Class / Patent application number | Description | Number of patent applications / Date published |
370396000 | Distributed switching | 42 |
20080253381 | Pseudowire load balancing - In one embodiment, a communications distribution process maintains at least two pseudowires through a network such that the pseudowires share a burden of delivering data through the network. The communications distribution process receives feedback data concerning operation of each pseudowire. The communications distribution process utilizes the feedback data to distribute communications to the common destination across each of the pseudowires. Additionally, the communications distribution process utilizes the feedback to establish at least one new pseudowire, in addition to the first pseudowire and the second pseudowire, for transmission of data traffic. | 10-16-2008 |
20080259935 | Method and Network for Transferring Data and Signals - In a method and network for transferring data and signals between terminal equipment via one or more switching stations, the data and digitized signals are combined in cells, with each cell having a header in which connection information is contained that designates a transmission or routing target. The terminal equipment and switching stations are synchronized so that the cells are transferred in a synchronized manner via one or more switching stations. Signals and high quality of service (QoS) data thus can be transferred through the same network. | 10-23-2008 |
20080273540 | System and method for rendezvous in a communications network - The present invention introduces the notions of a rendezvous component and rendezvous functionality into the communications network environment. Using the invention, an application can express information regarding when an operation requested of a device should complete and at which location, and it enables the device to perform its operations respecting this information while also improving the device's overall behavior. In an embodiment, one or more data objects are distributed across one or more collections of storage devices using a dispersal technique. When access to a data object is desired, a rendezvous component issues a set of constituent requests to the collections of storage devices. These requests typically include location and timing rendezvous parameters specifying a destination location where and a given time when a given data object is to be reconstituted. The data object is then reconstituted at the destination location and at the given time, while respecting a given characteristic of a storage device access model. In this embodiment, the collection of storage devices may comprise disk devices, and the requests are issued by a given application, such as a media server. | 11-06-2008 |
20080279197 | Application level router for routing heterogeneous input to the most appropriate application - A client-agnostic software routing component for routing input data of a type and version to a most appropriate type and version of client application of a family of related applications. The router, rather than the client application, registers as the file extension handler and as the protocol handler, and thus, receives all input data targeting the client applications. On startup, the router creates a list of available client applications, the client versions and types, and versions of input data the clients can handle. On receiving the input, the router determines if the router can parse the version of the input. The router refers to the list of available clients to determine if one or more of the client applications can handle a particular version and type of the input data. After this determination, the router routes the input to the most appropriate client. | 11-13-2008 |
20080291923 | Application routing in a distributed compute environment - A multi-level classification scheme for classifying subscriber traffic at a network node coupled between subscribers of network services and providers of the network services includes two levels of classification. The subscriber traffic is received at the network service node. A first portion of the subscriber traffic is selectively routed from a plurality of first level routers to a plurality of second level routers within the network service node. The first portion of the subscriber traffic is then selectively routed from the second level routers to network applications executing within the network service node for processing. | 11-27-2008 |
20080304491 | RELIABLE MESSAGE TRANSPORT NETWORK - A multiprocessor computer system comprises a sending processor node and a receiving processor node. The sending processor node is operable to send packets comprising part of a message to a receiver, to maintain a message buffer entry in the sender comprising the sent packets, to track acknowledgment from the receiver that sent packets have been received; to maintain a timer indicating the time since message data has been sent, and to resend packets not acknowledged upon the timer reaching a timeout state. The receiving processor node is operable to send acknowledgement to the sender that received packets have been received, to track packets using a received message table to track which packets comprising part of the message have been received and whether all packets in the message have been received, and to process packets once all packets in a message are received to reassemble the received message. | 12-11-2008 |
20080317043 | SYSTEM AND METHOD FOR DYNAMIC DISTRIBUTED COMMUNICATION - Growth of a distributed communication system is facilitated through dynamic addition of routing elements. A new routing element may be added to a network of routing elements by first establishing a connection between the new routing element and an existing routing element in the network. The connection may be either wireless or wireline. At least one address is assigned to the new routing element. Each assigned address comes from a pool of addresses maintained at the existing routing element. At least one pool of addresses is issued to the new routing element, permitting the new routing element to dynamically add yet another new routing element to the network of routing elements. | 12-25-2008 |
20090003354 | Method and System for Packet Traffic Congestion Management - A packet routing system is provided that comprises a processor, a component, a resource map and a resource map manger. The component classifies an incoming packet of a user session. The resource map identifies a plurality of resources used to process the incoming packet. The resource map manager determines an availability of at least some of the resources and based on the availability either promote processing the incoming packet or drop the incoming packet. | 01-01-2009 |
20090073990 | METHOD OF REPLACING A ROUTER IN A LAYER 3 NETWORK - An apparatus and method of replacing a router in a Layer 3 network, includes configuring a new router to accept a data packet having, as a destination address field, a first media access control address of a replaced router. The method further comprises setting the destination address field of the data packet to the MAC address of the new router, and forwarding the data packet. A router performing the above method comprises configuration logic to configure the router to accept a data packet having, as a destination address, a media access control address of a replaced L3 device; and keep-alive logic adapted to periodically transmit a keep-alive packet to an allocated destination address. The router further comprises packet processing logic that accepts the received data packet, sets the destination address of the data packet to the MAC address associated with the router, and forwards the packet to a destination host. | 03-19-2009 |
20090168786 | DEFINING AN END-TO-END PATH FOR A NETWORK SERVICE - A device receives, from a customer, a request for an end-to-end path through a network, determines parameters of a query based on the request and path criteria, and executes the query on a database of network elements capable of being included in the end-to-end path. The device also selects one or more of the network elements provided in the database based on results of the query, and reserves, in the database, the one or more selected network elements for the end-to-end path. | 07-02-2009 |
20090262745 | State-based filtering on a packet switch appliance - A packet switch appliance includes a plurality of ports. One of the plurality of ports is configured to operate as a network port connected to a packet-switching network. Another of the plurality of ports is configured to operate as a first instrument port connected to a network instrument. To filter packets, one or more packets or copies of packets received through the first network port are examined prior to the packets or copies of packets being sent out the first instrument port to determine a current state of a state-based protocol, which includes a plurality of potential states. A filter is created or modified for the first network port or the first instrument port based on the determined current state of the state-based protocol. | 10-22-2009 |
20100316055 | Two-Layer Switch Apparatus Avoiding First Layer Inter-Switch Traffic In Steering Packets Through The Apparatus - Link-level data communications implemented in switching apparatus comprising modular switches disposed within a modular computer cabinet that includes modular computer systems; the switching apparatus configured as two layers of switches, the first layer switches coupled to one another for communications by inter-switch links, each second layer switch coupled for communications to the modular computer systems; all the switches stacked by a stacking protocol that shares administrative configuration information among the switches through the inter-switch links and presents all the switches as a single logical switch; the switching apparatus including ports coupling the apparatus to networks and to service applications and terminating applications on the modular computer systems; and sending the packet from network to modular computer system to which the packet is directed, or from modular computer system to network to which the packet is directed, the packet traversing none of the inter-switch links among the first layer switches. | 12-16-2010 |
20110122876 | SUBSCRIBER NETWORK SYSTEM AND METHOD OF SETTING INFORMATION IN CONCENTRATOR THEREOF - A subscriber network system is provided which is capable of reducing the response time and reducing the device cost. In the subscriber network system, a control cell is received that includes an ID portion, a data portion, and a cyclic redundancy check (CRC) portion. The control cell is processed in cooperation with a virtual path identifier (VPI), where the processing obtains the ID portion and the CRC portion. The ID portion and the CRC portion are processed and the ID portion is compared to a first stored value and the CRC portion is compared to a second stored value to produce information. A cell is produced to include the information and the produced cell is used to facilitate a connection in a network. | 05-26-2011 |
20140241370 | DATA RELAY APPARATUS - A first receiver receives an activation signal from a first network and gives the activation signal to an input side of a second transmitter via a first connection line; thereby, the activation signal is sent out via the second transmitter to a second network. Thus, the activation signal is not directly transmitted from the first network to the second network; instead, the activation signal is transmitted by using conversion functions of the first receiver and the second transmitter. This configuration can prevent occurrence of distortion or attenuation in the activation signal. The activation signal from the first network thus enables ECUs belonging to the second network to be activated certainly without delay. | 08-28-2014 |
20160182357 | Internet Control Message Protocol For Completing A Secondary Protocol Transaction | 06-23-2016 |
20160191419 | CELL BASED DATA TRANSFER WITH DYNAMIC MULTI-PATH ROUTING IN A FULL MESH NETWORK WITHOUT CENTRAL CONTROL - The present invention relates to computing apparatus as an element of a network structure using a method for acquiring and maintaining cell locked data transfer amongst a number of computing apparatuses which can be full mesh interconnected by full duplex data transfer links. A predefined number of symbols transmitted as a cell is followed by a variable number of idle symbols to ensure the nominally simultaneous start of the cell transfers throughout the network without a central control. At specific positions of the cells each computing apparatus broadcasts a list of its transmission requests and receiver capabilities to all other computing apparatuses. Each of the interconnected computing apparatuses executes the same arbitration procedure based on the identical data set of transmission requests and receiver capabilities. As a result transmission paths are assigned for direct transmission and for payload forwarding. The transmission paths can be assigned per cell period individually for both directions of each link. Several packet protocols assigned over the cell transmission layer can coexist in the network. | 06-30-2016 |
370397000 | Employing logical addressing for routing (e.g., VP or VC) | 26 |
20080205410 | Asymmetrical forwarding in layer 3 IP VPNs - A first forwarding instance is provided that includes a first set of routes. A second forwarding instance is provided that includes a second set of routes comprising a subset of the first set of routes. The first routing instance and the second routing instance are associated with a same virtual private routed network (VPRN). | 08-28-2008 |
20080205411 | Atm Network and Method of Operating Thereof - An Asynchronous Transfer Mode network ( | 08-28-2008 |
20080259936 | SERVICE PROCESSING SWITCH - A system and method for providing IP services. A packet is received at a line interface/network module and forwarded to a virtual routing engine The virtual routing engine determines if the packet requires processing by a virtual services engine. If the packet requires processing by the virtual services engine, the packet is routed to the virtual services engine for processing. | 10-23-2008 |
20080298374 | APPARATUS FOR MONITORING NETWORK CONNECTIVITY - An apparatus for monitoring network connectivity is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a network device having a controller element to route packets to one or more locations of a virtual private network utilizing Virtual Routing and Forwarding (VRF) functionality, and route a connectivity message to a connectivity server in response to receiving a query for connectivity information. The query can be grouped with at least one other query for at least one among a border network device of a service provider and a customer network device of the virtual private network. Additional embodiments are disclosed. | 12-04-2008 |
20080298375 | Operating ad-hoc wireless local area networks using network identifiers and application keys - Methods wireless communication terminals are disclosed that operate an ad-hoc wireless local area network. A network identifier and an application key are maintained within a first wireless communication terminal. The application key is defined for at least one application program hosted on the first wireless communication terminal. An ad-hoc wireless local area network is established between the first wireless communication terminal and a second wireless communication terminal using the network identifier and the application key. | 12-04-2008 |
20080304492 | VCAT TRANSMISSION SYSTEM AND VCAT BAND CONTROL METHOD - A source node or a sink node retains path information of a VC path and actualizes an efficient process in an LCAS process on the basis of the path information. This can actualize an efficient process procedure in the LCAS and reduce an amount of loss data. | 12-11-2008 |
20080317044 | SEAMLESSLY SWITCHING OVERLAY NETWORK RELAY TREES - Technologies for switching a set of nodes in an overlay network from one relay tree configuration to another without duplicate packets or packet loss at any of the nodes. A commander node calculates a new relay tree as well as a media stream set configuration for each node in the overlay network, each media stream set corresponding to the new relay tree. Media stream sets include a unique version number or the like that identifies the specific relay tree configuration of which they are a part. Also provided are technologies for associating a media stream with a particular relay tree configuration and the corresponding media stream set of each node in the overlay network. | 12-25-2008 |
20090010266 | System of Extending Address on Atm Universal Test Operation Interface Bus and the Method Thereof - The system of this invention for extending address on UTOPIA and the method thereof can extend the single PHY on the ATM switching chip bus to many PHY ports easily without increasing too much cost, and thus increase the application flexibility of corresponding ATM switching chips. Evidently, there would be still many other embodiments of the invention, the people skilled in the art can make a variety of corresponding changes and transformations in accordance with the invention without departing from its spirit and essential, but these corresponding changes and transformations should also be in the protection range of the claims of this invention. | 01-08-2009 |
20090010267 | NETWORK DEVICE AND PACKET FORWARDING METHOD THEREOF - A network device, for forwarding packets from an asynchronous transmit mode (ATM) network over different permanent virtual connections (PVC) to a plurality of terminal devices, includes a storage module, a flag setting module, a buffer, and a sending module. The storage module is for storing an identifier of at least one predetermined PVC, and packets transmitted over the at least one predetermined PVC need to be processed with higher priority. The flag setting module is for receiving the packets transmitted over the different PVCs, marking packets transmitted over the at least one predetermined PVC corresponding to the identifier stored in the storage module, and sending the packets to the buffer for temporarily storing the packets. The sending module is for retrieving the packets from the buffer, and first sending the marked packets to the plurality of terminal devices. | 01-08-2009 |
20090016360 | STORAGE MEDIA STORING A NETWORK RELAY CONTROL PROGRAM, APPARATUS, AND METHOD - A judging unit in a network relay apparatus for communicating between first and second networks determines whether a first address in the first network and a second address in the second network overlap. If so, a determining unit finds a third address range and a fourth address range to avoid the overlap. The third address range is a private address range used by a communication device within the first network to identify a communication device within the second network, and the fourth address range is a private address range used by a communication device within the second network to identify a communication device within the first network. | 01-15-2009 |
20090041030 | Method for providing content service based on virtual channel in disk media playback apparatus - A method for providing a content service based on a virtual channel in a disk media playback apparatus is disclosed. In accordance with the method of the present invention, an open content service is provided using the disk media playback apparatus to overcome drawbacks of a closed broadcasting service and wherein a virtual channel map is employed to support a selection of the content service of a viewer. | 02-12-2009 |
20090041031 | CONVERTER AND COMMUNICATION CONTROL METHOD - A converter for connecting its ATM network with other ATM networks through a LAN, which is provided with an address translation table storing external VPIs, internal VPIs uniquely assigned to the LAN, and opposing MAC addresses for opposing converters in correspondence and a processing unit for performing control for transmitting, to the LAN, frames changed from the external VPI/VCIs of headers of cells from its ATM network to the internal VPI/VCIs by referring to the address translation table and having opposing MAC addresses corresponding to the internal VPI/VCIs attached, removing the opposing MAC addresses of frames received from the LAN by referring to the address translation table, and transmitting cells changed from internal VPI/VCIs to external VPI/VCIs to its ATM network. | 02-12-2009 |
20090046726 | VIRTUAL NETWORK WITH ADAPTIVE DISPATCHER - Methods and systems for providing a virtual network are disclosed. At least one layer of abstraction is created between network service applications and conventional network protocols by inserting an adaptive dispatcher between applications and network transport services on each machine in a network. The message protocol in the virtual network is extensible, allowing application programs to create new headers within any message as needed. The adaptive dispatcher contains handlers that route and dispatch messages within the virtual network based on arbitrary content within each message, including any combination of headers and/or data content. Each device on the virtual network has a virtual address to which messages are directed, allowing devices to move within the network without reconfiguring routing tables. Handlers may be automatically created when an event meeting predefined criteria occurs, including the non-occurrence of a condition, making the virtual network self-healing and adaptive to reconfiguration. | 02-19-2009 |
20090046727 | ROUTING WITH VIRTUAL CHANNELS - An approach to introducing adaptive routing into a communication approach for passing messages between nodes over links between the nodes includes forming virtual channels over the links of the system and defining a deterministic routing function over the virtual channels such that the deterministic routing function is deadlock free. Adaptive routing is then permitted at nodes using the existing virtual channels by introducing a constraint on the available virtual channels used to forward communication that arrives at a node for a particular destination. The constraint on the virtual channels is such that the adaptive system is also deadlock free. | 02-19-2009 |
20090046728 | SYSTEM AND METHOD FOR DELIVERING SECURITY SERVICES - Systems and methods are provided for delivering security services. According to one embodiment, multiple virtual routers are established within a service processing switch, which is operable to be logically interposed between a public communications network and multiple subscriber sites. Each of the virtual routers has associated therewith a subset of processing and storage resources of the service processing switch. Subscribers are provided with respective sets of customized application layer services. Subscriber resource isolation is provided by partitioning the virtual routers between the subscribers including allocating and configuring partitions, having subsets of the virtual routers, to the subscribers. Changeable provisioning of processing capacity between the subscribers is provided by dynamically reallocating resources of the service processing switch between the partitions based on comparative processing demands of the customized application layer services. | 02-19-2009 |
20090092141 | SWITCH WITH VIRTUAL NETWORK IDENTIFIER RE-WRITE CAPABILITY - A switch includes a processor, an ingress port having ingress port logic, and an egress port. It may also include a virtual network identifier rewrite component for rewriting a virtual network identifier in a data frame received the ingress port with a new virtual network identifier. Also included is a virtual network identifier rewrite rule set, where a rule may have one or more of the following: a received virtual network identifier, a source Fibre Channel identifier (FCID) address, an ingress port identifier, and a new virtual network identifier. The ingress port logic may insert a received virtual network identifier into the data frame received at the ingress port, where the virtual network identifier may correspond to the ingress port. The virtual network identifier rewrite component may assign the new virtual network identifier to the data frame according to a specific virtual network identifier rewrite rule. | 04-09-2009 |
20090109979 | SYSTEM AND METHOD FOR A MOBILE ACCESS FEMTOCELL - A system and method for wireless communication indoors includes a femtocell base station coupled for operable interaction with an in-building router having a virtual private network server client connection embedded therein. A user equipment unit within range of the femtocell base station for interaction therewith cooperates with a virtual private network server, an internet protocol network, and a cellular network to provide improved wireless coverage and quality of service indoors. | 04-30-2009 |
20090154472 | Packet Forwarding Apparatus And Method For Virtualization Switch - Disclosed is a packet forwarding apparatus and method for virtualization switch, applicable to switch environments built by Internet Small Computer System Interface (iSCSI) connections. The packet forwarding apparatus comprises a header extractor, a dispatcher, and a forwarding unit. After completion of the authorization for iSCSI session connections, the header extractor receives at least an iSCSI packet and extracts the header for the at least an iSCSI packet. The dispatcher decides the flow directions for the received packets. The forwarding unit forwards the packets between the client-side connection and the storage-side connection, including converting the virtual address into physical address for the received iSCSI packets, building the mapping between the client-side interface and the storage-side interface, and delivering the payload associated with the connections. | 06-18-2009 |
20090207848 | FLEXIBLE BUFFER ALLOCATION ENTITIES FOR TRAFFIC AGGREGATE CONTAINMENT - An apparatus comprising a plurality of physical ingress ports configured to receive data, each data having a data type; a plurality of physical egress ports configured to transmit data; a memory configured to buffer data that has been received; a plurality of virtual routing devices, wherein each of the virtual routing devices is associated with a particular data type and each of the virtual routing devices is configured to: virtually buffer data associated with the respective data type, and regulate the quality of service provided to the respective data type; and a data manager configured to manage the receipt and transmission of data. | 08-20-2009 |
20090252171 | EXPRESS VIRTUAL CHANNELS IN A PACKET SWITCHED ON-CHIP INTERCONNECTION NETWORK - A method, router node, and set of instructions for using express virtual channels in a component network on a chip are disclosed. An input link | 10-08-2009 |
20090285222 | Network On Chip With Minimum Guaranteed Bandwidth For Virtual Communications Channels - A network on chip (‘NOC’) with guaranteed minimum bandwidth for virtual communications channels, the NOC including: integrated processor (‘IP’) blocks, routers, memory communications controllers, and network interface controllers, each IP block adapted to a router through a memory communications controller and a network interface controller, each memory communications controller controlling communications between an IP block and memory, each network interface controller controlling inter-IP block communications through routers, each router coupled for data communications with at least one other router through at least one link, each link including a wire bus wide enough to accommodate simultaneously, for transmission in one direction on the link, all or part of a data switching packet, each router implementing two or more virtual communications channels, each virtual communications channel characterized by a communication type, each virtual communications channel guaranteed at least a minimum bandwidth for data transmissions over a link between routers. | 11-19-2009 |
20100309921 | Quality of Service Using Virtual Channel Translation - Virtual channels are used to improve quality of service through a large port count switch. Data frames are sent from one small switch to another small switch within the large port count switch on virtual channels. The use of virtual channels helps prevent congestion caused by a first external source device sending data to a first external destination device from affecting a second external source device sending data to a second external destination device. | 12-09-2010 |
20110292947 | DISTRIBUTED CONFIGURATION MANAGEMENT FOR VIRTUAL CLUSTER SWITCHING - One embodiment of the present invention provides a switch. The switch includes a port to couple to a second switch. The switch also includes a control mechanism configured to maintain a set of configuration information for a virtual cluster switch which includes a number of member switches. The set of configuration information includes global configuration information for the virtual cluster switch and switch-specific configuration information for one or more member switches. In addition, the set of configuration information is replicated and stored at each member switch. | 12-01-2011 |
20130308649 | METHOD AND SYSTEM FOR LINK AGGREGATION ACROSS MULTIPLE SWITCHES - One embodiment of the present invention provides a switch. The switch includes a forwarding mechanism and a control mechanism. During operation, the forwarding mechanism forwards frames based on their Ethernet headers. The control mechanism operates the switch in conjunction with a separate physical switch as a single logical switch and assigns a virtual switch identifier to the logical switch, wherein the virtual switch identifier is associated with a link aggregation group. | 11-21-2013 |
20150010009 | DATA TRANSPORT SYSTEM, TRANSMISSION METHOD, AND TRANSPORT APPARATUS - A data transport system comprises transport apparatus and at least one computer. The transport apparatus construct a second network coupled to a first network which is constructed by a communication apparatus. A logical path is built between a first transport apparatus and the computer. The first transport apparatus is configured to: hold management information, which associates identification information of a port with logical path identification information; refer to the management information to identify the logical path identification information that is associated with the port through which the control information has been received; and assign the identified logical path identification information to the control information, and transmit the control information over the logical path. The computer assigns the logical path identification information assigned to the control information to response information, and transmits the response information to the second network. | 01-08-2015 |
20150063359 | Buffer-Less Virtual Routing - A network includes a plurality of endpoint routers and intermediate routers. When a new data stream is detected at any endpoint router, the first packet is sent to a virtual routing server with knowledge of the entire network topology. Based on the topology, current usage, and historical usage, the virtual routing server determined a path for the data stream and begins to update the routing tables of the intermediate routers to reflect the determined path. Until the update is complete, all packets in the data stream are routed first to the virtual routing server and then to their destination. Once the update is complete, packets in the data stream are routed directly along the determined path. | 03-05-2015 |