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Establishing and maintaining master and standby LAN emulation server
connections to provide a fault tolerant ELAN
A system and method are disclosed for transferring an enhanced LAN Emulation Client from a first LAN Emulation Server to a second LAN Emulation Server. The...
Methods and apparatus for discovering a powerability condition of a
The invention is directed to techniques for discovering a powerability condition of a computer network such as the existence of a remotely powerable device...
Method and apparatus for identifying a networked client modem
A method and apparatus for identifying one or more characteristics of a networked device, such as a client modem, is disclosed. Values of one or more components...
Providing a stream of data to a browser to update properties on a page
A mechanism for supplying a stream of data to a browser is provided. The browser periodically refreshes a frame document, transmitting a request for the frame...
Apparatus and method for providing a device level security mechanism in a
A method and apparatus for filtering a packet in a network is disclosed. The packet includes a packet header and packet data. The packet is intercepted. It is...
Method and apparatus for configuring permanent virtual connection (PVC)
information stored on network devices...
A method and apparatus retrieves and stores configuration information for network endpoint devices from other devices in the network, such as a switch adjacent...
Method and system for testing a utopia network element
A method for testing a network element includes receiving from a network element into a buffer (40) a first clock signal (25) of the network element. The method...
System and method for determining the environmental configuration of
A system and method determines the environmental configuration of telecommunications equipment having interchangeable components to provide an alarm if an...
Method and apparatus for coupling circuit boards
A method and circuit board assembly provide a zero interconnection height in a board-to-board interconnect while maintaining efficient space allocation for...
Apparatus and method for improving performance of critical code execution
Critical code routines are identified, separated from other routines, and compiled into a set of one or more critical dynamic link libraries ("DLLs"). These are...
HTTP-based load generator for testing an application server configured for
dynamically generating web pages for...
A testing system for an application server configured for providing a unified web-based voice messaging system using voice application control between a web...
Use of cyclic redundancy checking for segregating control traffic
A method of modifying the error detection code (EDC) generation and verification logic at both ends of a communications link in a data communications device or...
Distributed packet processing using encapsulation and decapsulation chains
A method for processing packets includes specifying a primary chain of function elements on a primary processor and specifying a secondary chain of function...
Healing of incomplete circuits in networks
A network management system (114) automatically heals incomplete circuits through a network element (120C) in response to a network manager's command to heal...
Distributing and synchronizing a representation of time between components
of a packet switching system
Methods and apparatus are disclosed for distributing and synchronizing a global time among components of a packet switching system. A global time is kept by a...
Method and apparatus for class based transmission control of data
connections based on real-time external...
A system of wireless network with capabilities of transporting data packets, wherein the data transmission activity of each data connection is determined using...
Method and apparatus for auto-configuring layer three intermediate computer
A method and apparatus for auto-configuring layer 3 intermediate devices in computer networks by extending the Dynamic Host Configuration Protocol (DHCP). The...
Shared variable gain amplifier for WDM channel equalization
An amplification architecture for WDM receiver systems. The WDM channel grid is divided into groups of adjacent channels. A separate optical amplifier is...
Angled fiber optic connector
A fiber optic connector module is presented that has one or more male fiber optic connectors on one end of an angled molded body and a corresponding number of...
System and method for periodic retransmission of messages
A method for retransmission of messages includes transmitting a first message from a source to a destination using a packet-based network. The destination is...
Method and apparatus for hitless switchover of a voice connection in a
voice processing module
A method and apparatus is described that provides for switching active data connections from one processor to another processor without significantly interfering...
System and method for suppressing out-of-order side-effect alarms in
heterogeneous integrated wide area data...
A method and apparatus for suppressing side effect alarms in a network communication system that arrive out of order, based on state change and the alarm...
Call optimization in meet-me conference calls
A method for joining a meet-me conference call includes establishing a Call Optimization Application (COA) channel between a Multipoint Controller-Call...
System and method for retrieving network management table entries
Systems and methods for retrieving table entries within a network management system are provided. A method includes receiving a request for table entries which...
Monitored suspension of communications sessions
A communications apparatus establishes a communications session with a remote location and receives a request to place the communications session into monitored...
Technique and apparatus for using node ID as virtual private network (VPN)
A technique is provided for managing VPN packet flows over shared access data networks. Each node in the shared access network typically has an identifier or ID...
Fault handling process for enabling recovery, diagnosis, and self-testing
of computer systems
Methods, apparatus, and computer program products are disclosed for analyzing and recovering from severe to catastrophic faults in a computer system. When a...
Fault tolerant telephony control
In accordance with the present invention, a telephony control fault tolerance technique is provided. In one embodiment of the technique of the present invention,...
LCD power loss indication
A device that provides a display indicating an absence of power to an LCD is disclosed. The device includes a continuous polarizing filter layer disposed within...
Method and apparatus for implementing fault-tolerant processing without
duplicating working process
Systems and methods for implementing a memory-efficient fault tolerant computing system are provided. A generic backup process may provide fault tolerance to...
Method and system for controlling the supply of power to a circuit card in
a card shelf through an activation...
A method and system for controlling the supply of power to a circuit card in a card shelf includes automatically generating a deactivation signal in response to...
Automated free entry management for content-addressable memory using
virtual page pre-fetch
A method of managing free entries in a CAM using virtual page pre-fetch is defined. The memory locations in a CAM are partitioned into multiple virtual pages...
Network traffic visualization
A system containing a visualization application which enables the user or other user to obtain information about various types of transactions involving the...
Network management system and method of operation
A network management server manages multiple network devices coupled to a communication network. A simulation device coupled to the communication network uses...
Localization support method for software applications with backend database
A server application program is disclosed that runs on a server and provides a client with multilingual support, but does not have a multilingual database on the...
Low memory and low latency cyclic prefix addition
Systems and methods for appending cyclic prefixes to OFDM bursts while employing minimal additional memory and adding minimal latency are provided. This...
Architecture for high speed class of service enabled linecard
A linecard architecture for high speed routing of data in a communications device. This architecture provides low latency routing based on packet priority:...
Method and apparatus for integrated wireless communications in private and
public network environments
A communications system extends over a cellular region formed of a plurality of wireless cells where each cell covers a portion of the cellular region. Each cell...
Backup service managers for providing reliable network services in a
A system and method are disclosed for providing a network service. A first criteria specifying a first set of flows from a first service manager is received at a...
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...
Repetitive pattern testing circuit for AC-coupled systems
A method for testing a signal path for mark ratio tolerance includes generating a varying test pattern by selecting between a first pattern and a second pattern...
Method and apparatus for distributing and updating group controllers over a
wide area network using a tree...
An approach for establishing secure multicast communication among multiple multicast proxy service nodes of domains of a replicated directory service that spans...
Network interface throttling mechanisms and methods
Methods and apparatus are disclosed for enabling a first one of a plurality of interfaces associated with a router. In one aspect of the invention, a method is...
Connection of an add/drop node
An add/drop node used in an optical network having two fiber paths for carrying light corresponding to a plurality of channels in opposite directions may include...
Methods and apparatus for redirecting network traffic
Methods and apparatus are described for controlling packet flow to a cache system is disclosed. A packet flow intended for a first destination is received into...
Frame synchronization and fault protection for a telecommunications device
A telecommunications device includes a synchronization bus. A first controller coupled to the bus generates first pulses and communicates the first pulses using...
Method and system for using virtual labels in a software configuration
The present invention provides a solution to the needs described in the present application through a system and method of using Virtual Labels in conjunction...
Processor isolation method for integrated multi-processor systems
A processor isolation technique enhances debug capability in a highly integrated multiprocessor circuit containing a programmable arrayed processing engine for...
Application appliance enabling operating system and applications to run
from a CDROM by determining local...
A machine having a non-volatile storage medium interface such as a CDROM drive and a local hard drive is configured for execution of an application process from...
Providing private network information during emergency calls
A telephony communication system includes a private network with multiple telephony devices that couples to the public switched telephone network (PSTN). During...