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Message transmitted using fixed length packets (e.g., ATM cells)

Subclass of:

370 - Multiplex communications

370351000 - PATHFINDING OR ROUTING

370389000 - Switching a message which includes an address header

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
370395500 Multiprotocol network 219
370395300 Connection identifier assignment 118
370395400 Assigning period of time for information to be transmitted (e.g., scheduling) 40
370396000 Distributed switching 36
370395200 Connection set-up/disconnect (e.g., Connection Admission Control) 33
370395600 Adapting detail (e.g., converting to/from ATM, or detail of ATM Adaption Layers (AALs)) 17
370395700 Having detail of switch memory reading/writing 16
370398000 Centralized switching 3
20090016361SYSTEM AND METHOD FOR ESTABLISHING COMMUNICATIONS BETWEEN PACKET-SWITCHED NETWORKS - A system and method for establishing communications between packet-switched networks is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a communication device having a controller element to transmit a packet along a logical tunnel established through an Internet Service Provider (ISP) network. The packet is encoded with a Virtual Circuit (VC) label by a local Ethernet network operating independent from the ISP network. The VC-label of the encoded packet is substantially undetectable by one or more network elements of the ISP network while in route through the logical tunnel. Additional embodiments are disclosed.01-15-2009
20100322255PROVIDING CLOUD-BASED SERVICES USING DYNAMIC NETWORK VIRTUALIZATION - The invention is directed to providing cloud-based services using dynamic network virtualization. Embodiments of the invention provide a cloud-based service over a system that has a dynamic network virtualization architecture. The architecture includes a set of distributed forwarding elements with centralized control, and at least one virtual machine that is bound to one of the forwarding elements. These features enable the virtual machine to be migrated across a wide area network while maintaining its original IP address and service continuity.12-23-2010
20110228787APPARATUS AND METHOD FOR ESTABLISHING CONNECTIONS WITH A PLURALITY OF VIRTUAL NETWORKS - A communication system provides one or more services using a plurality of virtual networks provisioned in a network. A communication device belonging to at least one of the plurality of virtual networks is provided with service-ID associating information in which a service-ID identifying a service is associated with at least one virtual network identifier each identifying a virtual network that is included in the plurality of virtual networks and is to be used for providing the service. A base station transmits a service-ID association request to the communication device which then returns the stored service-ID associating information to the base station. Thereafter, the base station selects, from among the plurality of virtual networks, at least one virtual network that is to be used for providing a service identified by the service-ID, based on the service-ID associating information, and establishes a connection with the selected at least one virtual network.09-22-2011
Entries
DocumentTitleDate
20080259929Secure one-way data transfer system using network interface circuitry - Network interface circuitry for a secure one-way data transfer from a sender's computer (“Send Node”) to a receiver's computer (“Receive Node”) over a data link, such as an optical fiber or shielded twisted pair copper wire communication cable, comprising send-only network interface circuitry for transmitting data from the Send Node to the data link, and receive-only network interface circuitry for receiving the data from the data link and transmitting the received data to the Receive Node, wherein the send-only network interface circuitry is configured not to receive any data from the data link, and the receive-only network interface circuitry is configured not to send any data to the data link. The network interface circuitry may use various interface means such as PCI interface, USB connection, FireWire connection, or serial port connection for coupling to the Send Node and the Receive Node.10-23-2008
20090168781ARCHITECTURE TO SUPPORT PUBLIC VOICE VPN SERVICES OVER AN IP NETWORK - The presently disclosed architecture enables a service provider to support public voice VPN services over an IP VPN network. The architecture utilizes a customer VPN, a designated gateway for the customer VPN, an IP VPN transport network, and a Call Control Element/router Complex which uses IP technology to map between the IP VPN and the voice VPN. With such an arrangement, the customer VPN is extended to the gatekeeper of the Call Control Element/router Complex, thereby enabling the provision of voice VPN services over an IP network.07-02-2009
20130136136APPARATUS AND METHOD FOR PROCESSING RECEIVED DATA - An apparatus, upon receiving a first data segment, stores, in a processing queue, a data-segment processing request associated with the first data segment. When the data-segment processing request is extracted from the processing queue, the apparatus performs predetermined processing on the first data segment associated with the data-segment processing request to generate a second data segment, and stores the generated second data segment in a reception buffer provided for each of destinations of data segments. The apparatus stores a holding-stop processing request in the processing queue when the second data segment is stored in the reception buffer being empty, and sends all of one or more second data segments stored in the reception buffer, at once, to a destination associated with the reception buffer when the holding-stop processing request is extracted from the processing queue.05-30-2013
20100040064TRANSMITTER APPARATUS - A transmitter apparatus includes: an MAC-SDU receiver section (02-18-2010
20090028157Receiver and Method for Processing a Stream of Data Packets When an Error Occurred on the Physical Layer - A receiver which receives a stream of data packets including video data packets over a physical data link and drops data packets when an error on a physical communication layer is detected, wherein the receiver comprises a processor, configured so that it is able to check whether the received data packet is a video packet and whether it is corrupted by an error on the physical communication layer. If this is the case, the video packet is marked as corrupted and forwarded to the network layer. There is further provided a method for processing a stream of data packets including video data packets, the method including checking for each data packet whether it is a video data packet; checking for each video data packet whether it is corrupted by an error on the physical communication layer; marking a video packet as corrupted if it is corrupted due to an error on the physical communication layer; and forwarding the marked corrupted video packet to the network layer.01-29-2009
20090103544METHOD AND SYSTEM FOR PROVISIONING AND MAINTAINING A CIRCUIT IN A DATA NETWORK - A method and system are provided for provisioning a circuit in a data network without manual intervention. A network management module receives an order for provisioning the circuit and then, based on the order, transmits a request to a legacy logical element module to configure a logical circuit in one or more network devices in the network. The network device may be a switch. The circuit may be a frame relay circuit or an ATM circuit. A method and system are also provided for maintaining a network circuit in a data network. The network circuit includes both a logical circuit and a physical circuit. A legacy physical element module sends a request for logical circuit data to a legacy logical element module through a network management module in communication with the legacy physical element module and the legacy physical element module. Based on the request, the legacy logical element module retrieves the logical circuit data from one or more network devices in the network and transmits the data to the legacy physical element module through the network management module. Upon receiving the logical circuit data, the legacy physical element module troubleshoots the physical circuit to maintain the network circuit.04-23-2009
20110013636TRACKING FRAGMENTED DATA FLOWS - A device may receive a fragment of a fragmented data unit, determine a flow identifier that identifies a data flow with which the fragment is associated, and create a flow entry, based on the flow identifier, to store information associated with the data flow. The device may also determine a fragment key associated with the fragment, store a pointer to the flow entry based on the fragment key, correlate the fragment and another fragment, associated with the data flow, based on the fragment key and the pointer to the flow entry, and accumulate statistics associated with the fragment and the other fragment after correlating the fragment and the other fragment.01-20-2011
20100128730SIP-Enabled Framework for Multi-Domain Roaming Control Plane in a WiMAX Access Network - Middleware is provided as a control plane for WiMAX control messaging. Each ASN in a WiMAX system is associated with a Session Initiation Protocol (SIP) server. A plurality of Functional Entities (FEs) are distributed across the ASNs, wherein each FE (or a group of FEs) associated with a SIP agent. Each FE is operable to control a function associated with a subscriber station (SS). The function controlled by a first FE is transferred to a second FE by employing the SIP agents to establish a SIP session between the first and second FEs. WiMAX control messages are then exchanged over the established session to transfer the SS function from the first FE to the second FE. The first and second FEs may be in the same ASN—i.e. the SS mobility is intra-domain—or, the first and second FEs may be in different ASNs—i.e. the SS mobility is inter-domain.05-27-2010
20090268741ACCESS DEVICE AND METHOD FOR COMMUNICATION BETWEEN MASTER SHELF AND SLAVE SHELF - A method and apparatus for communication between the master shelf and the slave shelf of an access device is provided. The method includes these a main control board of the master shelf configures a Media Access Control (MAC) address for a main control board of the slave shelf, the main control board of the master shelf configures a MAC address for a service board of the master shelf; and the main control board of the slave shelf configures a MAC address for a service board of the slave shelf, and communication is performed between the main control board of the master shelf and the main control board of the slave shelf, and between the main control board of the master shelf and the service board through the configured MAC address, where the MAC address includes information about the location of the main control board or the service board.10-29-2009
20090067432METHOD AND SYSTEM FOR CONTROLLING A BACK-UP MULTIPLEXER IN A LOCAL COLLECTION FACILITY FROM A REMOTE FACILITY - A system and method suitable for processing television signals includes a remote facility and a local collection facility in communication with the remote facility. The local facility has a plurality of receivers receiving a plurality of channel signals and a plurality of encoders generating a plurality of encoded signals from the plurality of channel signals. The local collection facility includes a primary multiplexer multiplexing the plurality of encoded signals to form a first multiplexed signal and communicates the first multiplexed signal to the remote facility. A monitoring system at a remote facility commanding switching to a back-up multiplexer at the local collection facility. The back-up multiplexer multiplexing the plurality of encoded signals to form a second multiplexed signal and communicating the second multiplexed signal to the remote facility. The remote facility generating an output signal in response to the second multiplexed signal.03-12-2009
20090046722Asynchronous digital subscriber line (ADSL) resource planning - Example methods and apparatus to assign permanent virtual circuits (PVC) to subscribers are disclosed. A disclosed example method to assign a PVC to a subscriber comprises obtaining a parameter representative of a port associated with the subscriber, computing a virtual circuit identifier (VCI) for the PVC from the parameter, and storing the virtual circuit identifier in association with the PVC.02-19-2009
20110142053METHODS AND APPARATUS TO COMMUNICATIVELY COUPLE VIRTUAL PRIVATE NETWORKS TO VIRTUAL MACHINES WITHIN DISTRIBUTIVE COMPUTING NETWORKS - Methods and apparatus to communicatively couple virtual private networks to virtual machines within distributive computing networks are disclosed. A disclosed example method includes receiving a request to provision a virtual machine from a virtual private network, determining a host for the virtual machine within a distributive computing network, creating the virtual machine within the host, communicatively coupling the virtual machine to a virtual local area network switch within the distributive computing network, configuring a portion of a router to be communicatively coupled to the virtual machine via the virtual local area network switch by specifying an address space within the router associated with at least one of the virtual machine or the virtual private network communicatively coupled to the router, and communicatively coupling the portion of the router to the virtual private network.06-16-2011
20090225758NETWORK RELAY APPARATUS, DATA RECEIVING APPARATUS, DATA TRANSMITTING APPARATUS, MULTIPATH MTU FINDING METHOD AND MULTIPATH MTU FINDING SYSTEM - Disclosed is a technique in which, when a plurality of packet routing paths exist, a sender of the packet selects an optimum packet length so as to use network resources effectively. According to the technique, when a plurality of routing paths like a network A (09-10-2009
20090067434ATM COMMUNICATIONS SYSTEM AND METHOD - Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.03-12-2009
20090252168MULTI-PLANE CELL SWITCH FABRIC SYSTEM - A multi-plane cell switch fabric system prevents a decrease of the effective switching capacity when switching the variable-length packets. Distribution units classify input variable-length packets for each address, arranges the packets by a first division length unit, divides the packets into fixed-length cell payloads by a second division length unit that is an integer multiple being twice or more as large as the first division length unit, and forms a fixed-length cell by providing destination information, a source ID, a sequential number, and packet head tail information to each of the cell payloads. The cells are distributed to all the switching units one by one whenever the cells are collected to be the same number as the plural switching units. The reordering units classify the cells, reorder the sequential number in an original order, and reassemble the packets by the packet head tail information of the cell.10-08-2009
20090262744SWITCHING NETWORK - A large high capacity switch is provided for a communication network which is constructed from a network of smaller switches. Data is fragmented into fixed sized cells and the cells of a traffic flow are aggregated by grouping cells to form larger yet uniform units of information transfer. The groups are transmitted synchronously and in parallel to increase the effective bandwidth of information transfer.10-22-2009
20090290587Method and apparatus for transmitting data from asynchronous network via synchronous network - A transmitting apparatus for encapsulating data received from an asynchronous network to a frame of a specified format and transmitting the received data as a synchronous frame to a synchronous network, includes a code generating part configured to generate an error detection code for detecting an error in the received data and add the error detection code to the received data, an inverting part configured to perform bit inversion in which the received data added with the error detection code are converted to bit inverted received data, a selecting part configured to select either the received data or the bit inverted received data according to the number of bit patterns included in the received data and the bit inverted received data, and a transmitting part configured to transmit either the received data added with the error detection code or the bit inverted received data selected by the selecting part.11-26-2009
20090154465Method And System For Asymmetric Operation In A Network Node In An Energy Efficient Ethernet Network - An Ethernet network comprising multi-rate link partners that may be operable to communicate symmetrically and/or asymmetrically via any of a plurality of channels. The multi-rate link partners may monitor one or more factors that may affect their power consumption and/or energy efficiency. During operation, an uplink and/or downlink communication rate may be configured, based on the monitoring, to enable asymmetrical data rate operation. The monitored factors may comprise prior or current data rates, bit error rate, packet error rate, latency, queued data and/or tasks, for example. The multi-rate link partners may comprise a twisted pair PHY, an optical PHY or a backplane PHY. In order to reduce power consumption and/or improve energy efficiency, one or more of the uplink communication rate and/or the downlink communication rate may be lowered. The power consumption may be reduced for a multi-rate PHY, a host computer and/or a MAC controller.06-18-2009
20090190595METHOD, SYSTEM AND DEVICE FOR TRANSMITTING OVERHEAD INFORMATION - A method for sending overhead information includes: encoding customer information into a 64B/66B customer information code block; encoding configured overhead information into a 64B/66B code block, and marking the code block as an overhead code block; and sending the customer information code block and the overhead code block, where M of every N sent code blocks are overhead code blocks (M and N are positive integers and M is smaller than N). A method for receiving overhead information includes: receiving the 64B/66B code block; identifying the overhead code block according to an identifier of the overhead code block and extracting overhead information from the overhead code block; and decoding the customer information code blocks other than the overhead code blocks and obtaining the customer information. Through the foregoing methods, fixed bandwidth of the overhead information is ensured, and the OAM information transmission performance is improved.07-30-2009
20090190594PUBLISH-SUBSCRIBE LOOPING DETECTION AND CORRECTION - This system detects and corrects looping problems in a publish-subscribe messaging network. This system requires a token which uniquely identifies a node in this network or universally unique in this messaging network. This system maintains a list of Universally Unique Identifiers (UUID) as a metadata attached to each publish-subscribe message (“publication”). As a node forwards a publication to another node, it is required to append its own UUID to this list or discard the message if its UUID already is in the attached list. Several nodes could form a broker cooperative aggregate node and have a unique identifier for all the nodes in the cooperative if they have an internal mechanism for preventing publication looping.07-30-2009
20080317034Method and system for apportioning channels in a programmable multi-source, multi-destination system - This invention further features a method of apportioning channels in a programmable multi-source, multi-destination system, the method including determining the source for each channel by: a) computing the sum of the number of channels carried by the current and all preceding sources, b) computing a source identifier for each channel based on the computed sum of the number of channels carried by the current and all preceding sources, determining which section of the source the channel is located based on the computed source identifier, and determining the destination for each channel by: a) computing the sum of the number of channels carried by the current and all preceding destinations, and b) computing a destination identifier of the first channel sent to each destination based on the computed sum of the number of channels carried by the current and all preceding destinations.12-25-2008
20090196295ONE OR MORE MULTIPORT SYSTEMS TO FACILITATE SERVICING OF ASYNCRHONOUS COMMUNICATIONS EVENTS - One or more multiport systems are used to facilitate servicing of asynchronous communications events. A multiport system, such as an open collector multiport system, receives from one of a plurality of source components an asynchronous communications event directed to a target component coupled to the plurality of source components. The multiport system is controlled to provide, at any given time, a communications path between a plurality of ports of the multiport system to service the asynchronous communications event. One or more multiport systems are used to forward the event from the source to the target.08-06-2009
20090232141Using a Hash Value as a Pointer to an Application Class in a Communications Device - Systems and methods according to the present invention provide techniques for improving the efficiency of routing for requests in devices, e.g., mobile devices.09-17-2009
20090225759HIERARCHICAL METERING IN A VIRTUAL ROUTER-BASED NETWORK SWITCH - Methods and systems are provided for applying metering and rate-limiting in a virtual router environment and supporting a hierarchy of metering/rate-limiting contexts per packet flow. According to one embodiment, multiple first level metering options and multiple second level metering options associated with a hierarchy of metering levels are provided. A virtual routing engine receives packets associated with a first packet flow and packets associated with a second packet flow. The virtual routing engine performs a first type of metering of the first level metering options on the packets associated with the first packet flow using a first metering control block (MCB) and performs a second type of metering of the second level metering options on the packets associated with the first packet flow and the packets associated with the second packet flow using a second MCB.09-10-2009
20090257436METHOD, SYSTEM AND ACCESS DEVICE FOR IMPLEMENTING SERVICE CONFIGURATION - An access device, a system and a method for implementing service configuration are disclosed. The method includes: identifying, by an access device AN, an operation mode of a CPE according to a result of a handshake negotiation performed between the line port of the access device CN and the CPE, and selecting a corresponding preset service template according to the operation mode of the CPE, and then configuring the line port according to the service template selected, thereby implementing the self adaptation of the ATM mode and PTM mode of the CPE. With the technical solution of the invention, when VDSL2service is provided, the service may automatically access subscribers of ADSL ATM mode and subscribers of VDSL PTM mode simultaneously, and an automatic configuration and management may be realized for all the service configurations in different modes, and thus the operation complexity may be simplified, and the operation cost may be lowered.10-15-2009
20090116491COMMUNICATION SYSTEM, COMMUNICATION DEVICE, AND METHOD FOR CONTROLLING TRANSPORT RESOURCE THEREOF - A communication system capable of making a communication utilizing a plurality of transport resources by exchanging control signals between communication devices. A single control signal transmitted and received between the communication devices contains information indicating that a transport resource is being utilized for the communication. The communication device comprises transport resource management section 05-07-2009
20090046721MERGING MULTIPLE NETWORK DATA FLOWS - The disclosure presents techniques for merging multiple data flows in a network such as a Passive Optical Network (PON). The PON comprises an interface module and network nodes connected to the interface module via an optical fiber link. Each network node further serves client devices. The client devices request multiple data flows, requiring the interface module to serve multiple data flows to a network node for delivery to the devices. The interface module merges received data flows to permit multiple flows to be processed by a single segmentation and reassembly (SAR) engine, reducing hardware cost and complexity within the node. However, subunits associated with different data flows within a merged data flow are not interleaved with one another. Instead, the subunits associated with an original unit of information are transmitted contiguously within the merged data flow, facilitating identification and reassembly of the subunits for a particular microflow.02-19-2009
20100189109CLOCK SUPPLY DEVICE AND TRANSMISSION DEVICE - A clock supply device includes a receiving unit configured to receive frame synchronization packets from an asynchronous network and generate timing signals; a phase comparing unit configured to perform phase comparison by comparing phases of the timing signals generated by the receiving unit and clock signals generated by an internal oscillating unit; a phase variation detection unit configured to detect a frequency variation of the frame synchronization packets based on a trend of a variation amount of a phase difference that is obtained by performing a statistical process on count values obtained as a result of the phase comparison; and an oscillating frequency control unit configured to control an oscillating frequency of the internal oscillating unit when the phase variation detection unit detects the frequency variation of the frame synchronization packets.07-29-2010
20110058558NETWORK CONTROL DEVICE AND NETWORK CONTROL METHOD - A network control device includes a command receiver receiving a command with respect to operation policies of a plurality of maintenance associations (MAs) that construct a single call, a message generator generating a message including information about the operation policies of the plurality of MAs according to the command, and a message transmitter transmitting the message to a neighboring network control device.03-10-2011
20090034532CONNECTION ROUTING BASED ON LINK UTILIZATION - A method and system for connection routing based on link utilization. A link utilization limit is accessed at a node of a network. The link utilization limit is compared to a utilization of a link coupled to the node. If the utilization of the link is greater than the link utilization limit, then the link is excluded from a virtual circuit.02-05-2009
20100220730EFFICIENT PRUNING OF VIRTUAL SERVICES IN BRIDGED COMPUTER NETWORKS - In one embodiment, a bridge in a computer network may execute a spanning tree protocol (STP) for network topology and a registration protocol for traffic control of virtual connections (e.g., EVCs) at the bridge. For any gateway ports of the bridge inter-connected with a provider network, the bridge may generate “fake” received registration protocol join messages for a particular virtual connection at the gateway port. The bridge may then either i) propagate the join messages, in response to the gateway port being in a forwarding state according to the STP, on other forwarding ports of the bridge, or ii) in response to the gateway port not being in a forwarding state, block propagation of the join messages to other ports of the bridge.09-02-2010
20090041022FRAME RELAY SWITCHED DATA SERVICE - A new type of data transport service which uses a frame relay layer 2 data link connection identifier (DLCI) to select among various service types, feature sets, and/or closed user groups (CUGs). A layer 3 address may be extracted from a layer 2 frame, and the layer 3 address information may be used to route a data packet over a packet-switched network according to the service classes, feature sets, and/or CUGs selected. At the destination, the layer 3 data packet may again be enclosed in a layer 2 frame with a DLCI indicating the service classes, features sets, and/or CUGs. Because the use of conventional permanent virtual circuits (PVCs) is not required in aspects of the invention, new methods of measuring and managing network traffic are presented.02-12-2009
20090252169SYSTEM FOR SUPPORTING COMMUNICATIONS AMONG ATM DEVICES, DEVICE FOR SUPPORTING DATA TRANSMISSION, METHOD FOR SENDING DATA, AND COMPUTER PROGRAM PRODUCT - A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.10-08-2009
20080285567Method and Related Apparatus for Setting Packet Headers in a Wireless Communications System - A method for setting a header, having a header extension type field, of a protocol data unit in a radio link control layer of a wireless communications system includes configuring a “use of the special value of the header extension type field” mode, and setting the header extension type field to indicate that a last octet of the protocol data unit is a last octet of a service data unit when the last octet of the protocol data unit is the last octet of the service data unit and there is no concatenation of service data units inside the protocol data unit.11-20-2008
20100322249DISCOVERING PATH MAXIMUM TRANSMISSION UNIT SIZE - Intermediate network devices, such as routers, are configured to discover a maximum transmission unit (MTU) for a path between two network endpoints by removing data from packets when the packet size exceeds a link MTU to a next hop. An example intermediate network device includes a forwarding engine to determine an interface card through which to forward a received packet and to determine a link MTU for a link corresponding to the interface card, wherein the received packet comprises a header and a payload, the header indicating not to fragment the packet, and a PMTU determination module to determine whether a size of the received packet exceeds the link MTU, and to remove a portion of data from the payload of the packet, discard the removed portion, and adjust the header of the packet according to the removed portion when the size of the received packet exceeds the link MTU.12-23-2010
20110128963SYSTEM AND METHOD FOR VIRTUAL CHANNEL COMMUNICATION - A system and method for communicating over a single virtual channel. The method includes reserving a first group of credits of a credit pool for a first traffic class and a second group of credits of the credit pool for a second traffic class. In addition, a first and second respective groups of tags are reserved from a tag pool for the first and second traffic class. A packet may then be selected from a first buffer for transmission over the virtual channel. The packet may include a traffic indicator of the first traffic class operable to allow the packet to pass a packet of the second traffic class from a second buffer. The method further includes sending the packet over the virtual channel and adjusting the first group of credits and the first group of tags based on having sent a packet of the first traffic class.06-02-2011
20090067433METHOD AND SYSTEM FOR CONTROLLING A BACK-UP NETWORK ADAPTER IN A LOCAL COLLECTION FACILITY FROM A REMOTE FACILITY - A system and method suitable for processing television signals includes a local collection facility that has a plurality of receivers receiving a plurality of channel signals a plurality of encoders generating a first plurality of encoded signals from the plurality of channel signals, a multiplexer multiplexing the first plurality of encoded signals at a multiplexer to form first multiplexed signals, an ATM switch forming a primary ATM circuit between the local collection facility and the remote facility, and an ATM network adapter forming first ATM signals from the multiplexed signals and communicating the first ATM signals to a remote facility through the primary ATM circuit and the ATM switch. The system also includes a remote facility that includes a monitoring system generating control signals to tear down the primary ATM circuit and communicating the control signal to tear down the primary ATM circuit to the local collection facility. The ATM switch tears down the primary ATM circuit in response thereto. The multiplexer multiplexes a second plurality of encoded signals at the multiplexer to form second multiplexed signals. The ATM network adapter and the ATM switch forms a secondary ATM circuit between the local collection facility and the remote facility and forms secondary ATM signals from the second multiplexed signals. The ATM adapter communicates the secondary ATM signals to the remote facility through the secondary ATM circuit. The remote facility generates an output signal at the remote facility in response to the secondary ATM signals.03-12-2009
20110075669AUDIO MIXER AND METHOD - A telecommunications system includes a first node having audio and video streams. The system includes a second node having only an audio stream. The system includes a mechanism for forming a call between the first node and the second node so the first node and the second node communicate their audio streams with each other. The forming mechanism is in communication with the first and second nodes. Preferably, a third node can communicate with the first and second nodes through the forming means. A method for forming a telecommunications call including the steps of calling from a first node having audio and video streams a second node having only an audio stream. There is the step of forming a call between the first node and the second node so the first node and the second node communicate their audio streams with each other.03-31-2011
20110128964ATM CONNECTION BAND CONTROL METHOD AND CONTROL SYSTEM - An asynchronous transfer mode (ATM) connection band control system, in an ATM network, may include a first memory, a second, different memory, and a connection-setting control portion. The first memory may store, in a buffer control memory, band acquiring data of a connection, the first memory preliminarily acquiring a connection band for the connection, irrespective of the connection being a switched virtual connection (SVC) or a permanent virtual connection (PVC). The second, different memory may store acquired band data of a currently established connection, irrespective of the currently established connection being a PVC or an SVC. The connection-setting control portion may control a setting of the currently established connection, where a band for the currently established connection, irrespective of the currently established connection being a PVC or an SVC, is preliminarily set as the band acquiring data.06-02-2011
20100027548COMMUNICATING IN VOICE AND DATA COMMUNICATIONS SYSTEMS - A data and voice communication system includes communication between a line card and an accelerator card. Voice, data, and control traffic is received from the line card and is transmitted to the accelerator card via a physical link having separate voice, data, and control logical channels. The separate voice, data, and control logical channels are represented by labeled data packets.02-04-2010
20100054254Asynchronous data transmission - A method of, and system for, asynchronous data transmission are disclosed which have application in the transmission of stock exchange data or replicated memory data. Later transmitted data (03-04-2010
20100054255Home Network Server in an Operator Network - The invention discloses a Home Virtual Private Network server (03-04-2010
20110075670SYTEMS AND METHODS FOR MULTI-LAYER INTERWORKING - Systems, modules, computer-readable mediums and methods for multi-layer interworking are provided. An identified traffic path is selected from one or more traffic paths. The identified traffic path is selected based on information indicative of traffic path parameter information associated with the identified traffic path relative to traffic path parameter information associated with the other traffic paths. A transport trail is identified from one or more transport trails. Whether the identified transport trail from one or more transport trails is suitable for assignment is determined. The determination is made based on information indicative of the transport trail parameter information associated with the identified transport trail relative to transport trail parameter information associated with the other transport trails. The selected identified traffic path is assigned to the identified transport trail if the identified transport trail is determined to be suitable for assignment.03-31-2011
20110149975STREAMING SEGMENTATION AND REASSEMBLY IN ASYNCHRONOUS TRANSFER MODE COMMUNICATIONS - Systems, methods, and apparatuses are provided that enable streaming of ATM cells between a transmit/receive data processing application and a transmission convergence function. Data to be segmented into an ATM cell is received at a SAR engine, and provided to a transmission convergence function, with the first cells transmitted to the transmission convergence function before the SAR function receives an end-of-packet indication from the optimization engine. Data received at a transmission convergence function is placed in a received packet queue at the SAR function, with packets provided to an application after a start-of-packet indication is received, and before an end-of-packet indication is received, at the SAR function.06-23-2011
20100254390METHOD OF AND APPARATUS FOR STATISTICAL PACKET MULTIPLEXING - A method of managing transfer of packets in a packet digital communications network wherein at least some of the packets comprise a plurality of segments is disclosed. The method comprises providing a buffer (10-07-2010
20110149976DISTRIBUTING CELLS ON AN IMA LOGICAL LINK HAVING INACTIVE IMA SUB-LINKS - The invention is directed to a method and system for efficiently distributing Inverse Multiplexing over ATM (IMA) filler cells on IMA logical links having inactive or unusable IMA sub-links. Inactive IMA sub-links are identified during round-robin distribution of ATM data cells to active IMA sub-links. Predefined IMA filler cells are transmitted simultaneously on the identified inactive IMA sub-links when an ATM data cell is transmitted on an active IMA sub-link, thereby reducing the delay between transmitting ATM data cells.06-23-2011
20100020803LAYER 1 FRAME CONSTRUCTION01-28-2010
20100020802DEVICE FOR PERFORMING IP FORWARDING AND ATM SWITCHING - A communication node contains intelligence for directing both internet protocol (IP) packets and Asychronous Transfer Mode (ATM) cells toward their destinations. The ATM cells and IP packets may be received within a common data stream. The respective devices process the ATM cells and IP packets to direct the cells and packets to the proper output ports towards their destinations. The device is capable of performing policing and quality of service (QOS) processing on both the ATM cells and the IP packets.01-28-2010
20090028158SYSTEMS AND METHODS FOR MULTI-PAIR ATM OVER DSL - At a transmitter, an ATM cell stream is received from the ATM layer and is distributed on a cell-by-cell bases across multiple DSL PHY's. At the receiver, the cells from each DSL PHY are re-combined in the appropriate order to recreate the original ATM cell stream, which is then passed to the ATM layer.01-29-2009
20100054256SYSTEMS FOR SUPPORTING PACKET PROCESSING OPERATIONS - Several systems for supporting packet processing are described. A first system supports virtual routing of a packet. A second system supports de-multiplexing of a packet. A third system supports advanced MPLS label processing of a packet.03-04-2010
20090116490METHOD AND APPARATUS FOR PACKET SEGMENTATION AND CONCATENATION SIGNALING IN A COMMUNICATION SYSTEM - The invention relates to a data packet structure for conveying data of service data units (SDU) using protocol data units (PDU). The data packet comprise a data packet payload comprising at least one protocol data unit (PDU), wherein a protocol data unit (PDU) comprises a service data unit (SDU) or a fragment of a service data unit; and a data packet header comprising an indicator (FFF, SFF) indicating whether or not the data packet payload begins with a protocol data unit (PDU) being a fragment of a service data unit and whether or not the data packet payload ends with a protocol data unit (PDU) being a fragment of a service data unit.05-07-2009
20090154466Techniques for Migrating a Point to Point Protocol to a Protocol for an Access Network - Techniques for managing a persistent session associated with a particular Media Access Control (MAC) include determining at a broadband remote access server whether an elapsed time since a data packet is received with the particular MAC address exceeds a threshold time. If so, then point-to-point protocol (PPP) control data is sent in a data link protocol payload that is encapsulated in a data packet with an Ethernet destination field that indicates the particular MAC address. The PPP control data indicates a request for an echo. It is determined whether a data packet with the particular MAC address in an Ethernet source field is received within a particular time interval. If not, then a session associated with the particular MAC address is terminated. These techniques allow PPP control plane functionality while utilizing IP over Ethernet for the data plane.06-18-2009
20090175278EFFICIENT TRANSPORT OF TDM SERVICES OVER PACKET NETWORKS - A method for data communications includes receiving a time-division-multiplexed (TDM) input signal carrying a payload comprising data and determining whether the data comprise synchronous or non-synchronous data. A first encapsulation scheme is selected if the data comprise synchronous data, and a second encapsulation scheme is selected if the data comprise non-synchronous data. The data are encapsulated for transmission over a packet-switched network in accordance with the selected encapsulation scheme.07-09-2009
20110090910ENHANCED VIRTUAL SWITCH - A system and method for providing network connectivity to a host, involving creating a virtual switch on the host, specifying at least one data link attribute of the virtual switch, creating a plurality of virtual network interface cards (VNICs) on the host, associating each of the plurality of VNICs with the virtual switch, and assigning the at least one data link attribute of the virtual switch to each of the plurality of VNICs, where the virtual switch is connected to a physical network interface card (NIC) associated with the host, where each of the plurality of VNICs is associated with a different one of a plurality of execution environments, where the plurality of execution environments is located on the host, and where the plurality of VNICs is located on the host.04-21-2011
20110317708QUALITY OF SERVICE CONTROL FOR MPLS USER ACCESS - A method of associating a Quality of Service priority with a Service Access Point (SAP) is disclosed. The method provides for provision of Quality of Service priorities on incoming data packets as per the configuration specified in the SAP associated with the data packet. The method allows for a configuration in which the incoming packet will specify its own QoS priority. The provisioning of Quality of service on a per SAP basis allows for a finer granularity of prioritizing of packets over Quality of Service methods known in the art.12-29-2011
20120027020MULTIPLEXING TRANSMISSION SYSTEM, MULTIPLEXING APPARATUS, DEMULTIPLEXING APPARATUS AND A MULTIPLEXING TRANSMISSION SYSTEM - A multiplexing apparatus stores fixed length data into which information signals supplied from channels are divided; determines an output channel by selecting the each channel cyclically; and acquires the fixed length data from the output channel based on a channel multiplexing ratio number to store the fixed length data in a payload in turn. Also, the multiplexing apparatus adds assignment information, which includes a channel arrangement of each channel of the fixed length data stored in the payload, to the payload. Further, the multiplexing apparatus creates a multiplexing frame by using the payload to transmit to a transmission channel. A demultiplexing apparatus detects the assignment information from the payload of the multiplexing frame received to the transmission channel; and creates distribution information for distributing the fixed length data to each channel based on the assignment information. Also, the demultiplexing apparatus detects the fixed length data from the payload to distribute the fixed length data to each channel based on the distribution information. Further, the demultiplexing apparatus couples the fixed length data to reproduce the information signal.02-02-2012
20090135829ACCESS NETWORK SYSTEM, ACCESS EQUIPMENT, ARP PROXY METHOD AND AN IP BRIDGING FORWARDING METHOD - An access network system, an address resolution protocol proxy method and an IP bridging forwarding method for the access network system are disclosed. The access network system comprises: one or more access network edge nodes that connect to one or more access nodes; one or more access nodes that connect to user terminals to the access network, and a reference point that is introduced between two adjacent access nodes for the access nodes interconnection. With this system, the multi-cast or broadcast flow in the network can be reduced and the communication delay and path can also be decreased. Therefore the communication bottleneck brought by BRAS/BNG can be avoided.05-28-2009
20110103389METHOD AND APPARATUS FOR SWITCHING TRAFFIC BETWEEN VIRTUAL MACHINES - Systems and methods for switching traffic include a physical machine running source and destination virtual machines (VMs). The source VM issues a data unit addressed to the destination VM. The physical machine has a physical network interface in communication with the VMs. The physical network interface transmits a sub-packet, which includes a partial portion of the data unit, over a network while a majority portion of the data unit remains at the physical machine. A network switch on the network receives the sub-packet transmitted by the physical network interface. The network switch performs one or more OSI Layer 2 through Layer 7 switching functions on the sub-packet and returns that sub-packet to the physical network interface. The physical network interface identifies the data unit stored in the memory in response to the sub-packet returned from the network switch and forwards the identified data unit to the destination VM.05-05-2011
20100290471SYSTEMS AND METHODS FOR MULTI-PAIR ATM OVER DSL - At a transmitter, an ATM cell stream is received from the ATM layer and is distributed on a cell-by-cell bases across multiple DSL PHY's. At the receiver, the cells from each DSL PHY are re-combined in the appropriate order to recreate the original ATM cell stream, which is then passed to the ATM layer.11-18-2010
20100208737SYSTEMS AND METHODS FOR MULTI-PAIR ATM OVER DSL - At a transmitter, an ATM cell stream is received from the ATM layer and is distributed on a cell-by-cell bases across multiple DSL PHY's. At the receiver, the cells from each DSL PHY are re-combined in the appropriate order to recreate the original ATM cell stream, which is then passed to the ATM layer.08-19-2010
20090116492DATA TRANSFER SYSTEM AND METHOD - A transmission source bridge collects packets sent from nodes connected to a serial bus in accordance the IEEE1394 Standards, into one packet in an order they are to be transmitted and then sends them onto an ATM network, so that a transmission destination bridge receives this packet and divides it into a plurality of smaller packets and transfers them, in the order they were sent, to nodes connected to the serial bus in accordance with the IEEE1394 Standards.05-07-2009
20090175277System and method for eliminating malformed packets in a multimedia-content digital transport stream - A multimedia-source system comprises a reconstruction block for counting the units of an incoming digital packet intended to comply with a digital transport stream standard, the digital transport stream standard requiring fixed-length digital packets with each digital packet containing a standard number of units, to determine at least if the unit count matches the standard number of units; and a packet transfer block coupled to the reconstruction block for transferring the digital packet to a multimedia destination if the reconstruction block determines that the unit count matches the standard number of units.07-09-2009
20120224582Method and System for Asymmetric Operation in a Network Node in an Energy Efficient Network - An Ethernet network comprising multi-rate link partners that may be operable to communicate symmetrically and/or asymmetrically via any of a plurality of channels. The multi-rate link partners may monitor one or more factors that may affect their power consumption and/or energy efficiency. During operation, an uplink and/or downlink communication rate may be configured, based on the monitoring, to enable asymmetrical data rate operation. The monitored factors may comprise prior or current data rates, bit error rate, packet error rate, latency, queued data and/or tasks, for example. The multi-rate link partners may comprise a twisted pair PHY, an optical PHY or a backplane PHY. In order to reduce power consumption and/or improve energy efficiency, one or more of the uplink communication rate and/or the downlink communication rate may be lowered. The power consumption may be reduced for a multi-rate PHY, a host computer and/or a MAC controller.09-06-2012
20080212589METHOD AND NETWORK APPARATUS FOR CARRYING MULTIPLE SERVICES - A method for carrying multiple services includes: transmitting services to bearer channels at a physical port of an XDSL chipset according to different requirements of the services on service latency; and mapping the services on the bearer channels into different latency paths according to preset relations between the bearer channels and the latency paths. Network apparatus for carrying multiple services are also provided. The embodiments of the present invention enable different services to be transmitted on different latency paths, by which the requirements of different services on both transmission latency and transmission quality are fulfilled. The embodiments of the present invention also remedy the defect in ADSL and VDSL technologies that XDSL chipset does not support multiple latency paths, which improves the application of XDSL technology and further improves user satisfaction.09-04-2008
20130156039METHOD OF PERFORMING IP FRAGMENTATION AND RELATED WIRELESS NETWORK SYSTEM - A wireless network system includes a transmitting end and a receiving end which adopt a specific communication protocol for data transmission. Before transmitting a plurality of data packets, the receiving end detects a maximum transmission unit of the specific communication protocol and generates a corresponding synchronization signal. The transmitting end adjusts its cutting rule according to the synchronization signal and segments the plurality of data packets into a plurality of sub data packets, which are then transmitted to the receiving end for packet reassembly.06-20-2013

Patent applications in class Message transmitted using fixed length packets (e.g., ATM cells)

Patent applications in all subclasses Message transmitted using fixed length packets (e.g., ATM cells)