Abstract: A Real-Time Protocol (RTP) source node of a network operates to send a first data packet of a first size to a destination node over a path of the network that includes a plurality of intermediate nodes, at least one of the intermediate nodes having a maximum transmission unit (MTU) size smaller than the first size such that fragmentation of the first data packet occurs. The destination node sends back to the source node a RTCP report that includes a number of fragments received and a largest minimum data packet size. In response, the source node sends subsequent data packets having a second size less than or equal to the largest data packet size of the fragments. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A data compression method and system is disclosed. In one embodiment, the data compression method includes receiving a data packet. Also, the method includes compressing the data packet using a confirmed compression history, wherein the confirmed compression history includes previously acknowledged data packets. Further, the method includes sending a compressed data packet to a downstream device. Moreover, the method includes detecting a delivery acknowledgement associated with the compressed data packet. Continuing, the method includes updating the confirmed compression history by incorporating the data packet information into the confirmed compression history based upon receipt of the delivery acknowledgement.

Abstract: A wireless communication system, method for transmitting a frame, and computer program product thereof are provided. The system comprises a base station and a subscriber station. The frame comprises a MAP area and a user area. The MAP area comprises a broadcast test area. The method and the computer program product thereof operate: the base station initially transmitting a first burst in the user area by a first transmission module; determining whether the first burst that is transmitted by the first transmission module fits a special situation; and if yes, the base station transmitting test information in the broadcast test area by a second transmission module or asking the subscriber station to transmit data by a second transmission module.

Abstract: A network device and a method of handling a frame in a network device defining a common header for each rule in a rules table of a search engine, wherein the common header comprises a source port specifying a corresponding rule to be applied to a port or ports, and a frame format specifying a format applied to the corresponding rule. A port receives a frame, with the frame having multiple field values. A pre-parser parses the received frame to obtain the field values and corresponding slices. A search engine receives the slices and determines matches between the slices and the common header of each rule in the rules table. A policy table performs indexing based on the determined matches to obtain an action entry. An action resolution takes an action based on the obtained action entry.

Abstract: A method is provided of determining a layer-2 topology of an IT infrastructure which includes layer-2 interconnect devices having ports. A list of layer-2 interconnect devices available in the IT infrastructure is obtained. Uplink and non-uplink ports of layer-2 interconnect devices are determined. All the, or a subset of the, layer-2 interconnect devices are assigned to one initial group. The initial group is iteratively refined by selecting a layer-2 interconnect device and assigning all layer-2 interconnect devices reachable via its non-uplink ports to new subgroups.

Abstract: A multi-level lookup table includes a plurality of search levels with each search level including a plurality of subtrees, each subtree representing a plurality of nodes. A search of the multi-level lookup table for an entry corresponding to a search key results in a value stored in an entry associated with the node in a subtree. A default value is associated with the root of the subtree. Multiple entries for the subtree can store the default value. To minimize route update time, the default value associated with the subtree is stored in a single location. Instead of storing the default value in multiple entries, each entry stores a use default indicator to indicate that the default value stored in the single location is to be used. To further reduce the number of locations to modify to update the default route, the single location can store an inherit indicator to indicate that the default value for the subtree is inherited from another subtree.

Abstract: A method of forming a digital packet stream, the stream including transport packets. The method can include receiving a packet ID in a transport stream, determining if the packet ID includes a video ID, determining if a coded video frame starts a transport packet, and if a coded video frame starts a transport packet, inserting an Internet protocol/user datagram protocol (IP/UDP) header ahead of a transport packet header. The received transport stream can be an MPEG-2 transport stream. A method of forming a digital packet stream can include receiving a packet ID, determining if the packet ID includes a video ID, determining if a coded video frame starts a transport packet; determining a priority of the video frame, and inserting an IP/UDP header ahead of a transport packet header.

Abstract: An apparatus is provided for efficiently allocating a transmission period in a wireless network system. An access point (AP) transmits a PSMP frame indicating a downlink period provided to each station (STA) and a minimum amount of an uplink period allocated to each STA, and at least one sub PSMP frame indicating an uplink period additionally provided for an STA that transmitted a resource request message for remaining queued data in the uplink period indicated by the PSMP frame. If the uplink period indicated by the PSMP frame is insufficient to transmit the queued data, the STA transmits a data unit including a part of the queued data and a resource request message for the remaining queued data in the uplink period. After transmitting the resource request message, the STA receives the sub PSMP frame after the full period indicated by the sub PSMP frame, and transmits the remaining queued data to the AP in the uplink period indicted by the sub PSMP frame.

Abstract: A method is provided for efficiently allocating a transmission period in a wireless network system. An access point (AP) transmits a PSMP frame indicating a downlink period provided to each station (STA) and a minimum amount of an uplink period allocated to each STA, and at least one sub PSMP frame indicating an uplink period additionally provided for an STA that transmitted a resource request message for remaining queued data in the uplink period indicated by the PSMP frame. If the uplink period indicated by the PSMP frame is insufficient to transmit the queued data, the STA transmits a data unit including a part of the queued data and a resource request message for the remaining queued data in the uplink period. After transmitting the resource request message, the STA receives the sub PSMP frame after the full period indicated by the sub PSMP frame, and transmits the remaining queued data to the AP in the uplink period indicted by the sub PSMP frame.

Abstract: An apparatus is provided for allocating a transmission period in a wireless network system. An access point (AP) transmits a PSMP frame indicating a downlink period and an uplink period allocated to each station (STA), and at least one sub PSMP frame indicating an allocated downlink period for at least one of a retransmission of downlink data and a transmission of an ACK indicating successful receipt of uplink data. After exchanging data with the AP in the downlink and uplink periods indicated by the PSMP frame, an STA receives the each sub PSMP frame, and performs at least one of a reception of the retransmitted downlink data and a reception of the ACK in the downlink period indicated by the each sub MAP frame.

Abstract: PLC modems and a PLC communication system that includes the PLC modems receive a multicast packet from a video server of a multicast group. When a MAC address table is set therein, the PLC modems and the PLC communication system convert the multicast packet into a unicast packet and transmit the converted packet to a power line. When no MAC address is set, the PLC modems and the PLC communication system transmit the multicast packet to the power line.

Abstract: An optical network packet classification architecture is disclosed that addresses the packet classification requirements for OC-768 optical routers and beyond. The herein disclosed system is used for ultra-high speed packet classification of optical data at either the serial data stream level for maximum performance, or after it has been converted into parallel words of data. The presently preferred embodiment of the invention provides a system that operates in the receive path, where electronic data are provided by the optical interface to the data framer. The invention incorporates unique features into a traditional optical data framer chip and relies on a complex ASIC to permit the user to differentiate between up to 10,000 different patterns at ultra-high speeds. One purpose of the general purpose system disclosed herein is to eliminate the need for costly and power consumptive content addressable memory systems, or customer pattern specific ASICs, to perform network packet classification.

Abstract: The present invention provides a multicast source control method, which comprises: creating multicast source authentication information; a management platform of the multicast source authentication information dynamically updating said multicast source authentication information in accordance with restriction on multicast source; controlling multicast message sent from the multicast source in accordance with said multicast source authentication information. The present invention also provides a multicast source control system comprising a master multicast source authentication server, a group of slave multicast source authentication servers, and a predefined node.

Abstract: The present invention is an address management system (14) of an image forming apparatus comprising multi send function to be able to send the same data at once by using multiple transmitting means at a unit of a group plural addresses are entered comprising: an address entry means (15) for entering addresses to the group, an original group selection means (16) for selecting an original group to be copied from the existing groups which addresses are entered by the address entry means, a copy group selection means (17) for selecting a copy group to copy the addresses of the original group selected by the original group selection means.

Abstract: The invention reduces addressing overhead for communication using a layered communication protocol. An improvement of the invention maintains security for the addressing information.

Abstract: The invention realizes, utilizing a call control process according to SIP, detection of the condition of in terms of capableness/incapableness of receiving of the destination station and notification of restoration to a condition capable of receiving thereby eliminating troublesome operations such as telephonic communication etc.

Abstract: Methods and apparatus for managing subscriber profiles in a network environment are described herein. In one embodiment, the method includes receiving a connection request from a subscriber, wherein the subscriber is associated with a first-level profile identifier, and wherein more than one subscriber can be associated with the first-level profile identifier. The method also includes determining lower-level profile identifiers using the first-level profile identifier. The method further includes creating a connection for the subscriber, where the connection enables forwarding of packets, and where the forwarding of the packets is based on the associated profile identifiers.

Abstract: An electronic mail/messaging system is operated by compiling information associated with an attachment for an electronic mail at a source. The information includes initial information and descriptive information. The initial information is sent to a destination. A determination is made whether the destination has a file that matches the attachment based on the initial information. The attachment is sent to the destination if the destination does not have the file. The descriptive information is sent to the destination if the destination has the file. A determination is made whether the file matches the attachment based on the descriptive information. The attachment is sent to the destination if the file does not match the attachment based on the descriptive information.

Abstract: A system and method and method for filtering communications at a network interface controller is provided. The network interface controller is coupled to a baseboard management controller through a sideband communications channel. The network interface controller filters packets to the baseboard management controller on the basis of the address within the packet that identifies the device that caused the packet to be generated. The network interface controller transmits to the baseboard management controller only those packets that were generated in response to a command issued by the baseboard management controller.

Abstract: Roughly described, a network interface device is assigned a maximum extent-of-search. A hash function is applied to the header information of each incoming packet, to generate a hash code for the packet. The hash code designates a particular subset of the table within which the particular header information should be found, and an iterative search is made within that subset. If the search locates a matching entry before the search limit is exceeded, then the incoming data packet is delivered to the receive queue identified in the matching entry. But if the search reaches the search limit before a matching entry is located, then device delivers the packet to a default queue, such as a kernel queue, in the host computer system. The kernel is then responsible for delivering the packet to the correct endpoint.

Abstract: Via use of a shared data bus, a processor system offloads processing tasks. For example, a processor system communicates over a respective data bus with a data communication controller. After notifying the data communication controller of a particular block of data to retrieve, the processor system relinquishes control of the respective data bus so that the data communication controller can control the data bus and store a block of data in a specified memory location using direct memory access techniques. Upon receiving a notification of completion of storing the data block by the data communication controller, the processor system regains control of the respective data bus and notifies a data forwarding circuit to: i) partition the block of data into data packets, ii) apply respective headers to the data packets based on the header information received from the processor system, and iii) forward the data packets to the respective destination.

Abstract: A network processor for determining one or more network operations to be performed on a packet of data in a network comprises processing circuitry and protocol indicator circuitry. The packet of data contains information populating a plurality of protocol header fields. Moreover, the protocol indicator circuitry comprises a plurality of memory elements, each memory element associated with a protocol header field in the plurality of protocol header fields. The processing circuitry determines the one or more network operations to be performed on the packet of data at least in part by addressing one or more lookup tables with the contents of a subset of the plurality of protocol header fields in the packet. This subset is determined by reference to the memory elements in the protocol indicator circuitry. Each memory element is capable of being programmed to indicate whether the associated protocol header field is to be utilized by the processing circuitry in addressing the one or more lookup tables.

Abstract: A communications system for transmitting packets includes a network. The system includes a plurality of P, PE and CE devices in communication with the network. The system includes a controller which creates an LSP through the PE devices defining a path such that the LSP starts and ends at the same PE node. A method for transmitting packets. The method includes the steps of creating an LSP through PE devices in communication with the network defining a path such that the LSP starts and ends at the same PE node. There is the step of sending the packets along the path.

Abstract: Methods for performing exact search string matches in the data plane of a network processor. The methods employ a two-stage string search mechanism to identify the existence of a search string from a set S in a packet payload. A first pre-processing stage identifies a potential search string match and a second analysis stage determines whether the first stage match corresponds to an exact string match. The first stage is implemented using hash values derived from at least one of search strings in set S or sub-strings of those search strings. In one embodiment, a plurality of Bloom filters are used to perform the first pre-processing stage, while in other embodiments various CAM-based technique are used. Various TCAM-based schemes are disclosed for performing the second analysis stage. The methods enable packet payloads to be searched for search strings at line-rate speeds.

Abstract: The present invention provides a method for translating network addresses for multiple network interfaces. The method includes accessing information indicative of a plurality of first addresses associated with a plurality of first network interfaces and forming a second address associated with the plurality of first addresses.

Abstract: A method and electronic device (104) for processing incoming packets in a communication network (100) is disclosed. The method includes filtering (302) incoming packets in real time by using a recent offender list (212). The method also includes classifying (304) the incoming packets as offending packets and non-offending packets in non-real time.

Abstract: The present invention supports the operation of IS-IS over UDLs without the need for encapsulation of IS-IS PDUs in IP and without the need for a large-scale upgrade of the protocol in the network. The present invention also supports adjacency establishment when the return path from a router at the receive end of a to the router at the transmit end of the unidirectional link is via another unidirectional link.

Abstract: A method, apparatus and computer program product for providing an encrypted multipoint Virtual Private Network (VPN) service is presented. A first packet of a plurality of packets is received at an ingress provider edge (PE) the plurality of packets destined for a remote server in communication with said egress PE router. A lookup for a destination prefix of a first packet is preformed, and a determination made that a next-hop for the first packet is reachable through a mGRE tunnel. A resolution request is sent to a hub to acquire a routable IP address. The packets sent to the hub are encapsulated, and encrypting until a resolution reply is received and until security associations (SAs) have been exchanged. Then a VPN is established between the ingress and egress PEs and is used for all subsequent packets.

Abstract: An apparatus, method, and system are directed to managing a multi-modal communication over a network. In one embodiment, the method, apparatus, and system employ an instant messaging client to perform actions. The actions may include receiving contact information associated with a plurality of communication mediums. The contact information includes contact names and addresses that are integrated into a unified contact store. When a user inputs a character for use in initiating a communication, a dynamic search is performed on the unified contact store. The results of the search may be repeatedly updated based on additional input characters. The results display contact names and addresses, where either the contact name or address includes the input character(s). The user may then select an address, and automatically initiate a communication with a contact name associated with the selected address over a communication medium associated with the address.

Abstract: A keyboard, video and mouse over an Internet Protocol (IP) switch in which the master and target interfaces share the same IP address and access to the target interfaces from the client is via a Transmission Control Protocol/IP network. The master is able to determine into which switch port the target interface is connected by reading media access control address tables of a switch chipset. Such provides immediate association for a target interface, i.e., the Ethernet port number.

Abstract: A number of innovations in the field of networking are disclosed. These techniques use multiple address translation to achieve effective deceptions, emulations, extended private networks and related goals. A further embodiment using a deception network having a number of different actual computer systems each performing emulation where deceived datagrams are routed to an actual machine that is particularly able to perform the desired emulation. The invention allows the emulation to receive a datagram just at it would appear at an external access point, operate on that datagram and return a datagram which is then passed through a deception wall using multiple address translations.

Abstract: Embodiments of the present invention relate to a communication arrangement for distinguishing between network entities having the same address by translating between the same addresses and surrogate addresses using an intermediary network entity.

Abstract: A Network-on-Chip (NoC) system employing an Advanced extensible Interface (AXI) protocol is provided. The NoC includes an NoC router which classifies data transmitted from a plurality of AXI Intellectual Properties (IPs) according to a destination AXI IP, and a network interface (NI) which processes data from the NoC router and provides the processed data to the destination IP. One of the NoC router and the NI includes a plurality of buffers which store data provided from each of the AXI IPs and classified according to each of the AXI IPs, and an interleaving manager which selects buffers, from which data is retrieved, among the plurality of buffers according to an interleaving acceptance capability which is a number of interleaving data that can be accepted by the destination AXI IP.

Abstract: A UPnP device proxy apparatus (103) recognizes a device connected to a network (120) and transmits information regarding the recognized device to UPnP device proxy apparatus (101) The UPnP device proxy apparatus (101) receives the information transmitted from the UPnP device proxy apparatus (103) and transmits, based on the received information, a message indicating that the recognized device is available onto a network 105.

Abstract: A virtual gateway bridges voice and related signaling traffic between multiple endpoints behind the same or different Network Address Translation devices or firewalls or neither. The virtual gateway also serves as a mixer when used in a teleconferencing mode, which handles a number of endpoints that are behind the same Network Address Translation device or firewall or not. In this mode, the virtual gateway mixes packets on its incoming side with other packets on its incoming side so that all outgoing packets include voice (or other) data from all sources. The embodiments herein may be used with Voice over IP (VoIP) connections and applications, as well as other applications in which two or more endpoints are attempting to establish a communications channel and their IP addresses are otherwise not suitable for the communications application.

Abstract: A method and software product for identifying network devices having a common geographical locale. At least some of the illustrative embodiments are methods to associate a geographical location with network data including network edge address data and corresponding pivot data comprising storing network data with corresponding known geographical locations, subsequent to ascertaining new network data checking if pivot data contained therein matches pivot data of said stored network data, and if so associating the new network data with a geographical location previously associated with said matched pivot data.

Abstract: The present invention discloses a method for standardizing medical digital image information based on a desired format.

Abstract: A communication terminal device of the present invention includes: a packet classification section 103 for classifying the packets by stream types and destinations; a packet accumulation section 104-107 for accumulating the packets classified by the packet classification section, so as to be separately stored based on classification by the stream types and the destinations; a QoS control section 113 for determining a transmission start requirement based on a QoS parameter which defines a transmission quality of a stream; a transmission control section 108 for determining whether the transmission start requirement is satisfied; a framing section 109 for generating the frame by concatenating the packets accumulated in the packet accumulation section if it is determined by the transmission control section that the transmission start requirement is satisfied; and a transmission section 110 for transmitting the frame generated by the framing section to a destination communication terminal device.

Abstract: A communication apparatus is connected to a transmission host that generates a header and a packet body data for generating a packet, and performs a packet communication with outside via a network. A receiving unit receives the header and the packet body data from the transmission host in a separate manner. An accumulating unit accumulates received header and packet body data. A packet generating unit generates the packet by coupling accumulated header and packet body data.

Abstract: A method, apparatus, and computer program for re-allocating a hybrid automatic repeat request HARQ process is described where a Node B initiates HARQ re-allocation by sending to a radio network controller RNC a RL PARAMETER UPDATE INDICATION message that includes at least one of a HARQ process allocation for 2 ms non-scheduled transmission NST GRANT information element IE and a HARQ process allocation for 2 ms scheduled transmission ST GRANT IE indicating a value for HARQ process re-allocation. The Node B then receives from the RNC a RL RECONFIGURATION PREPARE or REQUEST message that contains the NST or ST GRANT IE. Responsive to receiving the RL RECONFIGURATION PREPARE or REQUEST message, the Node B sends to the RNC a RL RECONFIGURATION READY or RESPONSE message, then receives from the RNC a RL RECONFIGURATION COMMIT message. Responsive to the COMMIT message, the Node B re-allocates the HARQ process according to the RL RECONFIGURATION PREPARE or REQUEST message.

Abstract: A communication system includes a source PNNI node. The system includes a destination PNNI node. The system includes a network having logical group nodes representing peer groups through which the source node and the destination node communicate by establishing an SPVC using a DTL which identifies the group nodes representing the peer groups with only a partial node ID. A method for communicating includes the steps of forming a DTL which identifies logical group nodes representing peer groups with only a partial node ID. There is the step of establishing an SPVC using the DTL through which a source PNNI node and a destination PNNI node of a network communicate.

Abstract: Provided is a method and apparatus for guaranteeing QoS using end-to-end CAC in an Internet service network. The method includes the steps of: (a) performing a subscriber domain CAC by querying a subscriber DB to determine whether to admit a call based on available bandwidth information of a subscriber when a subscriber terminal requests resource reservation; (b) performing a network domain CAC by querying a resource DB based on a result of the subscriber domain CAC to determine whether a resource required for service can be reserved or not; and (c) updating reserved bandwidth information and available bandwidth information of a subscriber domain in the subscriber DB and resource use information of a network domain in the resource DB when the resource reservation is completed through the steps (a) and (b).

Abstract: An apparatus to output multimedia data and a method of outputting the same, more particularly, an apparatus to output multimedia data and a method of outputting the same, in which multimedia data of all applicable formats is converted into multimedia data formats supported by a media center extender so as to be outputted, the apparatus to output multimedia data including a data processing unit receiving video data and audio data, a control unit converting process paths of the video data and the audio data, an encoding unit encoding the video data and the audio data transmitted according to the converted process paths into a predetermined compression format, and a communication unit transmitting the multimedia data according to the encoded result.

Abstract: A method for communicating data in a network environment is provided that includes receiving a request from an end user for a communications link, the request being used to initiate a communication session. A response is then received that is communicated to the end user in order to establish the communication session, the response being generated by a network node that was selected as a result of a loadbalancing decision. Port-level filtering for the communication session may then be invoked after the response such that separate data and signal pathways are established for selected information associated with the communication session.

Abstract: A method for scheduling and resource allocation in a data communication network (104) that transports data packets for a plurality of sessions is disclosed. The method includes monitoring a packet delay of a session data packet awaiting transport (302). The method also includes re-evaluating a scheduling priority of the session data packet (304). The re-evaluation of the scheduling priority is based on one or more functions of the packet delay.

Abstract: An end-to-end demand between a pair of nodes of a telecommunication network is determined is categorized into a category based on hub assignments for the nodes. A route for the end-to-end demand in the telecommunication network is determined using a hubbing-and-grooming algorithm. The hubbing-and-grooming algorithm constrains which one or more links are eligible to be considered in determining the route based on the category of the end-to-end demand.

Abstract: Methods and systems for providing optimization information for networks.

Abstract: A system for allocating resources, including at least one user terminal operable to determine at least one resource needed by the user terminal and further operable to request a first allocation of the resource. A relaying apparatus is provided which is operable to determine the resource to be allocated and further operable to transmit the determined resource to the user terminal. The user terminal is operable to calculate a cost of the resource allocated by the relaying apparatus, compare the cost with a predetermined reference value based on a changed need for the resource, and further operable to request a second allocation of the resource to the relaying apparatus based on the changed need for the resource.

Abstract: A method and apparatus for communications of a UE using an IP address in a mobile communication system are provided. When the UE moves from an old subnet managed by an old gateway to a new subnet managed by a new gateway, the UE determines whether there are allocated radio resources. In the absence of the allocated radio resources, the UE determines whether an IP-based application service is in progress. If the IP-based application service is in progress, the UE determines to reuse an old IP address in the new subnet. If the IP-based application service is not in progress, the UE determines to use a new IP address in the new subnet. Then the UE sends to the new gateway an RAU request message including an indication indicating whether the old IP address or the new IP address will be used in the new subnet.

Abstract: Provided are an apparatus and a method for providing a concurrent data service to an Mobile Station (MS) through a plurality of heterogeneous networks. In a method for providing a data service to an MS through different wireless networks, the MS measures channel qualities of at least one accessible wireless network and reports the measured channel qualities to an Internet Protocol (IP) packet controller. The IP packet controller selects wireless networks for data transmission on the basis of the reported channel qualities, distributes data destined for the MS, and transmits the distributed data to the selected wireless networks. The selected wireless networks receive the data from the IP packet controller and transmits the received data to the MS. The MS combines and interprets the data received from the selected wireless networks. Accordingly, it is possible to provide a seamless data service to the MS in service environments with a mixture of different wireless communication systems.