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Communication server apparatus and method
A communication server maintains profile information on twisted pair lines in a profile table. This profile information may be generated in a training session...
PCB vertical and horizontal guide
A guide device receives and engages a cutout in a distal pin-bearing edge of a printed circuit board for aligning pins with pin sockets. The alignment device...
Method for compile-time type-checking of arguments for externally-specified
A method for type-checking format arguments during compile time which uses data in an external file. Data from the external file is converted into a generated...
Multiple network connections from a single PPP link with partial network
Multiple simultaneous network connections from a single PPP connection may be accomplished. A primary PPP connection is established between a user and a first...
Computer system and method for characterizing and distributing information
A system enables a consumer to generate a filtering program based on criteria set forth by a system operator during run time. During system operation, the...
Test information management system
A centralized test information management system and method for its operation are disclosed. The system is implemented on a server that communicates with remote...
Method and apparatus for generating parity for communication between a
physical layer device and an ATM layer...
A method and apparatus are provided for generating parity for communication between a physical layer device and an ATM layer device is provided. A data bus is...
System and method for monitoring line performance in a digital
System for monitoring the performance of at least one line at a node of a digital communication network, such a system including a set of hardware registers...
Mechanism for determining actual physical topology of network based on
gathered configuration information...
A mechanism for determining the actual physical topology of network devices in a network is disclosed. To determine a physical topology, a discovery mechanism...
Method and apparatus for generating user-specified reports from radius
A method and apparatus are provided for generating a report that summarizes performance of a network based on actual network performance data formatted according...
System for clock recovery
A decoding system having a clock recovery system for maintaining the optimum time for sampling a signal. The clock recovery system is particularly useful in...
Transmitter incorporating spatio-temporal processing
A space-time signal processing system with advantageously reduced complexity. The system may take advantage of multiple transmitter antenna elements and/or...
Access control list processing in hardware
The invention provides for hardware processing of ACLs and thus hardware enforcement of access control. A sequence of access control specifiers from an ACL are...
Multi-part optical safety clip
A multi-part shielding system obstructs an energy source opening within a connector housing when no connector is present within the housing. The shield is at...
Multiple bank CAM architecture and method for performing concurrent lookup
Content-addressable memory (CAM) architectures and methods of use are disclosed for enabling multiple concurrent lookups within a CAM array. One implementation...
HTU-C clocking from a single source
An apparatus and method are provided for generating a plurality of data frames in a DSL modem configured as an HTU-C device using a single clock source. The...
Dial access stack architecture
A Dial Access Stack Architecture (DASA) includes a stack of Network Access Servers (NASs) each independently establishing and processing information for...
Data network protocol conformance test system
A modular data network protocol conformance test system is designed to make distinct the key functionality that is required in protocol conformance testing such...
Method and apparatus for configuring an internet appliance
The Internet appliance accesses an HTML page on a Web site containing configuration information for an Internet appliance, such as an Internet compatible...
Method and system for shortcut trunking of LAN bridges
The invention provides a method and system for routing traffic between LAN bridges. A method and system for enabling a blocked link to allow forwarding of...
Computing the widest shortest path in high-speed networks
A method and system is described for determining the optimal path for routing a communication in a communication network between a source node and at least one...
Portable internet access device
Loop integrity test device and method for digital subscriber line (XDSL)
A digital subscriber line (xDSL) communication system (10) is disclosed that allows xDSL communication across a local loop. The system (10) includes a local loop...
TDM backplane stream resource distribution system
A preferred embodiment of the present invention is disclosed to include a router system having a trunk feature card and at least one modem feature card for...
Network router integrated onto a silicon chip
A router is integrated onto a single silicon chip and includes an internal bus that couples multiple data receive and transmit channels to a central processing...
Method and apparatus for maintaining connection state between a connection
manager and a failover device
A system and method are disclosed for maintaining the state of a virtual connection supported by an active connection manager on a standby connection manager....
Holder for closely-positioned multiple GBIC connectors
A frame or similar structure is used for positioning two stacked GBIC connectors within a 1 RU form factor height of a router or similar network device. In one...
Optical transceiver EMI detuning device
A transceiver for the transmission and reception of high speed optical signals contains a detuning structure which reduces the gain for quarter wave radiation of...
Automatically integrating an external network with a network management
A mechanism and method for integrating a managed network with a network management system is described. The network management system is used to manage,...
Transparent circuit emulation for packet switching network
A communications network is made up of a number of nodes. Frames of data transported on a circuit line are received at a first node of the network and segmented...
Data processor with trie traversal instruction set extension
A programmable data communications device is provided to process multiple streams of data according to multiple protocols. The device is equipped with a...
Switched virtual circuit controller setup congestion management strategy
A method that specifies a congestion management strategy for a SVC (Switched Virtual Circuit) controller in a connection-oriented network. The rate of setup...
Pooled receive and transmit queues to access a shared bus in a multi-port
A multi-port switching device architecture decouples decode logic circuitry of each port of a network switch from its respective state machine logic circuitry...
Next hop selection in ATM networks
The invention provides a method and system for selecting one particular interface between a pair of adjacent nodes in an ATM network for assignment to a call in...
Fast look-up table based scheme for NRZI encoding/decoding and zero
insertion/removal in serial bit streams
A look-up table scheme for performing non-return-to-zero inverted (NRZI) encoding on input data bytes. Also disclosed is a look-up table scheme for performing...
Method and apparatus for automating the creation of service activation
An automated method and apparatus for classifying a customer service activation request (SAR) according to whether repeatable, schedulable, or scaleable elements...
Apparatus and method for maintaining packet ordering over parallel links of
a crossbar based switch fabric
A data exchange system includes at least one transmitting agent, at least one receiving agent, and a plurality of data links each having a crossbar coupling...
BLSR node extension
The present invention provides a method and structure for allowing more than 16 nodes to be configured in a single SONET BLSR network by utilizing unused...
Interchangeable backplane interface connection panel
A system and method for converting the numerous quantities, types, and arrangements of plug-in card connectors, usually disposed on the backplane of equipment...
AC/DC power accommodation method and apparatus for
An adaptor is provided for effectively converting an opening in the chassis or box of a router (or similar device) from an opening which accommodate a power...
Detecting an active network node using a login attempt
A method and apparatus for notifying a first network node that a second network node has gone off-line during a communication session is disclosed. The first...
Application programming interface for modem and ISDN processing
An application programming interface provides for command and data communication between a user, application or driver and a telephone data processing system...
Methods and apparatus for remote configuration of an appliance on a network
A network appliance is capable of remote booting and obtaining its configuration information from a source located far away. The network appliance can be shipped...
Method and apparatus for multiplexing of multiple users on the same virtual
The invention provides a method and apparatus for communicating to a destination node over a broadband network from plural users connected to an access node. A...
Cache blocking of specific data to secondary cache with a first and a
second OR circuit
A cache blocking mechanism ensures that transient data is not stored in a secondary cache of a router by managing a designated set of buffers in a main memory of...
Arrangement for preventing looping of explorer frames in a transparent
bridging domain having multiple entry points
A transparently-bridged wide area network connecting Ethernet/IEEE 802.3-based local area networks uses redundant proxy devices on each LAN for internetwork...
Single-chip architecture for shared-memory router
The invention provides a single-chip method. The method includes a memory shared among packet buffers for receiving packets, packet buffers for transmitting...
Method for comparison between a pattern sequence and a variable length key
A method is disclosed for comparing a pattern sequence with a variable length key. A first bit of this sequence is identified by a pointer, the length and the...
ATM node having local error correcting procedures
A telecommunication node for an Asynchronous Transfer Mode (ATM) telecommunication network performs Segmentation and Reassembly (SAR) of ATM cells. The SAR...
Peer-model support for virtual private networks with potentially
A service provider's routers (PE1, P1, P2, PE2) provide connections between and share routine information with routers (CE1, CE2) of a customer virtual private...