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Multiplex Communications > Fault Recovery > Bypass An Inoperative Switch Or Inoperative Element Of A Switching System Bypass An Inoperative Switch Or Inoperative Element Of A Switching SystemBypass An Inoperative Switch Or Inoperative Element Of A Switching System patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/31/08 - 20080025207 - Switch and network fault recovery method A first switch flashes an FDB upon receiving an FDB flash frame and then floods a multicast group join query message (QRY1). A terminal sends a group join message (RP1) back to the first switch. A second switch, a third switch and the first switch receive RP1 and perform IGMP/MLD ... 01/17/08 - 20080013446 - Methods, systems, and computer program products for selectively limiting access to signaling network nodes that share a point code Methods, systems, and computer program products for selectively limiting access to signaling network nodes that share a point code are disclosed. According to one method, first and second destination nodes are provisioned to be identified by a common point code. Messages are routed to the first and second destination nodes ... 01/10/08 - 20080008087 - Method and system for improving communication reliability A system and a method for improving communication reliability include: in normal working status, an access layer device communicating with a user terminal through a primary working link; when a failure of the primary working link between the access layer device and the user terminal is detected, switching the working ... 11/01/07 - 20070253326 - System and method for resilient vpls over multi-nodal aps protected provider edge nodes A system and method for multi-nodal APS (MN-APS) protection switching for a virtual private LAN service (VPLS) using a redundant pair of PE (provider edge) nodes is provided. In the event of an APS switchover, the previously active node of the redundant pair sends explicit requests to the other provider ... 11/01/07 - 20070253325 - System and method for automatic reset of pre-programmed circuits in case of failures in transport networks A network system comprises at least one input TNE (10) and one output TNE (11) interconnected by circuits in the network (20). Each TNE in the protection step comprises a traffic selector (22, 23) switchable between listening to the traffic input from a work circuit (13, 14) and listening to ... 10/11/07 - 20070237071 - Input-output fabric conflict detection and resolution in a blade compute module system Determining whether there exists an input-output (I/O) fabric conflict (mismatch) between a blade I/O fabric daughter card of a blade compute module and an I/O interface module of a blade compute module system, and if a conflicts does exit then taking action to correct this I/O fabric mismatch. An I/O ... 09/13/07 - 20070211622 - Path switching control system, path swithching control method and computer system using path switching control Disclosed is a path switching control system for controlling path switching, including: an active path control unit for controlling active paths; a standby path control unit for controlling standby paths; and a path switching control unit being configured in hardware and for controlling the path switching, wherein the path switching ... 08/30/07 - 20070201355 - Method and apparatus for determining a preferred backup tunnel to protect point-to-multipoint label switch paths A method, apparatus and computer program product for determining a preferred backup path to protect a point-to-multipoint label switching path is presented. A point-to-multipoint backup path is computed for each node located upstream from a branching node, the backup path originating at the node and including a set of nodes ... 08/23/07 - 20070195693 - Method and device for implementing och-spring in wavelength division multiplexing systems The present invention discloses a method and device for implementing Och-SPRing in Wavelength Division Multiplexing system. The method includes: in the node of the optical network system, setting two switches in each working path and its backup path that pass through the node, each of which includes two input ports ... 08/09/07 - 20070183314 - Methods, systems, and computer program products for implementing link redundancy in a media gateway Methods, systems, and computer program products for implementing link redundancy in a media gateway are provided according to one method, a media gateway link protection group is provisioned to associate with a common VLAN a common virtual local area network (VLAN) primary and secondary links associated with at least one ... 07/19/07 - 20070165516 - Method and system for providing availability and reliability for a telecommunication network entity Geographical redundancy and an efficient switchover process to redundant equipment (210) is achieved by separating active main equipment (220) and standby redundant equipment in different geographical locations so that failures can be avoided in the event of a natural disaster or other event that affects an entire building or region. ... 07/12/07 - 20070159961 - Method and devices for implementing group protection in mpls network A method for implementing group protection in a Multiple Protocol Label Switching (MPLS) network disclosed in the present invention includes: monitoring a Label Switched Path (LSP) in an MPLS network; and performing a group protection switching when a failure is determined on an LSP of the working LSP group according ... 06/21/07 - 20070140109 - Method for protection switching of geographically separate switching systems A protocol is provided being executed with a redundancy of 1:1. As a result, an identical clone, with identical hardware, identical software and an identical data base, is allocated to each switching system to be protected, as a redundancy partner. Switching is carried out in a quick, secure and automatic ... 05/31/07 - 20070121488 - System and method for implementing service switching A system for implementing service switching includes a primary service processing unit, a physical interface card, a control center, a switching unit and a standby service processing unit, to guarantee that the physical interface card connected to the failed primary service processing unit transmits the service data that should be ... 05/17/07 - 20070109958 - Network with redundancy properties, a branching unit for a user device in a network, redundancy manager for a network with redundancy properties and method for operating a network with redundancy properties The invention relates to a network, in particular a PA PROFIBUS network having redundant properties and a linear topology. Two line ends are connected to a redundancy manager which disconnects said line ends in error-free conditions and connects them in error conditions. Said redundancy manager supplies voltage to the first ... 04/26/07 - 20070091790 - Systems and methods for providing variable protection The systems and methods maintain varying protection levels of related objects, such as when nodes of a data structure are protected at the same or greater protection level as their children nodes. In one embodiment, the nodes store data to track protection levels of their children nodes. ... 04/19/07 - 20070086330 - Transmission system and its protection method A transmission system which performs protections to node failures by using protection paths equipped by a shared node protection system for each transmission path on a network formed of a plurality of nodes, uniformly moving transmission band setting of all other protection paths which share these transmission bands when the ... 04/05/07 - 20070076592 - Non-invasive frequency rollback apparatus and method A spare receiver in a CMTS is used to non-invasively test the signal quality of an original channel frequency of a receiver which has been tuned to another channel frequency so the operator can retune the receiver to its original channel frequency without disrupting subscriber operations. The spare receiver is ... 03/08/07 - 20070053284 - System and method for fault-tolerance in an inter-carrier network interface A system and method are disclosed for fault-tolerance in an inter-carrier network interface. A system that incorporates teachings of the present disclosure may include, for example, a PE-ASBR (Provider Edge-Autonomous System Boundary Router) (108, 138) having a communications interface (202) for internetworking with another MPLS-VPN (Multi-protocol Label Switching-Virtual Private Network) ... 02/08/07 - 20070030800 - Reflector communications channel for automatic protection switching An apparatus and method for a communications network including at least one interface circuit reads frame data received from the communications network and writes frame data to be transmitted over the communications network, the frame data including a plurality of transport overhead fields. The apparatus includes signature logic coupled to ... 02/01/07 - 20070025240 - Bypass switch for an ethernet device and method of bypassing devices in an ethernet network A network comprises a plurality of network devices, including a first network device coupled to a second network device and a third network in a daisy chain topology configuration. The first network device has a first device port connected to a first network port and a second device port connected ... 02/01/07 - 20070025239 - Method, system, and machine-readable medium for securely maintaining communications network connection data A method, system, and machine-readable medium for securely maintaining communications network connection data is disclosed. According to one embodiment, a method is disclosed according to which a user is prompted for network element address substitution data which specifies a substitute network element address for a network element address associated with ... 01/25/07 - 20070019540 - Mechanisms for providing connectivity in nat redundant/fail-over scenarios in unshared address-space Disclosed are methods and apparatus for facilitating reliable session based communication with a local host via a subnet of redundant network devices that also implement network address translation (NAT) or the like. In general, embodiments of the present invention include mechanisms for reestablishing access to a local host after the ... 12/28/06 - 20060291376 - Continuous median failure control system and method A redundant control system including at least three redundant signals is presented. The redundant control system includes a failure circuit associated with each of the redundant signals. The failure circuit generates a failure signal in response to an occurrence of a failure of a corresponding one of the redundant signals. ... 12/07/06 - 20060274648 - Methods, systems, and computer program products for implementing a standardized interpretive engine A method, system, and computer program product for implementing a standardized interpretive engine is provided. The method includes externalizing at least one of a business and a user requirement into a component class of a data control structure. The method also includes defining a solution to the business and user ... 11/30/06 - 20060268686 - Methods, systems, and computer program products for implementing automatic protection switching for media packets transmitted over an ethernet switching fabric Methods, systems, and computer program products for implementing automatic protection switching for media packets, such as ATM cells or IP packets that carry media content, in a device that includes an Ethernet switching fabric are disclosed. According to one method, first and second packet network interfaces of the device are ... 11/09/06 - 20060250951 - Path switching system for network A path switching system can dramatically decrease time required until a transfer path of user data is switched to a detour path when a failure occurred to a system/line constituting the network. In the path switching system, a path is set by a switch device and a plurality of relay ... 10/26/06 - 20060239183 - Power over ethernet management devices and connection between ethernet devices In one embodiment, a connection is maintained between a pair of ethernet ports that have circuitry connected in series with the ports and receiving power-over-ethernet (PoE) from one of the ports, by providing a controllable bypass circuit coupled to the pair of ethernet ports in parallel with the circuitry receiving ... 10/12/06 - 20060227704 - Special marker message for link aggregation marker protocol A network element aggregates a number of its ports together to form a link aggregation group. To move communications from one of the aggregated ports in case that port fails or otherwise becomes inactive, the network element may use exchange a special marker message and response with a remote network ... 10/12/06 - 20060227703 - Operating method for dynamic physical network layer monitoring An operating method is disclosed for dynamic physical network layer monitoring. A plurality of built-in or extended network interface cards in a computer are to be merged or separated for multitasking operation, redundancy or any emergent application through continuously monitoring the network status. The network devices connected with the computer ... 10/05/06 - 20060221818 - Method, system and storage medium for redundant input/output access A system, method and storage medium for providing redundant I/O access between a plurality of interconnected processor nodes and I/O resources. The method includes determining whether a primary path between the interconnected processor nodes and the I/O resources is operational, where the primary path includes a first processor node and ... 09/21/06 - 20060209680 - Network link backup system A network link backup system includes at least one network port to be selectively connected to a server system for linking the server system to a network; a baseboard management control unit to generate a selection switch signal according to a switch command entered by a manager; and a selection ... 08/31/06 - 20060193249 - Preservation of a ppp session in a redundant system Methods, apparatuses, and systems are presented for conducting a point-to-point (PPP) session relating to establishing a PPP session involving at least a local node and a remote node, wherein the local node comprises a data plane for handling transfer of data for the PPP session at the local node, and ... 08/10/06 - 20060176804 - Data transfer apparatus and multicast system By transmitting/receiving a multicast receiving terminal management message, a router to be a starting point upon creation of a multicast route is determined based on a multicast routing protocol, and switched according to a state of a multicast transmitting terminal side network. Accordingly, when a trouble occurs in the transmitting ... 07/13/06 - 20060153067 - Border router protection with backup tunnel stitching in a computer network A technique protects against the failure of a border router between two domains in a computer network using Fast Reroute and backup tunnels. According to the technique, the protected border router advertises a list of all its adjacent next-hop routers (i.e., its “neighbors”). A neighbor in the first domain that ... 06/15/06 - 20060126499 - Services convergence among heterogeneous wired and wireless networks A system and method for heterogeneous network communication including wired, and wireless communication mediums for seamless data, voice, as well as multimedia applications independent of the actual communication medium, type of device, and protocols running over such communication channels. The devices are structured to operate over both wired and wireless ... 05/25/06 - 20060109783 - High availability voip subsystem A high availability VoIP system interfacing with a PSTN or other TDM network to provide higher availability and better failure recovery wherein the high availability VoIP system includes a plurality of gateways coupled to at least one hub and a proxy table and a call restoration table configured in each ... 05/04/06 - 20060092831 - Methods, systems, and computer program products for substitution of card-based telephony bearer channel switch modules in a manner that preserves stable calls Methods, systems, and computer program products for substitution of card-based telephony bearer channel switch modules in a manner that preserves stable calls are disclosed. According to one method, a first card-based telephony bearer channel switch module of a plurality of card-based telephony bearer channel switch modules is designated as a ... 05/04/06 - 20060092830 - Inter-card channel protection method in wavelength division multiplexed system Disclosed is an inter-card channel protection method in a wave-length division multiplexing system. At the transmitting end, signals from the client side are divided via a coupler into two paths which are delivered to two cards, respectively. The two paths of signal transmitted by the two cards are sent via ... 04/27/06 - 20060087963 - Graceful port shutdown protocol for fibre channel interfaces A port shutdown protocol coordinates among various components involved in the process of administratively bringing down a link at both ends of a link connecting two switches. Execution of the protocol avoids or reduces frame drops and/or reordering. In this protocol, peer switches perform various actions when bringing down an ... 03/30/06 - 20060067210 - Technique for identifying backup path for shared mesh protection The Resource Reservation Protocol (RSVP) is to gather outgoing interface identification information (e.g., outgoing interface ID's or IP addresses) for each node in a primary path. This information is “recorded” in an opaque object (referred to herein as the “RECORD PRIMARY PATH” or “RPP” object). In accordance with the present ... 03/09/06 - 20060050631 - Reconfigurable apparatus providing 1:n and 1:1 equipment redundancy for high speed broadband interfaces with 1‘and 1:n automatic protection switching A reconfigurable apparatus providing 1:N redundancy and 1:1 redundancy for high speed broadband interfaces with 1+1 and 1:N Automatic protection Switching (APS), is presented. The apparatus includes a mini-midplane having a redundant slot, a plurality of active slots and capable of communication with a gateway. The mini-midplane includes at least ... 01/19/06 - 20060013126 - Tunnel failure notification apparatus and method When a failure occurs in the line of a communication network for transmitting packets using a tunnel, the disconnection messages of a plurality of tunnels which pass through the line are unified, and the occurrence of the failure is notified to an adjacent node for each line. Then, the tunnels ... 01/19/06 - 20060013125 - Dynamic forwarding adjacency A technique treats a protected forwarding adjacency (FA) as a dynamic entity in that it allows a backup tunnel associated with the FA to carry traffic for the FA, when it's primary tunnel has failed, up to a predetermined amount of time. If after the predetermined amount of time has ... 01/05/06 - 20060002290 - Method and apparatus of maintaining a pbx system A method and an apparatus of maintaining a private branch exchange (PBX) system. The PBX system has a first top-level host used for serving a plurality of IP-based PBX extensions. The method includes utilizing a first medium-level host for checking if the first top-level host is capable of serving the ... 12/22/05 - 20050281193 - Transceiver module and integrated circuit with clock and data recovery clock diplexing An integrated circuit. The integrated circuit is usable in a transceiver module. The integrated circuit includes an input port that is configured to receive a data stream. A clock port on the integrated circuit is configured to receive a reference clock diplexed with another signal or voltage used by the ... 12/22/05 - 20050281192 - Consistency between mpls forwarding and control planes Systems and methods for assuring consistency between MPLS forwarding and control planes. The control plane can be made aware of forwarding plane anomalies and can respond appropriately. One particular application is assuring consistency between forwarding and control planes of a Fast Reroute backup tunnels used to protect an MPLS Traffic ... 12/15/05 - 20050276215 - Network relay system and control method thereof The network relay device of the invention makes a pair with at least a specific network device to relay data in a network. The network relay device includes: a control module that sends and receives a control frame signal to and from the specific network device, selects either of a ... 11/24/05 - 20050259572 - Distributed high availability system and method A network of computer resources includes a plurality of heterogeneous nodes. Each node meets predetermined minimum standards. The nodes are interconnected, either directly or indirectly, to one another over a high-speed data network. A distributed service layer circulates status data pertaining to the plurality of heterogeneous nodes throughout the interconnection ... 11/24/05 - 20050259571 - Self-healing hierarchical network management system, and methods and apparatus therefor A hierarchical network management system (NMS) in which a plurality of NMS managers, each responsible for different portions or aggregations of a communications network, are logically arranged in a tree structure. The NMS managers are further organized into various sub-groups. The NMS managers within each sub-group monitor the status of ... 11/03/05 - 20050243715 - Self-routing, staff-coupler-based communication network A self-routing communication network (100) having: a plurality of nodes (N1-N15); a plurality of star couplers (S1-S4) each having a plurality of inputs and a plurality of outputs; and communication paths coupled between the plurality of star couplers and the plurality of nodes for communicaton therebetween of frames of information, ... 10/20/05 - 20050232145 - Systems and methods of providing redundant communication to an electronic device In at least some embodiments a system may comprise a first master device, a second master device, a redundancy manager coupled to the first and second master devices, and a slave device coupled to the redundancy manager. The redundancy manager is operable to receive a first data stream from the ... 10/06/05 - 20050220007 - Method for the discovery of devices connected to an ip network and device to carry out said method The present invention relates to IP networks and, more particularly, local area networks, for example home networks. It concerns the manner in which devices connected to such networks obtain and update knowledge of the other compatible devices connected to the network. To do this, the invention is based on a ... 09/15/05 - 20050201274 - Method and system for path change root-cause identification in packet networks A method and system for identifying the root-cause event that affected a path change in a multi-area Internet protocol (IP) autonomous system (AS) operated according to a link state routing protocol such as the Open Shortest Path First (OSPF) protocol is disclosed. The method and system may enable a user, ... 09/01/05 - 20050190691 - High-frequency switch apparatus A high-frequency switch apparatus includes a switch circuit, a terminal and a logical inversion circuit. The switch circuit includes a first FET which has a first threshold voltage and makes a path of a transmission signal conductive or cut off and a second FET which makes a path of a ... 08/18/05 - 20050180317 - Server backup device A server backup device comprises a unit detecting the failure of an IP Centrex server and a unit rewriting a destination address in a prescribed message transmitted from a terminal for intra-office communication between terminals on a network during the failure from the address of the server backup device to ... 07/07/05 - 20050147028 - High-availability router redundancy method and apparatus A redundancy method and apparatus for a default router of hosts in a local area network (LAN). The router redundancy system includes an active router and at least one standby router. The active router transmits a periodic advertisement message. The standby router determines whether a periodic advertisement message is received ... ### FreshPatents.com Support |