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Method and apparatus for uninterrupted packet transfer using replication
over disjoint paths
A method of operating a fault tolerant connection in a network is described. The network includes a number of network elements and a number of links. Each of the...
Method and apparatus for selecting a first clock and second clock for first
and second devices respectively...
A method and apparatus for synchronizing clocks is provided that is flexible and compensates for process, voltage, and temperature (PVT) variations and other...
Policy engine which supports application specific plug-ins for enforcing
policies in a feedback-based, adaptive...
A feedback-based adaptive network is described wherein at least a portion of the network elements report operating information relating to network conditions to...
Network management systems that receive cross connect and/or other circuit
information from network elements
A network management systems (NMS) queries network elements (NEs) and receives information on cross connects set up at the NEs and other circuit information....
System and method for transcoding multiple channels of compressed video
streams using a self-contained data unit
A system for transcoding multiple channels of compressed video streams using a self contained data unit such as an autonomous frame includes an autonomous frame...
Configurable channel associated signaling ("CAS") line signaling using
plain text strings
An apparatus for configuring CAS line signaling using plain text strings includes at least one configurable CAS plain text line signal template having...
UTOPIA 2--UTOPIA 3 translator
A system for an interface between a physical layer and a communication network. The system comprises a UTOPIA 3 physical layer receiver (23) operable to receive...
Load sharing and redundancy scheme
Methods and apparatus for providing a device for forwarding packets in a network are disclosed. A first router and a second router having a shared set of...
Multihop nested tunnel restoration
A network communications tunnel is established by assigning a unique label to each communications link between adjacent nodes in a pre-defined network path. A...
Method and apparatus for a graceful controller switchover
A method and apparatus for switching from a primary network controller to a secondary network controller. A switchover request is received. Messages accepted by...
Method and apparatus for phase aligning two clock signals utilizing a
programmable phase adjustment circuit
An apparatus, method, communications device and computer readable medium for phase aligning two clocks and providing a graceful switch between active and standby...
Validating connections to a network system
A mechanism for authenticating multiple connections to a network server is disclosed. A client establishes a first connection to the server. In establishing the...
System and method for suppressing side-effect alarms in heterogenoeus
integrated wide area data and...
A method and apparatus for suppressing side effect alarms in a network communication system, based on state change and the alarm reporting history of logical...
Methods and apparatus for providing shared access to an application
The system of the invention provides a collaboration adapter which can be integrated into a web server or a web/application server to allow multiple computer...
Method and apparatus for reducing the required size of sequence numbers
used in resequencing packets
In one implementation, a first set of packet switch sequence numbers is used for end-to-end resequencing of packets within a packet switch, and a second set of...
Crosspoint switch with independent schedulers
An apparatus is described comprising an ingress port and a plurality of switch planes where each of the switch planes has a dedicated scheduler and each of the...
Network availability monitor
A method and system for measuring availability of a high-availability network that includes interconnected routers and switches. One embodiment of the present...
System and method for maintaining a plurality of media conferences
A system for maintaining a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the...
Frequency synthesizer using a VCO having a controllable operating point,
and calibration and tuning thereof
A frequency synthesizer, a calibrator thereof, and an operating controller thereof are described. The synthesizer comprises a main charge pump that drives a...
Method and apparatus for enhancing periodic ranging for cable modems
Disclosed is a cable modem termination system (CMTS) capable of outputting periodic ranging opportunities. The CMTS includes an upstream receiver and demodulator...
Method and apparatus for identifying a data communications session
A method and apparatus for using a session identifier to identify a specific data communications session between an apparatus and an external apparatus is...
Handling packet fragments in a distributed network service environment
A system and method for providing a network service is described. A fragment criteria is sent from a service manager to a forwarding agent that instructs the...
Distributed network traffic load balancing technique implemented without
The technique of the present invention provides a solution to the problem of routing or redirecting a given client to a replica or proxy server which has a...
System and method for securing voice mail messages
A system is provided for securing voice mail messages. The system includes a packet network and a telephony device that is coupled to the packet network. The...
Method and apparatus for handling telephone calls
An electronic method and apparatus for handling telephone calls is described. The method includes storing in a memory a telephone number template. The template...
Universal protocol conversion
A scalable, programmable software based application run on a programmed general purpose digital computer is used for interconnecting a plurality of heterogeneous...
The invention uses a layer 2 switch (L2 switch), or bridge, to separate user's message traffic by use of Virtual Local Area Networks (VLANs) defined within the...
Search engine interface system and method
A search engine interface system comprising a header analyzer, which is coupled to a search engine interface adaptor that receives from header parser via a...
Method and apparatus for managing a subtended communication network
A subtended communication network includes a first node servicing a plurality of first subscribers and having a subtend module and a corresponding first...
Block mask ternary CAM
The invention provides a method and system for flexible matching of data in a CAM, that does not use the overhead of one mask bit for each matched value bit. The...
Router software upgrade employing redundant processors
Systems and methods for replacing software controlling active routers while minimizing impact on network operation are provided by virtue of one embodiment of...
Method and apparatus for automatically provisioning data circuits
The present invention discloses a method and apparatus for automatically provisioning data stitching circuits within a network element (NE). Data circuits are...
Dial-out link selection via static route redistribution
Dial-out route service is forwarded by a gateway to reduce congestion in a data communication network. The first gateway determines availability of it ports to...
Method for blocking denial of service and address spoofing attacks on a
A method is provided for blocking attacks on a private network (12). The method is implemented by a routing device (10) interconnecting the private network (12)...
Proxy browser providing voice enabled web application audio control for
A unified web-based voice messaging system provides voice application control between a proxy browser having a web browser, and an application server via an...
Generic command interface for multiple executable routines having
character-based command tree
A processor based system includes a parser, configured for identifying whether an input word received from a user is a new command word relative to a...
Adaptive bucket indexing mechanism to effectively manage service activation
A method for decomposing a service activation request (SAR) into sub-requests for specific network resources and classifying the SAR with an adaptive bucket...
Method and apparatus of framing high-speed signals
A method for high-speed signal framing of an incoming bit stream includes receiving the incoming bit stream in a datapath and locating a predetermined framing...
Computerized diagnostics and failure recovery
Computerized diagnostic and failure recovery techniques are provided. The techniques of the present invention permit a component object model (COM) server...
Method and apparatus for connecting two-wire serial interface and
single-wire serial interface with high...
A two-wire interface having a receive wire and a transmit wire is coupled for communication with a single-wire serial interface to provide for relatively...
System and method for automatically determining whether a product is
compatible with a physical device in a network
A system and method for interfacing with a component located in a network environment is provided. A user in a network environment can connect to a device on the...
Method for automated network availability analysis
A method for automated network availability analysis. A network availability analysis system receives a network topology specified by a user. The network...
Devices, methods and softwares for telecommunication service provider to
receive fax on behalf of subscriber on...
A routing switch made according to the invention is controlled by a Telephone Service Provider ("TSP"). Voice telephone calls of a subscriber with the new...
Voice over IP voice mail system configured for placing an outgoing call and
returning subscriber to mailbox...
An IP telephony gateway and a voice mail resource enable a voice mail subscriber to place an outgoing call to a destination party from a voice mail session via a...
Apparatus and method for reducing queuing memory access cycles using a
distributed queue structure
To reduce the number of memory access cycles required to process each data element in a data networking device having one or more queues and a corresponding set...
Efficient network multicast switching apparatus and methods
Efficient switched network multicasting techniques are provided. Incoming multicast packets are processed by a central forwarding engine (CFE) in a network...
Method and apparatus for updating and synchronizing forwarding tables in a
distributed network switch
A mechanism and technique updates and synchronizes forwarding tables contained on line cards that are interconnected by a switch fabric of a distributed network...
Concatenation detection across multiple chips
An apparatus and method for detecting concatenation of payload data for an communication circuit is disclosed, wherein the payload data is dispersed over a first...
Method and apparatus for accumulating and distributing data items within a
packet switching system
Methods and apparatus are disclosed for accumulating and distributing information in a packet switching system. For example, it is desirable in certain packet...
Cascading multiple services on a forwarding agent
A system and method are disclosed for providing a plurality of network services. The method includes receiving at a forwarding agent a plurality of matching...