Abstract: A client to utilize a translator without changing the DNS server specification, when a service targeted at general clients is provided. An IPv6/IPv4 translator which reciprocally translates packets between IPv6 and IPv4 protocols and is configured so that a DNS query from a client reaches a translator DNS proxy using a dedicated domain effective as a specific DNS domain, the translator DNS proxy specifying an operation by entering a defined character string in FQDN.

Abstract: A system and method for supporting mobile Internet communication is provided which employs a plurality of Routers and a plurality of Mobile Nodes (MNs). Each Router has a unique communication address. Each MN is associated with a home Router. Each Router has an associated Mobile Node Location List identifying each MN for which the Router is the home Router and the communication address of a Router corresponding to a current location of each such MN. Each MN is movable from an old location where the MN communicates with the Internet via one Router to a current location where the MN communicates with the Internet via a different Router. Communication at the current location via the different Router is established by communicating to the MN's home Router the communication address of the different Router as the communication address corresponding to the MN's current location.

Abstract: A method for Layer 2 packet transmission is disclosed, where a corresponding relationship between packet attribute information and public MAC addresses is configured in an access device such that the access device could find a corresponding public MAC address in the corresponding relationship when receiving a packet from a user terminal, replaces the source MAC address with the public MAC address found, and then sends the packet to a convergence layer device. A method for transmission of a Layer 2 packet without character information is also disclosed. The access device needs to obtain the packet attribute information and carry the information in the packet to be sent to the convergence layer device. An access device is also disclosed. As a result, the capacity of the VLAN and the MAC address table items needed for the convergence layer device to convert MAC addresses is greatly decreased.

Abstract: A preferred method and algorithm of compressing IPv6 addresses is presented which ensures smaller memory occupancy for IPv6 routing tables and databases in general (applicability to particular case of databases of the routing protocol OSPF for IPv6 is described). A method and algorithm of comparison of such compressed IPv6 addresses without decompression is presented, a method of comparison that ensures in the majority of cases better comparison performance than for the case of comparing uncompressed IPv6 addresses. Also, a preferred method and algorithm of decompressing IPv6 addresses that were compressed using this preferred format is given, and a method and algorithm of comparison of an uncompressed IPv6 address with a compressed IPv6 address without decompression. The exemplary comparison methods may achieve or exceed comparable performance with the performance of comparing uncompressed addresses. Illustrations for the particular case of the routing protocol OSPF for IPv6 are presented for all cases.

Abstract: An apparatus having a corresponding method and computer program comprises an output circuit to transmit a frame of data, the frame comprising an N-bit address field; an encoder to encode J bits of an N-bit address as an M-bit binary number, wherein M<J and J?N; and an address circuit to place the M-bit binary number and a K-bit binary number in the N-bit address field before the output circuit transmits the frame of data, wherein K?J?M.

Abstract: A communication apparatus capable of using near field communication from various protocols, a communication method for use therewith, and a program for use therewith are provided. NFC communication apparatuses 1 to 3 capsulize an LLC packet of an LLC layer of a data link layer in an MAC packet of an MAC layer, capsulize the MAC packet in a physical layer packet of a physical layer, and transmit and receive the packet. In that case, the maximum length of the LLC packet is limited so as to be smaller than or equal to a length that is determined on the basis of the maximum length of the physical layer packet and the maximum number of MAC packets that can be transmitted continuously from the MAC layer to the LLC layer without making a response. The present invention can be applied to, for example, an IC card system or the like.

Abstract: The invention relates generally to a method of using multiple URL names to identify a first individual, within an Internet connected application executing on a processor. The method involves providing the multiple URL names to multiple domain name servers, where each of the URL names includes a third level domain name and a second level domain name, the third level domain name being a representation of a name of the first individual, where at least one of the plurality of URL names has a file suffix. The method further involves providing a first profile, a second profile, and a third profile of web page(s) accessible using Internet http addressing.

Abstract: A packetized telecommunication network directs a call that is received at a gateway of the network to connect to a feature platform via the network, which performs a service related to the call, such as an authentication service. After the service is performed, the call is redirected to another location in the network to provide a connection between the gateway and the other location, which connection is independent of the feature platform.

Abstract: Method and system of determining addressing in a network environment where client devices are serviced by a number of last hop devices. The method and system including determining client device addresses serviced by the last hop devices as a function of last hop device addresses and client address masks associated with each last hop device.

Abstract: A datagram network is operated by placing a group address in the source address field of the datagram. Nodes within the datagram network forward the datagram in dependence on the contents of the source address field. This provides many of the scalability advantages offered by Multiprotocol Label Switched (MPLS) networks without introducing the overheads caused by connection set-up in MPLS networks. The method can also easily provide different quality of service levels to different types of packets and is especially useful in providing Virtual Private Networks across a shared internetwork such as the public Internet.

Abstract: A method for resolving addressing conflicts between multiple electronically commutated motors communicatively coupled to a system controller is described. The method includes sending a command, from the system controller, to an address and determining, based on responses or lack of a response received at the system controller, a status of the address. The method further includes repeating the sending and determining steps to determine which addresses are not used and which addresses indicate existence of an addressing conflict and sending messages from the system controller to reassign the addresses of at least one of the plurality of motors to an unused address if the status indicates one or more of the addresses have a conflict.

Abstract: A method for ascertaining the use of resources on a network having multiple paths across which data can pass. Each alternative path across the network is provided with a different address or port at a server or anchor point, such that, when a data packet is sent to a particular address it will travel across a certain path. As each path is associated with its own individual port or address a server can deduce from the port or address at which a data packet arrives which path it has traversed. The server can then use its knowledge of network topology and bandwidth availability to make policy enforcement decisions. These decisions may include whether to allow the call to proceed if the initial packet received is a call set up packet or, alternatively, a decision as to which path should be used for all transmissions from the terminal during the session.

Abstract: A system, method, apparatus, and computer program code for facilitating communication via an IP network. According to some embodiments of the present invention, a proxy device is positioned topologically between an IP enabled communication device (e.g., an IP telephone) and an IP based network. The proxy device may establish a remote access connection to the network before or after receiving a request from the IP enabled communication device to communicate to or via the network. The proxy device then facilitates communication between the IP enabled communication device and the network.

Abstract: In one embodiment, a method includes receiving a packet at a network processor, and determining the packet is to be directed to a selected one of a plurality of traffic processors if a tunnel endpoint identifier of the packet is associated with a subscriber terminal. The method further includes determining that the packet is to be directed to the selected one of the plurality of traffic processors if a destination address of the packet is associated with the subscriber terminal. The method still further includes distributing the packet to the selected one of the plurality of traffic processors.

Abstract: A system and method that facilitates client address updating in a communication network is presented. Client address lists are maintained and updated with a single mechanism deployed flexibly across different communication environment boundaries. Network devices update address lists for clients deployed across boundaries of wireless communication environments (e.g., an IEEE 802.11 compliant environment) and wired communication environments (e.g., an IEEE 802.3 compliant environment). Interruptions and delays in information communication due to stale client registration and tracking activities are minimized.

Abstract: An overlay network and scheme for building and using the overlay network are described. As the overlay network is built, new nodes joining the network are connected randomly with other nodes which results in a random graph as the network topology. The network is fully scalable, with each new node providing the same number of network connections for output to other nodes as it consumes when it joins the network. In addition, network coding is implemented at each node to mix packets of data entering each node using random linear functions. The network coding at each node generates new packets that are independent combinations of original data packets entering the node. The new coded packets make the distribution of data to other nodes more efficient and robust.

Abstract: A method for packet routing includes receiving packets over a plurality of virtual private networks (VPNs). Each of the packets includes a respective virtual routing and forwarding (VRF) identifier indicative of a respective VPN over which the packet was transmitted. Each of the packets is assigned to a respective service class having a respective class identifier. For each packet among at least some of the packets, a respective key is computed based on the respective VRF identifier and the respective class identifier of the packet. The respective key is looked up in a configuration table to determine whether the packet is subject to network address translation (NAT). If the packet is subject to NAT, a new address is assigned to the packet, and the packet is forwarded using the new address.

Abstract: Techniques for implementing forwarding in network devices are provided. Proxy addresses are used in place of next hop addresses so that a large routing table is not required. Pairs of proxy IP and MAC addresses can be used to allow this optimization to occur completely transparent to any other device in the network. One or more smaller tables can be utilized in place of a large routing table to more efficiently implement forwarding. Additionally, the technique can be utilized without requiring modification of other hardware devices in the network.

Abstract: A network virtualization layer for an information handling system in which a physical machine coupled to a network is divided into a plurality of logical partitions, each of which has a host system residing thereon. In response to receiving a set command from one of the host systems specifying a data link layer (layer 2) address, the virtualization layer associates the data link layer address with the host system and forwards to the host system data packets specifying the data link layer address as a destination address. Unicast packets are forwarded to the single host system specifying the destination address as an individual MAC address, while multicast packets are forwarded to each host system specifying the destination address as a group MAC address. A host system may also specify a virtual LAN (VLAN) ID, which is used to scope the forwarding of packets to host systems sharing that VLAN ID.

Abstract: Methods and systems provide approaches to start code emulation prevention at a granularity higher than the bit level. By operating at a level other than the bit level, processing capability requirements on both the encoder and decoder side can be reduced. In accordance with one or more embodiments, a start code emulation prevention method looks for data patterns relative to fixed-size data portions larger than single bits. When a particular pattern is found, start code emulation prevention data is inserted to prevent start code emulation. The inserted data is larger than a single bit and, in some embodiments, comprises a byte. When a decoder decodes data that has had start code emulation prevention data inserted, it can easily identify legitimate start codes and then can remove the start code emulation prevention data to provide the original data that was protected.

Abstract: In accordance with an embodiment of the present invention, a customer premises equipment (CPE) apparatus includes a first communications unit, a second communications unit, and a processing unit. The first communications unit is configured to receive an inbound message packet from a first communications channel. The inbound packet includes a destination address. The second communications unit is configured to send an outbound message packet on a second communications channel. The processing unit is configured to generate the outbound packet from the inbound packet where the outbound packet is modified to include a CPE device identifier if the destination address matches a predetermined registration server address. In one embodiment, this enables automatic CPE identification during subscriber registration process.

Abstract: Provided is a mobility management node capable of forming a paging area, without need for management of a migration history at a mobile node and for notification of a migration history from a mobile node to a network. In mobility management node (MAP) 1, mobility manager 66 lets binding cache 68 store a home address and a c/o address of each mobile node (MN) in correlation with each other. Migration history storage 70 stores a transition frequency of the c/o address stored in binding cache 68 in correlation with prefixes before and after transition. Migration history storage 70 defines paging area information by a set of prefixes included in combinations containing common prefixes, out of combinations of prefixes before and after transition with each of which a transition frequency over a predetermined reference value is correlated. Paging controller 72 notifies the MN of this paging area information.

Abstract: Techniques for fast cell search, selection and reselection for wireless communication systems such as OFDM or OFDMA communication systems. In various implementations of the described techniques, downlink subframes from base stations to mobile stations are designed to include information in form of preambles or post-ambles in one or more downlink subframes to facilitate cell search at receiving mobile stations at high speeds. The described preambles and post-ambles may also be used to improve the accuracy of signal synchronization in time and frequency.

Abstract: An internetwork arrangement including: a prefix request unit for requesting an IPv6 address prefix from each of one or more first internetwork apparatuses; a prefix generation unit for generating a second prefix required to create an IPv6 address in the user apparatus utilizing a service, the second prefix having a length different from that of said IPv6 address prefix, on the basis of each of the one or more arbitrary IPv6 address prefixes, which differ for every service, given as notice by said one or more first internetwork apparatuses; and a prefix sending unit for giving notice of one or more generated second prefixes to the connected user apparatus utilizing said service.

Abstract: Handoff of (i) a mobile wirelessly communicating device—a mobile—between (ii) as plurality of stationary base stations within cells within a domain of (iii) a stationary gateway router all within (iv) a communications network based on the Internet Protocol (IP) is without interchange of control and responsive to the mobile, only. The gateway router assigns to the mobile at a time before the handoff IP addresses suitable for the mobile to connect to the gateway router through all the plurality of base stations of the domain. Unilaterally deriving a handoff decision to switch base stations, the mobile directs its wireless communications link to a new base station where signal level registration is performed. Responsive to a link layer trigger at the new base station, the gateway router is informed of the handoff, and both the router and the mobile independently construct the mobile's new IP address.

Abstract: In one aspect a system and method for providing communication between Ethernet and frame relay routers includes generating a unique media access control (MAC) address for a frame relay router in communication with an Ethernet router, associating the MAC address with the frame relay router, and storing the MAC address in an interworking function device (IWF). The method also includes receiving at the IWF device an address resolution protocol (ARP) request from the Ethernet router and sending from the IWF device to the Ethernet router a response to the ARP request based on the stored MAC addresses.

Abstract: Session signaling register message transmission methods and apparatus well suited for use in a communication system which supports mobile nodes capable of moving between domains and access nodes in a domain are described. Broadcasting of session signaling register messages is supported to reduce the number of registration messages which need to be transmitted between a mobile node and an access node. A paging and location server is used to reduce the number of session signaling register messages transmitted between domains. A visiting node registers with a paging and location server. The session signaling address of the paging and location server being used by a visiting mobile node is registered with the visiting node's home session signaling server. As the visiting node moves between access nodes in the visited domain the paging and location server it uses remains the same eliminating the need to update the home session signaling servers.

Abstract: The invention solves the problem of maintaining Route information Field (RIF) information in a router for populating the RIF field of packets routed by the router, by storing the RIF information with the Layer 2 address in the address binding table. The address binding table establishes a binding between a Layer 2 address and a Layer 3 address of a station. The Layer 2 address in the address binding table is extended to include the RIF information. The address binding table is normally maintained in the router in an architecture which permits rapid access for fast switching such as cut through routing. A separate RIF cache table, requiring a separate time consuming table look-up is thereby avoided. The address binding table is referred to as the Address Resolution Protocol (ARP) Table in IP protocol. The Layer 2 address is extended to include both MAC address and REF information.

Abstract: A mobile communication control method includes: converting a first address of a destination mobile terminal which is included in a packet as a destination address, to a second address of the destination mobile terminal which is associated with the first address of the destination mobile terminal, in a source router; and converting the second address of the destination mobile terminal which is included in the received packet as a destination address, to the first address of the destination mobile terminal which is associated with the second address of the destination mobile terminal, in a destination router.

Abstract: A switch assembly having multiple blades in a chassis and a method of using that assembly to switch data is disclosed. A network switch assembly for network communications includes at least one fabric blade and a plurality of port blades. The at least one fabric blade has at least one switch having a plurality of data port interfaces, supporting a plurality of fabric data ports transmitting and receiving data, and a CPU interface, where CPU interface is configured to communicate with a CPU. The at least one fabric blade also has a CPU subsystem communicating with the CPU interface. Each of said plurality of port blades has at least one switch having a plurality of data port interfaces, supporting a plurality of port data ports transmitting and receiving data.

Abstract: An ATM cell data transmission control process is disclosed for controlling the transmission of ATM cell data. To an ATM layer device for processing ATM cell data in an ATM layer, there are connected a preceding-stage device for transmitting ATM cell data to the ATM layer device through a UTOPIA level 2 interface, and subsequent-stage devices for receiving the ATM cell data transmitted from the ATM layer device through a UTOPIA level 2 interface. The ATM layer device searches for a second address of the preceding-stage device based on a first address of a subsequent-stage device which is incapable of receiving ATM cell data, and masks the second address so as not to be recognized by the preceding-stage device when the ATM layer device transmits the second address to the preceding-stage device.

Abstract: A technique for compressing header information to produce a compressed header portion of a data packet to be transmitted across a communication channel includes generating a checksum from the header information, and providing the checksum as the compressed header portion.

Abstract: A method to implement an address pool is described. The method collects at least one address, the at least one address originally assigned as a unique address to at least one physical interface of a computer. Each originally assigned address is modified to be a plurality of modified addresses. The plurality of modified addresses is organized as an address pool. A selected modified address from the pool is assigned as a unique address for the pool. The selected modified address is used in contacting the computer in response to receiving a message addressed to an address of the pool.

Abstract: A system and method for forwarding data packets with quality of service and rate control. A plurality of data packets are received from a plurality of sources. The header information of each data packet is extracted and compared against a plurality of tables, and then new header information is assembled based upon the comparison results. The data packets have their headers replaced by the new header information on the fly before being sent to their destinations, or the new header information may be dropped if certain conditions are met.

Abstract: Systems, methods and devices for virtual network addresses. A method comprises processing a request from a requestor to create a plurality of software network devices having a corresponding plurality of media access control (MAC) addresses. The MAC addresses may be allocated to a network interface circuit. The MAC addresses and the software network devices may be provided to the requestor. Incoming data units may be received from a network via a driver and a demultiplexor. Outgoing data units may be sent on to the network via a driver.

Abstract: A method of intercepting call content in a packet-based Internet Protocol (IP) network. The method includes targeting bearer packets containing the call content via a Softswitch controlling the redirection of the targeted bearer packets through a specified Intercept Router using alias IP addresses for the targeted bearer packets.

Abstract: A port width module operating in association with SAS controllers determines the operational state of communication across an SAS cable by comparing the number of links at opposing controllers that are capable of supporting communication with the number of links in DWord synchronization. For example, an information handling system capable of communication of four links at an SAS connector communicates in a normal state across two links where the opposing device is a switch that supports only two links at an SAS connector. An LED at the information handling system indicates normal operations with two links in DWord synchronization by receiving the port width of the opposing device, retrieving its own port width, and comparing the port widths with the number of links in DWord synchronization.

Abstract: Switching data packets includes forwarding first data packets to a first port that is associated with a first domain. Second data packets are forwarded to a second port that is associated with a second domain. The first data packets are managed using a first management subsystem of a service processor card, and the second data packets are managed using a second management subsystem of the service processor card.

Abstract: The sensor device according to the present invention is comprised of: an address storage unit 107 which stores a channel address to be used; a temperature sensor 103; a table storage unit 101 which stores an address table in which a measurement value is associated with a channel address; an address specification unit 102 which specifies a channel address associated with a measured value obtained from the temperature sensor 103; an address update unit 105 which updates the channel address in the address storage unit 107; a judgment unit 108 which judges whether or not inquiry data is directed to the channel address stored in the address storage unit 107; a response generation unit 106 which generates response data which is a response to the inquiry data; and a communication unit 109 which transmits the response data to a retrieval node 120.

Abstract: The use of IP address blocks with default interfaces in a router is described herein. According to one embodiment, an exemplary method includes in response to a request for a first IP address received from a first client at an interface of the network element, assigning the first client an IP address from a first block of IP addresses dynamically allocated from an IP address provider separated from a pool of statically preassigned IP addresses, if there is no IP address remained unassigned in the pool of statically preassigned IP addresses, and advertising reachability information in a network with respect to the first block of the IP addresses dynamically allocated from the IP address provider, such that other entities of the network are aware of the first block of the IP addresses. Other methods and apparatuses are also described.

Abstract: An apparatus, method and computer readable device for providing spatial information in a sensor network. The sensor network comprises a plurality of sensors and a plurality of actuators, each sensors and actuators have a unique id and a known spatial location within a spatially-bounded zone and a database is provided for storing the location each sensor and actuator. A spatial-processor generates a plurality of context zones based upon the information contained in the location database to provide actuator coverage for the spatially-bounded zone. Each context zone is generated by assigning a subset of the plurality of sensors as a spatial boundary of each context zone and by deploying a subset of the plurality of actuators into one or more context zones. In operation, the spatial-processor determines if an actuator has failed in context zone and redeploys one or more actuators from another intersecting context zone to the context zone containing the non-operational actuator.

Abstract: One embodiment relates to a method of transporting data packets between a plurality of transport units in a building. Transmit flows are created and associated with source-destination address pairs of new data streams received from outside a network of the transport units. A separate sequence space is provided for each transmit flow. The transmission of the data packets belonging to a same transmit flow is advantageously spread among multiple link-layer links. Other embodiments, aspects and features are also disclosed.

Abstract: A solution for matching RADIUS request packets with corresponding RADIUS response packets when the number of simultaneous outstanding requests is greater than 256 involves using a sixteen-octet authenticator field in each packet. For each response packet that arrives, the identifier of the packet is compared in turn with the identifier of each outstanding request packet. If the identifiers match, the authenticators are then compared. If the results of the comparison indicate a match, the packet is accepted and no further processing of the outstanding requests is required. Otherwise, a search of the outstanding request packets is continued. This solution allows for more than 256 simultaneous outstanding RADIUS requests and only encounters a mismatch or ambiguous match with a probability of one in 3.4×1038 packets.

Abstract: An Active User Registry system includes a database which is integrated with the POTS network and a packet network to exploit the outstanding strengths of both of its constituents. The Active User Registry database is a dynamic data structure of all the ways in which one or more users can be reached via some type of communication network. A key feature of the Active User Registry is the ability to broker between a subscriber's request for communications contact information corresponding to a user and the user's preferences of being reached by various communications alternatives.

Abstract: A method and apparatus for establishing a communication channel provided. The apparatus includes a storage unit which stores a communication channel search starting point for an address of the apparatus; and a controller which searches a communication channel at the communication channel search starting point set in the address of the apparatus Accordingly, the probability of establishing the same communication channel may be reduced. As a result, inter-channel interference may also be reduced so that image deterioration may be prevented.

Abstract: A technique for enabling a secure, point-to-point wireless connection between a secondary computer (e.g., a personal digital assistant, etc.) and a primary computer (e.g., a notebook, a desktop, etc.) is disclosed. The primary computer is associated with an extended infrastructure through an access point. The present invention enables the secondary computer to communicate either with the associated primary computer or with an extended network indirectly through the access point.

Abstract: The admissibility of periodic traffic to a wireless medium can be estimated using a measurement report format that includes a field indicating the number of bins for a predetermined channel of the wireless medium that were busy during a measurement period, and a field indicating the number of bins for the predetermined channel of the wireless medium that were idle during the measurement period. Additionally, the measurement report format includes a field indicating the granularity in multiples of slot times of the wireless medium and a plurality of Bin Density fields, such that one Bin Density field indicates a density of medium time that the wireless medium is busy, and at least one other Bin Density field indicates a distribution of idle time after the wireless medium was busy for time 0 slots.

Abstract: A method and system for mapping security parameters to a plurality of network sessions is provided. A responding computer maps the security parameters to the combination of packet parameters and a mapped port value used in each of the plurality of sessions. The packet parameters includes IP source and destination addresses, application source and destination ports and protocol type. The mapped port value is assigned by the responding computer to maintain a unique mapping between each security association and each network session.

Abstract: A routing method. When implemented in a network system, the routing method ameliorates problems of media stream routing through a network address translation (NAT) device. First, whether a first terminal will correspond to different public address-and-port information for receiving media stream packets from a second terminal opposite to the first terminal after receiving different requests is determined. The first and second terminals comprise a caller and a callee which are capable of communicating in SIP protocol. The public address-and-port information is recorded as source information in media stream packets initiated by the requests. Media stream packets from the first terminal are relayed based on the determination.

Abstract: A communication connection supporting system has a data processing device that generates, in accordance with a character string inputted as a user name, APN (Access Point Name) data for causing a communication device to perform a dial-up connection. The communication device performs the dial-up connection in accordance with data of at least the user name, the APN and dial information for the dial-up connection.