Abstract: A network device has a network interface to allow the device to send and receive traffic across a network. The device also has a cable connection to allow the device to exchange data with at least one other device across a cable network. The device has a processor to receive traffic having a network identifier through the network interface and determine if the network identifier is associated with a virtual private network. If the network identifier is associated with a virtual private network, the device then routes the traffic to an appropriate receiving entity through the cable connection if the network identifier is associated with a local are network.

Abstract: A circuit includes a first selection module having first data input, second data input, first validation input, second validation input, selected data output, marker output, and presence output. A first validation signal received at the first validation input identifies whether or not a first data signal received at the first data input is valid; a second validation signal received at the second validation input identifies whether or not a second data signal received at the second data input is valid; a presence signal outputted at the presence output identifies whether or not at least one data signal is valid; and the first data input has an assigned selection priority higher than that assigned to the second data input. If at least one data signal is identified as valid, the valid data signal having the higher assigned priority is transferred to the selected data output.

Abstract: Conventional two-way wireless communication nodes require separate channels to receive or transmit. The two channels are usually multiplexed in time and/or frequency. A system which can support both links (transmit and receive) at the same time is referenced as a as a full duplex system. Systems and methods are described to create the two links simultaneously, overlapping in frequency and in time domains, while avoiding the hardware complexity and/or lack of flexibility inherent to conventional systems, by reducing the amount of self interference between transmitter and receiver sections. The self interference may be reduced by using at least one of antenna design techniques comprising antenna selection and signal processing techniques to maximize the signal-to-interference plus noise ratio.

Abstract: Method and system for providing continuous data forwarding during a failure mode in a wireless data network including detecting a control plane failure mode of a network switch, maintaining data path between one or more network entities with the network switch, detecting the network switch recovery from the control plane failure mode, and re-authenticating the one or more network entities over the data network is disclosed without disrupting data traffic forwarding.

Abstract: Different NAK signals are used to indicate different relative levels of success in regard to an unsuccessful attempt to decode a received signal. An ACK signal is used in the case of successful decoding. The device which generated and transmitted the original encoded signal receives the NAK signal and selects a portion of redundant information, e.g., additional error correction bits, to be transmitted based on the value of the NAK signal. If the NAK signal indicates a low level of decoding success indicating a relatively large number of errors in the decoded signal, a large set of redundant information is selected and transmitted. If the NAK signal indicates a relatively successful decoding, e.g., relatively few errors, a small set of redundant information is selected and transmitted. Where a small set of redundant information is transmitted new information can be transmitted with the redundant information.

Abstract: The advanced intelligent network (AIN) to determine routing of voice calls alternatively between the public switched telephone network (PSTN) and a data packet network, such as the Internet, in accordance with the quality of service existing in the data packet network at the times of call origination. The user's acceptable level of service may be predefined with a threshold quality level stored in the user's Call Processing Record (CPR) in the AIN Integrated Services Control Point (ISCP). On a per call basis, the caller linked to a first public switched network may indicate a preference to route through the Internet. This indication is recognized by the AIN system, in response to which the quality of service currently present on the Internet for completion of the call is measured. If the result exceeds the stored threshold, the call is setup and routed through the Internet to the switched network link to the destination party.

Abstract: A network device includes a primary control unit that establishes a network tunnel with another network device. The network device applies a silent failover technique to failover from the primary control unit to a backup control unit while maintaining the network tunnel. The network tunnel may be, for example, a Layer 2 Tunneling Protocol (L2TP) tunnel, and the network device may be an L2TP Access Concentrator (LAC) or an L2TP Network Server (LNS). The techniques may prevent abnormal termination of the network tunnel during the failover. Once the failover from the primary control unit to the backup control unit is complete, the backup control unit synchronizes sequence numbers associated with the network tunnel with sequence numbers of the non-failed network device, and resolves inconsistencies between subscriber session databases of the backup control unit and the non-failed network device.

Abstract: Stream data and a command output from a drive device are individually packetized in a first packet processing unit. The stream data packet and the command packet are further multiplexed, and the multiplexed data is transmitted to a transmission path using a synchronous channel. When the command output from a decoding unit is packetized in a second packet processing unit, it is packetized by multiplexing flow control information output from the decoding unit, and is transmitted to the first packet processing unit using a synchronous channel of the transmission path. Based on this flow control information, reading/writing by the drive device is controlled.

Abstract: Service resource items (49) for use in call setup in a telephone system are held on servers (58) that are connected to a computer network which is logically distinct from the telephone system infrastructure; this computer network may, for example, make use of the Internet. Each service item (49) is locatable on the network at a corresponding URI and is associated with a particular telephone number. A mapping is provided between telephone numbers and the URIs of associated service resource items. When it is desired to access a service resource item (49) associated with a particular telephone number, this mapping is used to retrieve the corresponding URI (step 55) which is then used to access the desired service resource item (56, 57, 59).

Abstract: The invention relates to a method for ensuring the adequacy of transmission capacity in a digital packet-switched cellular network where both voice sample packets and associated header fields are transmitted in real time in one and the same transmission channel. The invention also relates to a terminal employing the method. In the method, the contents of voice sample packets at the beginning of a speech spurt are partly replaced by packet header field data in situations where the combined bit count of voice sample data and packet header data exceeds the transmission capacity of the transmission channel.

Abstract: A method of data transmission which includes providing a plurality of data streams, having different content, modulating the different data streams by respective modulators, multiplexing the modulated data streams into a single data stream alternately in time, such that the resultant stream includes at any specific time signals from fewer than all the data streams and transmitting the multiplexed single data stream onto a transmission channel.

Abstract: A method, apparatus, and system in which a network system has one or more individual networks. The topology of the first individual network includes two or more service modules. At least one of the service modules is modeled to represent a network element that performs one or more functions to process a packet in a network system. The two or more service modules may be arranged in the first individual network in an arbitrary topology. The packet processing by the two or more service modules is governed by the topology of the first individual network.

Abstract: Described are computer-based methods and apparatuses, including computer program products, for scalable filtering and policing mechanism for protecting user traffic in a network. A data packet is filtered by a multi-tiered filtering and transmission system. Data packets matching the first tier filter are discarded. Data packets matching the second tier filter are transmitted to an output module based on a criterion. Data packets in the third tier filter are hashed into bins and data packets matching an entry in the bin are transmitted to the output module based on a criterion for the bin. Data packets in the fourth tier transmission system are transmitted to the output module based on a criterion. Data packets that do not meet the criterion for transmission to the output module are transmitted to an attack identification module which analyzes the data packets to identify attacks.

Abstract: A mechanism and method for efficient endpoint discriminator allocation for APS protected MLPPP bundles on distributed routing systems, including one or more of the following: specifying working and protection MLPPP bundles; retrieving an endpoint discriminator for the working bundle and updating an endpoint discriminator of the protection bundle based on same; specifying MLPPP operating parameters for the bundles; associating the bundles with an APS circuit; adding links and corresponding discriminators in an LCP between a near end bundle and a far end bundle; bringing up an MLPPP session; and adding links between bundles upon an APS switchover.

Abstract: A method for bandwidth control on a network interface card (NIC), the method that includes initiating a current time period, receiving a plurality of incoming packets for a receive ring, populating, by a NIC, the receive ring with the plurality of incoming packets according to a size of the receive ring during the current time period, wherein the size of the receive ring is based on an allocated bandwidth for the receive ring, and sending, by the NIC, the plurality of incoming packets to a host when a duration of the current time period elapses, wherein the duration is based on the allocated bandwidth for the receive ring.

Abstract: A method of configuring a network access device connected to an access network connected to a plurality of service networks, the network device having a first network address allocated to a subscriber of services of a first service provider provided by a first service network, with a new network address allocated to a second subscriber of services of either the first service provider, or a second service provider provided by a second service network. The method comprises the steps of: sending a request from the network access device to the access network with user credentials for the second subscriber requesting access to the first service provider or a change to the second service provider; receiving a response from the access network; and initiating a network address change request using a configuration protocol.

Abstract: An IP communication apparatus has a file transferer that transfers a media data file to a destination apparatus, when determining that the destination apparatus has the file transfer function, based on transmission and reception of SIP messages to and from a call controller, which transmits and receives SIP messages to and from the destination apparatus via a call connection server. Thereby, the IP communication apparatus allows an easy transfer of the media data file.

Abstract: A network device, system and method are provided for detection of mismatched VLAN tags on a port of a network chip and a packet. The network device includes a processor, a memory and a network chip having a number of network ports. One of the ports is tagged with a VLAN membership of at least one particular VLAN and configured to receive a packet. Computer executable instructions are storable in the memory and executable by the processor to detect whether the packet received at the port is untagged with any VLAN. Upon detecting that the packet is untagged with any VLAN, the computer executable instructions determine whether the untagged packet is intended to be untagged on the particular VLAN at the port.

Abstract: The embodiment discloses a connection oriented packet network using an MPLS-type label switching technology. The network uses a very fast hardware-oriented self-routing protocol that can expose a path right-of-way and program a connection between a calling and called party at wire speed. The embodiment requires no provisioning and is well suited for mobile and ad-hoc networks. The system and method taught can be applied to other data networks where performance guarantees are important.

Abstract: Example scalable multi-protocol label switching (MPLS) based virtual private networks (VPNs) and methods to implement the same are disclosed. A disclosed example spoke provider edge (PE) router for an MPLS-based VPN includes a truncated virtual routing and forwarding (VRF) table containing a first value referencing a hub PE router and a second value referencing a first customer edge (CE) router coupled to the VPN via the PE router, and a forwarding module to forward a packet received from the first CE router to the hub PE router when the packet contains an address referencing a second CE router coupled to the VPN via a second spoke PE router.