Abstract: Methods and systems for operating a physical layer device (“PHY”) in an Ethernet network include methods and systems for detecting active link partners and for selecting a mode of operation based on detected active link partners, without user intervention. The PHY monitors fiber link media and copper link media for active link partners. The PHY selects a mode of operation according to detected active link partners. For example, a serial gigabit media independent (“SGMII”) mode of operation is selected when an active copper link partner is detected and an active fiber link partner is not detected. Similarly, a serialize/deserialize (“SerDes”) pass-through mode of operation is selected when an active fiber link partner is detected and an active copper link partner is not detected. The PHY interfaces with the active copper link partner when the SGMII mode of operation is selected. Conversely, the PHY interfaces with the active fiber link partner when the SerDes pass-through mode of operation is selected.

Abstract: A system that allows information of MPLS layers to be reported to PW layers by providing a function having a correlation between MPLS layers and PW layers. A PE uses MPLS (Multi-Protocol Label Switching) tunneling and label technology to map a communication service to MPLS, thereby providing bidirectional services on an end-to-end basis. a communication system comprising the PE to perform label assignment control for bidirectional services, the PE to transmit, after completion of assignment control, a message in which the LDP message used in assignment control is a payload and a tunnel-directed label (L2) used by bidirectional services is a header and the PE to associate, on the basis of the received LDP message used in assignment control, a service-directed label (P1) included in the LDP message with the received tunnel-directed label (L2) in the part where the message is terminated.

Abstract: A system has a plurality of nodes connected in a multi-dimensional matrix and having node addresses, respectively, each of the nodes having a processor, and a router for transmitting a request packet to a node adjacent to its own node located in n+1th dimension when the address of nth dimension of its own node is matched to the address of nth dimension of the target node, transmitting a response packet to a node adjacent to its own node located in nth dimension when the address of n+1th dimension of its own node is matched to the address of n+1th dimension of the response packet, wherein the router terminates a request packet when the address of the request packet is fully matched to the node address of its own node in all the dimensions, transfers the data conveyed by the request packet to the processor of its own node for processing.

Abstract: A system, device, and method for distributing link state information in a communication network combines a link state routing protocol with a sliding window mechanism in order to efficiently distribute link state information. The sliding window mechanism permits a predetermined number of unacknowledged link state advertisement protocol messages to be outstanding at any given time. Unacknowledged link state advertisement protocol messages are retransmitted after a predetermined timeout period.

Abstract: A packet relay device receives an input packet via a first communication port out of a plurality of communication ports of the packet relay device and transmits the input packet via a second communication port out of the plurality of communication ports. The packet relay device includes a learning table storage, a header adder, a discard determiner, and a packet reducer. The learning table storage stores a source address contained in the input packet, in association with an input port identifier capable of identifying the first communication port. The header adder adds an internal transfer header containing the input port identifier to the input packet to generate an internal transfer packet. The discard determiner determines whether to discard the internal transfer packet. The packet reducer reduces the internal transfer packet to preserve at least the source address and the input port identifier upon determining to discard the internal transfer packet.

Abstract: Technology for combating loops in multi-domain networks, by assigning to network domains categories, at least such as “high/trusted” and “low/less trusted”, and by making a decision about relearning Forwarding Information Base FIB of any edge node interconnecting different network domains, utilizing the assigned categories.

Abstract: A system is provided that includes a component configured to promote detachment of a user equipment (UE) from a plurality of packet data network (PDN) gateways by sending a message to each of the plurality of PDN gateways to which the UE has at least one active bearer. The message requests that at least one of the plurality of PDN gateways delete the at least one active bearer.

Abstract: An apparatus and method for processing IP packet fragmentation in a routing system using a network processor includes an ingress network processor receiving a packet, and if the received packet is greater than MTU, fragmenting the packet rather than sending the packet to a control processor to fragment the packet. All packets are processed using a fragmentation-based packet-processing method as a result of packet encapsulation, which is caused for mobility support in an IPv4 router. In addition, all the packets are processed by micro-engines, a data plane processor, irrespective of whether fragmentation is to be performed. Accordingly, the same packet-processing rate can be supported to mobile nodes irrespective of mobility or packet size.

Abstract: A mobile communication method according to the present invention includes the steps of; (A) notifying, from a radio base station (eNB) to a mobile station (UE), a first cycle and information on the uplink radio resource; and (B) determining, at the mobile station (UE), a first allocation starting time, receiving a downlink data via a downlink radio resource and transmitting an acknowledgement information via an uplink radio resource at and after the first allocation starting time, when receiving a fixed allocation signal from the radio base station (UE). In the step (B), the uplink radio resource is adjusted by an adjustment signal included in the fixed allocation signal and the acknowledgement information is transmitted via the adjusted uplink radio resource.

Abstract: Methods are disclosed for detecting feature interactions during a call that has a signaling path comprising two or more legs. In accordance with the illustrative embodiment, feature state information is maintained for each of the legs of the call and is propagated along the signaling path. The illustrative embodiment is capable of detecting interactions between features in different legs of a call, as well as interactions between features in the same leg of a call. Moreover, the illustrative embodiment is capable of accommodating a variety of feature resolution techniques. In one illustrative embodiment specific to Voice over Internet Protocol (VoIP) telephony, a Back-to-Back User Agent (B2BUA) stores and propagates the feature state information, and performs address mapping for two specially-defined headers in addition to the usual Session Initiation Protocol (SIP) headers.

Abstract: The invention discloses a single network interface device with multi-ports, the network interface device supports two or more physical network transmission routes to transmit and receive data, and upload the received data into a host through a host interface or download the data waiting to be transmitted to network from the host through the host interface. Therefore, the present invention increases network communication speed and improves host interface bandwidth.

Abstract: An information processing apparatus includes an obtaining unit configured to obtain pieces of identification information sent from devices mutually connected via a network, a determination unit configured to determine, in a case where the pieces of identification information which are obtained by the obtaining unit and sent by using mutually different protocols are identical with each other, that the devices which send the pieces of identification information are identical with each other, and a display unit configured to integrate information related to the devices determined to be identical with each other by the determination unit and display the information on a display apparatus.

Abstract: The invention concerns a method and an apparatus for detecting vocal data flow in a packet data flow characterised by at least two measurable variables (X5Y). A distribution function (P{x 1 C}, P{y I C}) is provided of the values of each variable (X5Y) in a vocal data flow, and the values (x,y) of each variable (X,Y) are measured in order to obtain a sequence of measured values (x(k), y(k)) on a number (k) of blocks. Each measured value (x(k), y(k)) is therefore applied to the respective distributiion function (P{x 1 C}, P{yI C}) in order to generate a sequence of likelihood values Formula (I) from which respective average likelihood values (E [Bx],E[By]) are generated. The average values are processed in order to generate a reference likelihood value (B) which, when compared with a threshold likelihood value (Bmin) enables the presence of vocal data flow in a packet data flow to be detected.

Abstract: There are provided a customer premise equipment (CPE) device, a corresponding method, and a Digital Subscriber Line Access Multiplexer (DSLAM) for connecting to a digital network. The CPE device includes a user input device for receiving a user input specifying one or more channels for which closed caption (CC) information is sought. The CPE device also includes a decoder for receiving the CC information for the one or more channels specified by the user input.

Abstract: An apparatus is disclosed that includes first transceiver circuitry adapted for transmitting and receiving Ethernet data over a network using a first Ethernet communication protocol at a first data rate, second transceiver circuitry adapted for transmitting and receiving Ethernet data over a network using a second Ethernet communication protocol at a second data rate; and third transceiver circuitry adapted for transmitting and receiving Ethernet data over a network using a third Ethernet communication protocol at a third data rate.

Abstract: A system and method provides a broadband network node for a best effort network such as the Internet or intranets which supports the inexpensive and rapid deployment of services to the best efforts network. Separate data path and control path mechanisms allow high-speed data transfers with parallel processing flows for the data path that are controlled across data flows by the control path. Packets are classified, modified and shaped to enable the service on the network with an accountant to track packet traffic for control and billing purposes. A series of processing blades perform a modification function for each blade that processes packets according to classifications. The processing blades are modular and scalable for insertion in the broad band switch to rapidly adapt the broadband network node for new services.

Abstract: A shared memory system including: a shared memory includes a plurality of memory banks; a plurality of input ports; a plurality of input buffers; and a controller for controlling writing-into and reading out of the shared memory and for transferring data from each of the input buffers to the shared memory, wherein when one of the memory banks is cycled back next to the starting memory bank, another memory block is to be selected next for writing the remainder of a series of data, said controller controlling each of the input buffers to transfer a plurality of series of data to the shared memory successively with a time gap while switching to said another memory block, said controller offsetting a start memory bank in said another block for start writing the remainder of the series of data by an amount of memory banks corresponding to the time gap.

Abstract: An enhanced Ethernet protocol for computing and telecommunication supports a shortened frame size for communicating data payloads among selected devices within a constrained neighborhood based on a unique identification.

Abstract: A method of monitoring data on a first communication line. Data is received from the first communication line (402) and a plurality of packets (406) are extracted (416) from the data. Statistics are then recursively generated (408), the statistics corresponding to the plurality of packets.

Abstract: Nodes of the network are organized into a tree structure having a plurality of vertices. Each vertex of the tree structure comprises a group having a plurality of nodes. Membership information is maintained at each node. The membership information for a given node comprises information about a group to which the given node belongs and child groups of the group to which the given node belongs in the tree structure. The steps are performed at least in part by a processor.