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| Number | Title | Issue Date |
| 5608649 | Directly programmable networks A procedure for establishing a scalable spanning tree over a network composed of nodes and links in which the resources for each node is independent of the size of the network. The procedure involves the selection of a set of states, a set of messages, st... | 03/04/1997 |
| 5600794 | Method and apparatus for managing exchange of metrics in a computer network by exchanging only metrics used by a node in the network A method for minimizing advertising of metrics in a network. The described invention minimizes advertising of metrics by providing for each node to identify to the other nodes the metrics it will utilize in path selection. Each node then advertises only t... | 02/04/1997 |
| 5596722 | Packet routing system and method for achieving uniform link usage and minimizing link load Data packets are routed among nodes of a communication system in a uniform fashion. Substantial uniform link usage is achieved within allowed routes determined by end to end transport delay criteria. Initial routes are selected for each source--destinatio... | 01/21/1997 |
| 5594734 | Asynchronous processor access to a switch table in a network with isochronous capability A data communication system, such as a local area network, is provided with a capability of transmitting isochronous data. Preferably the system conveys both isochronous data and non-isochronous data by time-multiplexing the data into a recurring frame st... | 01/14/1997 |
| 5581757 | Partially replicated database for a network of store-and-forward message systems Method for generating and maintaining a user name database in a network of store-and-forward message system nodes, wherein databases associated with the individual nodes of the network are not completely replicated. In accordance with the present inventio... | 12/03/1996 |
| 5568605 | Resolving conflicting topology information A topology manager external to a communications network manages the network and in particular resolves conflicting topology information about the network by dividing the management of the topology data base into two operations--a collection instance and a... | 10/22/1996 |
| 5563878 | Transaction message routing in digital communication networks Packet messages transmitted on a packet communications network include origin and destination addresses in the form of stacked address elements which can be pushed or popped off of the stack. A plurality of interconnected packet communications network inc... | 10/08/1996 |
| 5557745 | Method for supporting foreign protocols across backbone network by combining and transmitting list of destinations that support second protocol in first and second areas to the third area A method of transferring foreign protocol information across a hierarchical backbone network is disclosed. The hierarchical backbone network operates according to a first protocol and includes multiple areas, some of which have a destination that operates... | 09/17/1996 |
| 5542047 | Distributed network monitoring system for monitoring node and link status A distributed network monitor system distributes the network monitoring function among each of the nodes of a multiple network system, such that monitor software resident in each node is responsible for providing status information about that node and its... | 07/30/1996 |
| 5541911 | Remote smart filtering communication management system Network traffic from a central device across a communication link to a remote device is controlled based upon central traffic management resources in the central device. The central traffic management resources are coupled to a communication link and moni... | 07/30/1996 |
| 5539881 | Network element including automatic network element identity information registration apparatus and method In a telecommunications management network including a network element provisioned as a so-called Directory Services Network Element (DSNE) and at least one sub-network intended to include one or more network elements, automatic registration network eleme... | 07/23/1996 |
| 5526488 | Dynamic switching system for switching between event driven interfaces in response to switching bit pattern including in data frame in a data communications network A system is disclosed for the dynamic switching between a first Event Driven Interface and a second Event Driven Interface based upon inband information contained in the data frames of a data communications network. This enables the selective realtime tra... | 06/11/1996 |
| 5521972 | Communications system reconfigurable with reduced network configuration data In a reconfigurable communications system, circuit status bits are stored in a first matrix of rows associated respectively with predefined network configurations and columns associated, respectively, with predefined circuit configurations. Destination st... | 05/28/1996 |
| 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 between each pair of the LAN's, a local router comprises ... | 05/14/1996 |
| 5504921 | Network management system using model-based intelligence A network management system includes a user interface, a virtual network and a device communication manager. The virtual network includes models which represent network entities and model relations which represent relations between network entities. Each ... | 04/02/1996 |
| 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 between the remote node and the cluster. The communications... | 01/02/1996 |
| 5481674 | Method and apparatus mapping the physical topology of EDDI networks An apparatus and method for generating a topology map representing the physical connectivity between devices on an FDDI network. A network management station constructs a connectivity table by first selecting a port which feeds a medium access controller ... | 01/02/1996 |
| 5444851 | Method of accessing configured nodes in a facilities management system with a non-configured device A networked system having a wide variety of applications and particularly applicable to facilities management systems has multiple levels of software in processing nodes. The levels include a "features" processing level which communicates requests for dat... | 08/22/1995 |
| 5434798 | Reconfiguration in a cellular communications network A method and apparatus for performing reconfiguration of a cellular network is provided. Cell parameters of affected mobile switching centers in the network are copied to a database, and the copied parameters are stored. A set of proposed changes to the s... | 07/18/1995 |
| 5430729 | Method and apparatus for adaptive directed route randomization and distribution in a richly connected communication network In a global communication system that includes a constellation of satellite nodes that move with respect to each other, data packets are routed across communication links in a evenly distributed fashion. Uniform link usage is achieved within allowed route... | 07/04/1995 |
| 5404565 | Message tracking in a parallel network employing a status word at each node which reflects a message's progress A multiple node network is described wherein messages are transmitted between source and intermediate nodes to a destination node, the network including a message progress reporting system which employs a status word that enables the source node to determ... | 04/04/1995 |
| 5390303 | Communications system reconfigurable with reduced network configuration data In a reconfigurable communications system, circuit status bits are stored in a first matrix of rows associated; respectively, with predefined network configurations and columns associated respectively with predefined circuit configurations. Destination st... | 02/14/1995 |
| 5390351 | System for communicating with plural nodes in predetermined intervals depended on integers assigned and changed based upon configuration thereof A cost-effective motion control system communication architecture is provided that supports a centralized control node, distributed control nodes, and smart I/O peripheral control nodes. Networks designed using this architecture, which employs a serial bu... | 02/14/1995 |
| 5307465 | System for updating network topology based on configuration obtained from subset configuration composition matrix and switching node connection matrix for the subset configuration In a reconfigurable communications system, circuit status bits are stored in a first matrix of rows associated respectively with predefined network configurations and columns associated, respectively, with predefined circuit configurations. Destination st... | 04/26/1994 |
| 5287454 | Method for acquiring network knowledge about a digital transmission network Method for acquiring network knowledge in the individual operating locations of a digital transmission network having a plurality of network nodes. Following a computer outage, digital signal connections set up via central computers can no longer be recon... | 02/15/1994 |
| 5261096 | Interprocess message passing method in a distributed digital data system In a distributed data system serving a large geographical area and having several network management systems, each for managing system components in a portion of the geographical area, the system including a number of workstations at which administrative ... | 11/09/1993 |
| 5239653 | Switching device for balancing load in communication network based on source and destination load information and internal load information A data switching device embodying the invention mainly includes two input circuits, two output circuits, and a load regulating circuit. The two input circuits are respectively connected to two source devices transmitting data messages. The two output circ... | 08/24/1993 |
| 5191650 | Virtual chains for session initiation in a distributed computer network A method for establishing and maintaining virtual chains in a distributed computer network during session initiation. In transmitting a session initiation request from an originating network node to a destination network node, a locate chain is establishe... | 03/02/1993 |
| 5142624 | Virtual network for personal computers A network for personal computers includes a network arbiter (10) disposed centrally with respect to a plurality of network stations (12), (14), (16), and (18). Each of the network stations (12-18) includes a personal computer (20), a network peripheral (2... | 08/25/1992 |
| 5109483 | Node initiating XID exchanges over an activated link including an exchange of sets of binding signals between nodes for establishing sessions Enhanced type 2.1 nodes for SNA networks provide network routing of information between non-adjacent network nodes and program-to-program linkage across the network. These nodes are called "advanced peer to peer networking" (abbreviated APPN) nodes. Netwo... | 04/28/1992 |
| 5101348 | Method of reducing the amount of information included in topology database update messages in a data communications network In a communications network, each network node can maintain its own list of network resources in a topology database. When the state of a resource "owned" by a particular node changes, that node broadcasts a topology database update (TDU) message to adjac... | 03/31/1992 |
| 5088032 | Method and apparatus for routing communications among computer networks An improved method and apparatus for routing data transmissions among computer networks. The computer networks are interconnected with a series of gateway circuits. Each gateway identifies all destination computers to which it is connected and identifies ... | 02/11/1992 |
| 4987536 | Communication system for sending an identical routing tree to all connected nodes to establish a shortest route and transmitting messages thereafter The communications network includes a plurality of interconnected nodes and communication links between nodes. Computing apparatus in provided for determining a shortest path from a starting node to a destination node. The computing apparatus is adapted s... | 01/22/1991 |
| 4912656 | Adaptive link assignment for a dynamic communication network An adaptive link assignment scheme for dynamically changing communication node topologies such as satellite networks, fleets of ships or aircraft, etc. Periodically each node in the network transmits topology information to all the nodes in the network. T... | 03/27/1990 |
| 4466060 | Message routing in a computer network An adaptive distributed message routing algorithm that may be implemented in a computer program to control the routing of data messages in a packet message switching digital computer network. Network topology information is exchanged only between neighbor... | 08/14/1984 |
