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7346722 |
Apparatus for use in a computer systems
Apparatus for use in a computer system comprises a bus architecture, a plurality of modules connected to the bus architecture, at least one module being latency tolerant and at least one module...
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7283547 |
Switch fabrics logical synchronization utilizing propagation lockdown
A switch includes a port card for receiving packets from and sending packets to a network. The switch includes a fabric connected to the port card for switching the packets. The fabric has memory...
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7260518 |
Network flow switching and flow data report
The invention provides a method and system for switching in networks responsive to message flow patterns. A message “flow” is defined to comprise a set of packets to be transmitted between a...
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7116669 |
Format for automatic generation of unique ATM addresses used for PNNI
The invention provides a method and system for providing unique ATM End System Addresses, in which each new device is assigned a unique address in an ATM network while allowing all new devices...
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7058016 |
Method and system for accelerating route calculation in link state routing protocols
A method for performing route calculations in a link state routing protocol at a node within a computer network. The method includes evaluating existing routes of the node when new route...
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7054263 |
Synchronous change of switchplane
A change of switch plane operation is performed in a multi-plane cell switching node ( 20 ) which has a first switch plane ( 22 ); a second switch plane ( 24 ); and plural switch port interface...
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7042850 |
Focused link state advertisements
A network router generates node state advertisements identifying network links about which the router node desires to receive link state information. The node state advertisements are flooded to...
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7002955 |
Selective address table aging in a network switch based on application state determined from a received data packet
A network switch, configured for performing layer 2 and layer 3 switching in an Ethernet (IEEE 802.3) network without blocking of incoming data packets, includes a network switch port having a...
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6920112 |
Sampling packets for network monitoring
The invention provides a method and system for collecting aggregate information about network traffic, while maintaining processor load relatively constant despite substantial variation in network...
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6914877 |
System for alerting a network of changes in operational status of communication links
A system for informing nodes in a network of the operational status of links. Each node examines the links connected to it. When a change in status is detected, the node records the change, and...
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6889181 |
Network flow switching and flow data export
The invention provides a method and system for switching in networks responsive to message flow patterns. A message “flow” is defined to comprise a set of packets to be transmitted between a...
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6862284 |
Format for automatic generation of unique ATM addresses used for PNNI
The invention provides a method and system for providing unique ATM End System Addresses, in which each new device is assigned a unique address in an ATM network while allowing all new devices...
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6851035 |
Method and apparatus for storing data packets with a packet boundary indicator
An apparatus for storing packets. The apparatus includes a memory for holding packets. The apparatus includes a mechanism for storing at least two packets in the memory with only one packet...
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6823395 |
Arrangement and method relating to routing in a network
Apparatus, system and method for managing and monitoring the routing in a communications network is presented. The network includes a number of routing domains which in turn include a number of...
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6778502 |
On-demand overlay routing for computer-based communication networks
Methods and apparatus are disclosed for dynamically discovering and utilizing an optimized network path through overlay routing for the transmission of data. A determination whether to use a...
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6711411 |
Management of synchronization network
Operation of a synchronization network that includes a number of nodes and reference clock distribution logic includes, at each of the nodes, storing a table that represents a most recent status of...
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6654354 |
System and method for planning multiple MUX levels in a fiber optic network simulation plan
A system and method for optimizing placement of network equipment and information load in a network over a period of time. A demand input structure having a plurality of demands organized by their...
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6473405 |
On-demand overlay routing for computer-based communication networks
Methods and apparatus are disclosed for dynamically discovering and utilizing an optimized network path through overlay routing for the transmission of data. A determination whether to use a...
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6370121 |
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 traffic across the blocked link includes...
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6356530 |
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 that network. The cell rate...
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6275470 |
On-demand overlay routing for computer-based communication networks
Methods and apparatus are disclosed for dynamically discovering and utilizing an optimized network path through overlay routing for the transmission of data. A determination whether to use a...
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6188675 |
System and method for self-identifying and configuring the nodes of a network
A system and method for progressively identifying and configuring the nodes of a network having an unknown or partially unknown topology are presented. A special all-node address indicator is...
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5970502 |
Method and apparatus for synchronizing multiple copies of a database
A method for synchronizing a first database with a second database in which the first database contains a plurality of database records. The first database is divided into a plurality of segments....
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5854899 |
Method and apparatus for managing virtual circuits and routing packets in a network/subnetwork environment
A system for managing virtual circuits and determining proper routing of packets in a network environment. The network includes a connection-oriented subnetwork and an arrangement of routers...
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5781537 |
Setting up, taking down and maintaining connections in a communications network
An efficient distributed technique for setting up, taking down, and updating connections in a communications network, which is robust in the presence of failures. More specifically with this...
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5781534 |
Method and apparatus for determining characteristics of a path
An information gathering mechanism efficiently acquires information about a path interconnecting a source node and a destination node in a computer network. The mechanism comprises a novel packet...
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5721843 |
Optimizing network utilization by using image reconstruction techniques
In a communications network techniques are disclosed for optimizing node interconnection based upon the number of communications pathways to be provided by each of the nodes. For each node, the...
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5699358 |
Method for traffic routing in a communications network
In order to determine the second path in the case of non-availability of a direct path between neighboring switching nodes, there are held in the individual switching nodes priority lists in which,...
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5699347 |
Method and apparatus for routing packets in networks having connection-oriented subnetworks
A system for routing packets in a network environment having a connection-oriented subnetwork, a plurality of routers coupled to said connection-oriented subnetwork, and a plurality of established...
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5657142 |
Optimal allocation of multiplexing equipment and distribution of load in a fiber optic network
A system and method optimize a fiber optic network arrangement in terms of load balancing and equipment placement at network sites. The present invention accomplishes this optimization by...
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5655134 |
Network structure storing and retrieval method for a data processor
A link information storer stores link connection information and a node information storer stores node label information by sequentially searching links from the beginning of a network when data in...
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5654958 |
System and method for learning and dynamic routing of data in a mobile communication network
A communications system (20) and method (100) learns and dynamically selects routes among a number of nodes (1-12) based on network state information. Each of the nodes (1-12) monitors its links...
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5633866 |
Method and apparatus for routing packets in networks having connection-oriented subnetworks
A system for routing packets in a network environment having a connection-oriented subnetwork, a plurality of routers coupled to said connection-oriented subnetwork, and a plurality of established...
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5583862 |
Method and apparatus for routing for virtual networks
An internetwork routing protocol which supports virtual networks. Routing tables are maintained in routers or gateways which identify whether or not a destination is directly reachable by the...
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5579307 |
Packet routing system and method with quasi-real-time control
In a system that includes a constellation of satellite communication nodes, information packets are routed through the constellation using routing tables stored in each communication node. When a...
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5577028 |
Routing system using a neural network
A routing system in a multimedia integrated network formed of nodes connected by links is provided for transmitting various media such as voice, image and data in a packet format. The respective...
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5572512 |
Data routing method and apparatus for communication systems having multiple nodes
A method and apparatus for balancing data packet routing through a communication system (10) and for routing data packets based on their type is accomplished by using multiple routing table pages...
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5546540 |
Automatic topology monitor for multi-segment local area network
A local area network (LAN) topology monitor including segment monitor nodes which report the presence of new end nodes to a network manager node. The segment monitors send a test-node message when...
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5537394 |
Routing system for communications network
A process information generating section produces a communication process information necessary for a communication process. A status predicting section receives a statistically-processed status...
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5517620 |
Dynamic updating of routing information for routing packets between LAN's connected to a plurality of routers via a public network
Connected to different routers of a packet routing network through a public network and to local area networks (LAN's) and comprising a routing table keeping routing information for an optimum path...
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5506993 |
Message packet transmitter
A message packet transmitter for transmitting a packet of electronic data signals onto a communication network without interruption. A first-in, first-out electronic memory has a transmit state in...
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5499237 |
Waste canceling packet routing system and method
In a system that includes a constellation of satellite communication nodes, information packets are routed through the constellation using routing tables stored in each communication node. The...
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5481673 |
Method for cluster routing in direct link using two associated routing tables at node or signaling transfer point
Method and apparatus for cluster routing and management of information from a remote node of a communications network to a network cluster in the presence of at least one direct linkset extending...
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5467345 |
Packet routing system and method therefor
Information packets are routed among a constellation of satellite nodes in a communication system in a distributed, yet systematic fashion. Routing tables for each node are generated in advance by...
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5317566 |
Least cost route selection in distributed digital communication networks
A distributed digital communications network has an originating node and a multiplicity of destination nodes. The various nodes are interconnected by links and at least some of the nodes are...
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5282195 |
DSO cross-connect for floating virtual tributaries
A method and apparatus for cross-connecting arbitrary fragments of an incoming virtual tributary synchronous payload envelope, or arbitrary fragments of any incoming transmission stream, at a...
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5243592 |
Method and apparatus for distance vector routing on datagram point-to-point links
A technique for distributing updated distance vectors used in routers, which are connected by point-to-point links having datagram service. Distance vectors are used by routers to route messages...
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5241533 |
Packet switching network with alternate trunking function
In a packet switching network, in order to transmit a packet effectively, after transmission of a first packet from a source node to a destination node, a data for inhibiting a packet from being...
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