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7623534 |
Method and systems for content access and distribution
Distribution of content between publishers and consumers is accomplished using an overlay network that may make use of XML language to facilitate content identification. The overlay network...
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7620736 |
Network topology having nodes interconnected by extended diagonal links
A network topology links nodes with Cartesian and diagonal links. The diagonal links may be uniformly-extending iso-delta diagonal links of different lengths. The network topology may be used to...
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7616632 |
System and method of implementing contacts of small worlds in packet communication networks
A small world infrastructure (SWI) of a general packet communications network and a method of determining, establishing and maintaining a hierarchical forwarding path (HFP) interconnecting...
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7616589 |
Virtual LAN creation device
A spanning tree creation unit creates a plurality of spanning trees based on the network topology, and registers the spanning trees to a spanning tree information table. A spanning tree selection...
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7613134 |
Method and apparatus for storing tree data structures among and within multiple memory channels
Methods and apparatus are disclosed for storing tree data structures among and within multiple memory channels, which may be of particular use with, but not limited to tree bitmap data structures....
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7610050 |
System for mobile broadband networking using dynamic quality of service provisioning
A wireless networking system uses mobile and fixed transceivers to achieve a network with changing topology. A routing process includes quality-of-service considerations in the network to allow for...
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7609658 |
Method and system for identifying instability or a spanning tree protocol loop in a network
Methods and systems for identifying instability or a loop in a network. In one method, a first BPDU message is received at a switch indicating a topology change. The message includes a bridge...
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7606178 |
Multiple wireless spanning tree protocol for use in a wireless mesh network
An apparatus for, a method of, and a computer carrier medium carrying code to cause a processor to execute a method. The method includes running a plurality of instances of a wireless spanning tree...
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7599385 |
Method and apparatus for providing composite link assignment in network design
A method and apparatus for composite link assignment are provided such that network capacity is sufficient to handle all the traffic (e.g., load) while an objective function, e.g., the total cost...
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7596595 |
Efficient unicast-based multicast tree construction and maintenance for multimedia transmission
A multi-endpoint communication system comprising communication nodes linked in a tree structure by unicast connections includes a server to receive a request from a new communication node to join...
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7594028 |
Counting of GVRP protocol data units within a network bridge
Counters are implemented within an 802.1Q VLAN (Virtual Local Area Network) bridge model to assist a network administrator in diagnosing network problems associated with the dynamic registration of...
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7593341 |
Method and apparatus for updating a shortest path graph
A method and apparatus for updating a shortest path graph or a shortest path tree are disclosed. For example, an arc weight is changed for an arc in the network, where a plurality of affected nodes...
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7593326 |
Method and apparatus for managing bandwidth requirements for video on demand services
A method for managing bandwidth for transmitting the content of a video to users requesting the content. The total time duration T of the video is divided into N consecutive sessions. A unicast or...
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7586927 |
Multistage cascade arbiter
Multiple comparators compare the enable and priority values for multiple inputs and select a winner from one of the inputs. Multiple comparator stages each include one or more of the comparators....
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7586891 |
Communication network optimization tool
A method for converging on a route through a radio frequency (RF) communications network, that includes multiple nodes, includes (a) identifying all RF links between each node in the RF...
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7580382 |
System and method for distributed channelized group formation in a mobile wireless communication network
A method for forming channelized groups in a wireless communication network having a plurality of nodes. At least one node in the network is assigned to a first channel that is associated with a...
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7573881 |
System, device, and method for receiver access control in a multicast communication system
A system, device, and method for receiver access control in a multicast communication network uses a policy service to determine whether a subscriber device can be admitted to a multicast group....
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7564806 |
Aggregate multicast trees for multicast virtual private networks
Principles of the invention are described for providing multicast virtual private networks (MVPNs) across a public network that are capable of carrying high-bandwidth multicast traffic with...
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7558219 |
Multicast trees for virtual private local area network (LAN) service multicast
Principles of the invention are described for providing virtual private local area network service (VPLS) multicast instances across a public network by utilizing multicast trees. In particular,...
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7554996 |
Controlled distribution of inter-area routing information
A technique controls distribution of reachability information for a tail-end node of a traffic engineering (TE) label switched path (LSP) to a head-end node of the TE-LSP in a computer network. The...
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7551635 |
SONET method and system having network service access point addressing
A synchronous optical network (SONET) system having multi-hierarchal network service access point (NSAP) addressing includes electrically linked network elements (NEs) and first and second level...
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7551634 |
Communication network system
A communication network system includes: a plurality of lower hierarchy networks, each having a plurality of first relay apparatuses; and an intermediate hierarchy network having a plurality of...
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7551609 |
Data structure for storing and accessing multiple independent sets of forwarding information
Stored in the leaf nodes of a data structure that can be used for identifying the longest prefix matching an address are corresponding values from multiple forwarding information bases. A single...
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7551571 |
Technology for improving STP protocols in ethernet networks supporting VLANs
A method for utilizing a Spanning Tree Protocol (STP) in an Ethernet network wherein a number of VLANs are defined and a plurality of Ethernet switching nodes (A, B, C D E, F,G H) are...
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7545757 |
STP root guard
A method of managing a computer network switch is disclosed. The method has the steps of: setting a port of the switch to root guard protected status (RG status); selecting by a spanning tree...
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7543074 |
Systems for distributing content data over a computer network and method of arranging nodes for distribution of data over a computer network
The invention is a system for distributing content data over a computer network and a method of arranging receiver nodes in a computer network such that the capacity of the server is effectively...
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7542470 |
Method and apparatus for routing a packet within a plurality of nodes arranged in a line or a tree given a maximum stack depth
A method and apparatus are provided for routing a packet within a plurality of n nodes arranged in a line or tree (or a combination of the foregoing), given a maximum stack depth, s. A fixed stack...
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7542432 |
Resource matched topology database synchronization in communications networks having topology state routing protocols
A method for selecting a neighboring node to synchronize network topology database information with a network node from among a plurality of neighboring nodes coupled to the network node in a...
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7539176 |
System and method for providing link, node and PG policy based routing in PNNI based ATM networks
A system and method for providing link, node, and PG policy based routing in PNNI based ATM networks is disclosed. A computer implemented method signals and routes a call in the network. Upon...
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7535914 |
Communications network
A datagram network is operated by placing a group address in the source address field of the datagram. Nodes within the datagram network forward the datagram in dependence on the contents of the...
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7535911 |
System and method for determining the physical topology of a network having multiple subnets
A system for, and method of, determining a physical topology of a network having multiple subnets. In one embodiment, the system includes: (1) a skeleton path initializer that uses addressing...
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7535899 |
Packet classification
An apparatus and method includes grouping filters to form a tree according to a bitmask. The bitmask includes entries indicating whether a value is assigned to an element of a filter. The method...
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7522609 |
Propagation of minimum guaranteed scheduling rates among scheduling layers in a hierarchical schedule
Methods, apparatus, data structures, computer-readable media, and mechanisms may include or be used with a hierarchy of schedules with propagation of minimum guaranteed scheduling rates among...
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7512141 |
Domain configuration in an ethernet OAM network having multiple levels
A domain configuration system and method operable in an Ethernet OAM network having multiple levels of OAM domains. A port of a first end bridge of the network is configured as a first MEP node...
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7512080 |
Forwarding tree having multiple bit and intermediate bit pattern comparisons
Principles of the invention are directed to techniques for allowing a router forwarding packets within a computer network to perform two or more forwarding tree decisions per memory access. The...
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7505422 |
Preference programmable first-one detector and quadrature based random grant generator
A preference programmable first-one detector and quadrature based random grant generator in a crossbar switch is disclosed. The crossbar switch emulates a FIFO switching function in a single chip...
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7502881 |
Data packet routing mechanism utilizing the transaction ID tag field
A data packet routing mechanism including a plurality of clients for issuing read requests to a host device, the read requests each including a TAG field for identifying which of the plurality of...
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7502376 |
Layer-2 network with virtual private LAN service
A method to provide a loop-free telecommunication network comprising end-users interconnected through one or more Metropolitan Area Network and/or Wide Area Network providing Virtual Private Local...
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7496055 |
Layer 2 loop detection system
A layer 2 loop detection apparatus includes a unit recognizing a topology of an L2 network at normal time by collecting MIB information including information concerning ports of a plurality of L2...
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7492727 |
Space and time efficient XML graph labeling
There is provided a method for determining reachability between any two nodes within a graph. The inventive method utilizes a dual-labeling scheme. Initially, a spanning tree is defined for a group...
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7492716 |
Method for efficiently retrieving topology-specific data for point-to-point networks
Network topology codes are computed and used as keys to retrieve topology-specific information for isomorphic networks.
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7474656 |
Data transfer to nodes of a communication network using self-replicating code
A method and communication network for transferring data is described. For the method, responsive to executing first code in a first node in a communication network, the first node establishes a...
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7474632 |
Method for self-configuring routing devices in a network
A method for configuring routing devices in a network data processing system. A routing change is identified in the network data processing system. In response to the routing change being...
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7467199 |
Integrated management system utilizing e-mail for remotely monitoring/controlling over the internet
A network integrated management system transferring monitor/control information by e-mail using the Internet ( 40 ) between a monitor/control apparatus ( 50 ) having a network ( 14 ) to be...
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7466681 |
Method and apparatus for sensor network routing
Sensor network routing uses distance information of sensors relative to a collector node, optionally along with non-unique key information, to route broadcasts from addressless sensors to a...
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7463638 |
Up-tree topology trace for network route tracing
A network route tracing system traces a path through a network and identifiesnetwork components and communications links affected by the path. According to one embodiment of the present invention,...
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7460549 |
Resource management for ad hoc wireless networks with cluster organizations
An initiator node in a local cluster included in a wireless network receives an admission request to execute an application comprising a set of tasks. If the initiator node is unable to map the set...
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7457257 |
Apparatus, system, and method for reliable, fast, and scalable multicast message delivery in service overlay networks
A method to organize nodes into an overlay network and to disseminate multicast messages within this overlay both through an efficient tree embedded in the overlay and through gossips exchanged...
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7453813 |
Methods for constructing PNNI networks with optimized architecture
The specification describes techniques for evaluating important network performance parameters, for example, call set-up time, for private network-to-network (PNNI) interfaces. These performance...
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7450527 |
Method and apparatus for implementing multiple portals into an Rbridge network
Shortest-path spanning trees are created outward from each portal on a Rbridge network with nodes on the network being assigned to the spanning trees. For those nodes equidistant to two portals, an...
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