexity using pod switches that are connected to a core switch array. Each pod switch can include line cards arranged in parallel connecting on one side of a midplane circuit board that is orthogonal to the line cards and uplink cards also arranged in parallel connecting on an opposite side of the midplane circuit board. The uplink cards are orthogonal to both the midplane circuit board and to the line cards. Each line card provides links to computing nodes. The uplink cards connect to the core switch array. A simplified novel Ethernet extension protocol can be used in conjunction with the described hardware. Systems, methods, techniques, and articles of manufacture are also described.

Abstract: An exemplary embodiment provides for methods, apparatuses and systems to facilitate the detection of network device failures in a variety of network topologies. This is accomplished by equipping a network device, or other devices used in conjunction with network devices, with a bypass port or network interface, such as a secondary outgoing network traffic communication port. In a normal operating mode, network traffic received at a first network interface or port is forwarded, after processing on the packet processing path of the network device, from a second network interface or port. In one implementation, the second network interface or port and the bypass port or network interface are connected to corresponding interfaces of a router or two routers. When a network device failure occurs network traffic bypasses the packet processing path of the network device and is forwarded from the bypass port or interface.

Abstract: Systems and methods are disclosed that allow for improved management and control of packet forwarding in network systems. Network devices and tool optimizers and a related systems and methods are disclosed for improved packet forwarding between input ports and output ports. The input ports and output ports are configured to be connected to source devices and destination devices, for example, network sources and destination tools in a network monitoring environment. The network devices and tool optimizers disclosed can use superset packet forwarding, such that ingress filter engines are configured with ingress filter rules so as to forward a superset of packets to output ports associated with overlapping filters. Egress filter engines are configured with egress filter rules to then determine which of the superset packets are actually sent out the output ports.

Abstract: A method for line speed interconnect processing. The method includes receiving initial inputs from an input communications path, performing a pre-sorting of the initial inputs by using a first stage interconnect parallel processor to create intermediate inputs, and performing the final combining and splitting of the intermediate inputs by using a second stage interconnect parallel processor to create resulting outputs. The method further includes transmitting the resulting outputs out of the second stage at line speed.

Abstract: In a computer on the transmission side, an NW driver, which is recognized, by the OS, as an NIC driver, stores data to be transmitted and a destination SPA into a memory, and outputs a transaction layer packet (TLP), which has been generated by a first computer, to a PCIe switch. A first NIC logic of the PCIe switch of the PCIe switch corresponding to the first computer on the transmission side adds a system port address (SPA) to the TLP transferred from the first computer, and transfers the data of the TLP to a port associated with a second NIC logic and having an address indicated by the SPA (destination SPA). The second NIC logic having received the data writes the receive data into a memory of a second computer, on the reception side, which is connected to another PCIe switch where the second NIC logic exists.

Abstract: Methods and apparatuses are provided for transmitting and receiving a MAC PDU. The MAC PDU including a MAC header, an extended header group and a payload is generated. The MAC PDU is transmitted to a receiving device. The extended header group includes a first field that indicates whether at least one extended header is included in the extended header group, and a second field that indicates a length of the extended header group.

Abstract: A data transfer device 210 is equipped with a plurality of communication ports 211a and 211b, a communication establishment processor 212, and a communication maintenance processor 213. The communication establishment processor 212 transmits and receives communication establishing information for establishing communication with an external device connected via the communication port to and from the external device. The communication maintenance processor 213 is configured to operate independently of the communication establishment processor 212 and, every time a predetermined transmission period elapses, transmits communication maintaining information for maintaining the establishment of communication with the external device, to the external device.

Abstract: The deployment and scaling of a network of electronic devices can be improved by utilizing one or more network transpose boxes. Each transpose box can include a number of connectors and a meshing useful for implementing a specific network topology. When connecting devices of different tiers in the network, each device need only be connected to at least one of the connectors on the transpose box. The meshing of the transpose box can cause each device to be connected to any or all of the devices in the other tier as dictated by the network topology. When changing network topologies or scaling the network, additional devices can be added to available connectors on an existing transpose box, or new or additional transpose boxes can be deployed in order to handle the change with minimal cabling effort.

Abstract: A household appliance comprises a high speed communication interface, a large volume data processing device linking up with a household appliance control device, and a low speed communication switching device. When the communication target of the household appliance control device is switched to the large volume data processing device, the large volume data processing device converts data entered via the high speed communication interface to a low speed communication format and outputs the data to the household appliance control device via the low speed communication switching device, and converts data entered from the household appliance control device via the low speed communication switching device to a high speed communication format and enters the data into the high speed communication interface.

Abstract: A network system includes a plurality of lower switching hubs, and upper switching hubs connected to each of the lower switching hubs, to relay a normal frame to be transmitted and received between the lower switching hubs. Each of the lower switching hubs includes a lower switch configuring portion for configuring a first link aggregation group for all ports connected to the upper switching hub, and transmitting a first control frame containing its own identifier from all the ports connected to the one or more upper switching hubs. Each of the upper switching hubs includes an upper switch configuring portion for configuring a second link aggregation group for ports connected to a same lower switching hub, based on the first control frames received from the lower switching hubs, and transmitting a second control frame containing its own identifier from the ports configured as the second link aggregation group.

Abstract: Data processing and an accelerator system therefor are described. An embodiment relates generally to a data processing system. In such an embodiment, a bus and an accelerator are coupled to one another. The accelerator has an application function block. The application function block is to process data to provide processed data to storage. A network interface is coupled to obtain the processed data from the storage for transmission.

Abstract: A control communication method and apparatus couples electrical outputs of devices directly to a network I/O module without connecting the devices to an electrical control system. The network I/O module includes outputs for sending control data received over an Ethernet network directly to a production device without intervening electrical control. The network I/O module transmits data identifying the device generating an output signal along with the network I/O module ID, over the Ethernet network in TCP/IP protocol.

Abstract: Roughly described, incoming data packets are delivered by the NIC directly to at least two user level endpoints. In an aspect, only filters that cannot be ambiguous are created in the NIC. In another aspect, the NIC maintains a filter table supporting direct delivery of incoming unicast and multicast data packets to one user level endpoint. Additional requests to join the same multicast group cause replacement of the NIC filter with one in the kernel. In another aspect, a NIC has limited capacity to maintain multicast group memberships. In response to a new multicast filter request, the kernel establishes it in the NIC only if the NIC still has sufficient capacity; otherwise it is established in the kernel.

Abstract: A switching device includes multiple interfaces and a switch fabric. The switch fabric includes switch integrated circuits arranged in a number of stages. Multiple virtual switch planes may be implemented in the switch fabric. Data traffic received at the interfaces is selectively assigned to different ones of the virtual switch planes.

Abstract: A packet transmitting apparatus according to the present invention includes a plurality of ports. When the same unlearned packets have arrived at the plurality of ports, the packet transmitting apparatus judges through packet processing section that the first arrived one of the packets is a previous arrival packet. Then, through previous arrival group judging section, the packet transmitting apparatus selects from the plurality of ports a plurality of ports satisfying a previous arrival port condition for determining a port at which the previous arrival packet arrives as a previous arrival port. The packet transmitting apparatus judges the thus selected plurality of ports as the previous arrival ports having an equal previous arrival characteristic of packets, and includes the ports in a previous arrival port group.

Abstract: The present invention provides systems and methods for providing data transmission speeds at or in excess of 10 gigabits per second between one or more source devices and one or more destination devices. According to one embodiment, the system of the present invention comprises a first and second media access control (MAC) interfaces to facilitate receipt and transmission of packets over an associated set of physical interfaces. The system also contemplates a first and second field programmable gate arrays (FPGA) coupled to the MAC interfaces and an associated first and second memory structures, the first and second FPGAs are configured to perform initial processing of packets received from the first and second MAC interfaces and to schedule the transmission of packets to the first and second MAC interface for transmission to one or more destination devices. The first and second FPGAs are further operative to dispatch and retrieve packets to and from the first and second memory structures.

Abstract: It is provided a communication apparatus for transferring frames, comprising: a controller for controlling operation of the communication apparatus; an interface for inputting/outputting the frames; and a plurality of frame processing parts for processing the input frames. The plurality of frame processing parts each includes: a plurality of storage areas for recording statistics of the frames to be processed; an identifier assigning part for determining, for each of the input frames, one storage area in which the statistics are to be recorded out of the plurality of storage areas, and assigning identification for identifying the determined one storage area to the each of the input frames; and a statistical processing part for updating the statistics that are recorded in the one storage area identified by the identification, by using a result of statistical processing of the frame.

Abstract: Base modules are provided over a backplane network for high availability control of industrial processes or machines. The base modules may include, for example, an I/O base module, which may control the industrial processes or machines and which may releasably receive an I/O function card, an adapter base module, which may communicate with an industrial controller over a separate control network, and a bus expansion base module, which may provide coupling to another bank of base modules. The base modules may be arranged side-by-side via electrical and mechanical connections. Logic of the I/O base module may detect the presence or absence of the I/O function card to allow coupling or bypassing of the I/O function card with respect to the backplane network.