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7623517 Multicast packet forwarding equipment  
In a multicast network which permits client nodes to join only a source-specific multicast group, when a multicast group join request is received from a client node provided with an any-source...
7623474 Techniques for distributing information using multicast subsets  
Techniques for sending data in a packet-switched communications network include determining multiple subsets of adjacent network nodes of the network. The adjacent network nodes communicate without...
7620045 Communication system, multicast-capable router, transmitter terminal, receiver terminal, and communication method  
A communication system ( 1 ) is provided with URs ( 20 a to 20 h ) and a source terminal ( 10 ). The URs ( 20 a to 20 h ) include: entry holders ( 21 a to 21 h ) for holding forwarding...
7616645 Frame forwarding apparatus for converting VLAN identifiers  
A frame forwarding apparatus is provided with a frame forwarding processing unit for converting a VLAN ID of a frame received from one subscriber terminal into a group VLAN ID and converting a...
7616635 Address mapping for data packet routing  
A method and apparatus for address mapping for data packet routing. An embodiment of a network controller includes an address filter, where the address filter is to receive a data packet that has a...
7616634 Gateway device connecting multicast-supported network to multicast-unsupported L2 network  
Disclosed is a network system capable of transferring data at a high speed between multicast-supported networks via a L2 network. The network system includes a multicast-unsupported L2 network, two...
7613772 Method for context based discovery and filtering of portable collaborative networks  
A peer-to-peer collaborative network system is described. The peer-to-peer collaborative network system allows for the existence of a number of collaborative networks. Within the collaborative...
7613135 System and method for routing packet traffic  
A system and method for routing packet traffic is disclosed. A system that incorporates teachings of the present disclosure may include, for example, a router having a routing element that routes...
7610607 Chaincast method and system for broadcasting information to multiple systems within the internet  
A method and system for performing chaincast communication to multiple communication systems within a system of coupled electronic devices. In one implementation the electronic devices can be...
7610387 Method and apparatus for providing sticky bindings using version vectors  
In a network having a plurality of routers and also an application running at a plurality of replicas, a system for maintaining a client session between a client and a particular replica includes...
7609966 Method and system for time-sharing transmission frequencies in an optical network  
An optical communication system includes an optical ring that couples a hub node and a plurality of local nodes. The hub node is capable of receiving traffic over the optical ring from the...
7609711 Communicating program rejection information in broadcast-multicast mobile communication system  
The present invention relates to communicating program rejection information in a broadcast-multicast mobile communication system. Preferably, present invention comprises receiving information...
7609707 Communication traffic management systems and methods  
Communication traffic management systems and methods are disclosed. One or more traffic managers may be provided for managing communication traffic to be sent toward respective groups of one or...
7609694 Multicast communications system with mechanism for updating multicast trees  
A multicast communications system that updates multicast trees in a reliable way to prevent transmitted packets from being dropped or reversed before they reach their destinations. When a...
7609693 Multicast packet queuing  
A traffic forwarding system that uses a multicast start-of-packet (SOP) pointer to enqueue a multicast packet in packet queues. The system receives cells, assigns pointers to the cells, and stores...
7609685 IP telephony apparatus providing simultaneous SIP communication for multiple IP phones and method for the same  
An IP telephony apparatus provides simultaneous SIP communication for multiple IP phones and a method is proposed for the same. The IP telephony apparatus comprises a network connection port...
7606255 Selectively receiving broadcast data according to one of multiple data configurations  
A client device selectively receives broadcast data according to any one of multiple data configurations. A broadcast data server enables broadcast of multiple data configurations by maintaining...
7606228 Home gateway system for providing optical communication packet data interface function and home broadcast service providing method using the same  
There are provided a home gateway system providing an optical communication packet data interface function and a home broadcast service providing method using the same. The home gateway system is...
7606227 Method, apparatus and system for distributing multicast data  
Packets of mobile communication protocol which a mobile terminal sends and receives are monitored and when it is detected that a mobile terminal to which a multicast data packet is transferred...
7606226 Multimedia service providing method and radio mobile communication system  
A multimedia broadcast/multicast service (MBMS) in a universal mobile telecommunications system (UMTS) includes a UTRAN that provides an MBMS service. The MBMS service-related information is...
7606206 Apparatus and method for reception of neighboring cell service  
A method for a mobile terminal to receive a service in mobile communications comprises the steps of detecting that the service is unavailable from a serving cell that serves the mobile terminal,...
7606186 Multicast in point-to-point packet-switched oriented networks  
The invention provides a solution for performing multicast within a telecommunication network. The basic idea is to introduce multicast transmission for parts of a network that is basically...
7606177 Value-added features for the spanning tree protocol  
A method and apparatus facilitates and enhances the operation of the spanning tree protocol in bridged computer networks. An intermediate network device in accordance with the present invention...
7606169 System and method for collecting routing information in a mesh network  
A method includes receiving a request to identify any communication paths visible to a first router in a mesh network and broadcasting the request. The method also includes identifying one or more...
7606153 Storage system and information processing system  
Prior to alteration of the communication route connecting the enterprise servers 5 1 to 5 3 , ports a, b and c of the enterprise server 5 1 are each connected with port 1 of the storage...
7602702 Fast reroute of traffic associated with a point to multi-point network tunnel  
Techniques are described for fast reroute of traffic associated with a point to multi-point (P2MP) tunnel. A system may, for example, include a source network device and a plurality of destination...
7599368 Communication system  
A communication system includes: a probe transmission server which transmits packets of a probe multicast at certain intervals on a same path as that of a main multicast; an aggregation server...
7599367 Constraining flooding of multicast traffic in Layer2 networks  
A mechanism for a network device to constrain multicast flooding of out-of-profile multicast frames is provided by defining a multicast flood domain that includes a subset of ports that are members...
7596138 Method of sending a multipoint stream in a local area network and connection device implementing the method  
Within the framework of a wireless local area network, the sending of the multipoint transmission streams is not made reliable by an acknowledgment of receipt mechanism. This reliability may be...
7596107 System and method for enabling multicast group services in a network environment  
A method for enabling a service in a network environment is provided that includes establishing a communication link with an end user and evaluating signaling information associated with the...
7593638 Secure upstream transmission in passive optical networks  
A method and system for ensuring confidentiality of signal transmission in a point-to-multi point data transmission network like Ether net passive optical network, including at least one hub, at...
7593402 Method of multicast source filtering  
A method for filtering multicast sources, so that when the multicast routing protocol is based on the Source-Specific Multicast (SSM) model, resource consumption of inquiry routers can be reduced...
7593401 Query load balancing for internet group management protocol (IGMP) general membership queries (GMQs)  
A method and system for querying a plurality of IGMP hosts supported by an IGMP router wherein the IGMP router logically subdivides the plurality of IGMP hosts into groups of hosts. Each group of...
7593353 Methods and apparatus for content delivery via application level multicast with minimum communication delay  
A method for constructing an overlay multicast tree to deliver data from a source to an identified group of nodes is provided in which a plurality of nodes are identified and mapped into...
7593333 Efficient one-to-many content distribution in a peer-to-peer computer network  
A content distribution method and system for distributing content over a peer-to-peer network such that the full potential throughput of the network is achieved. The content distribution method...
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...
7590756 Method and system for transferring data in a communications network using redundant communication paths  
A communication node of the present invention automatically transmits original and duplicate packets over different paths in a communications network to improve delivery reliability of the packet...
7590749 Method and apparatus for multicast management of user interface in a network access device  
The present invention discloses a method and apparatus for multicast management of user interface in a network access device, which comprises setting a user multicast information table for the user...
7590738 Method and system for processing concurrent events in a provisional network  
A method and system for processing concurrent events in a provisional network that comprises a plurality of dynamically allocatable nodes. Specifically, the method includes receiving notification...
7590115 Exchange of control information 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,...
7590114 Efficient IP multicast bridging in ethernet switches  
The invention features a method, apparatus, and computer program. The apparatus comprises a plurality of ports each adapted to receive Ethernet packets; and a data-link layer switch controller,...
7586913 Mobile IP packet communication system  
When receiving a packet sent thereto from a mobile terminal that is a sending source, a subscriber packet exchange apparatus encapsulates the packet with a multicast address without acquiring...
7586909 Striping algorithm for switching fabric  
A striping algorithm selects a route on which to transmit each next data segment, in dependence upon relative channel loading so far, taking account of multicast. Input modules can keep a channel...
7586897 Method for controlling routing operations in a network, related network and computer program product thereof  
A communication network with controlled routing operations, including a set of nodes, wherein topological information on the network is broadcast to all the nodes in the set. The network is...
7586842 Failover of multicast traffic flows using NIC teaming  
A method of operating a network computer system provides redundant Internet Protocol (IP) Multicast traffic flow on a group of physical ports and comprises virtualizing the group of physical ports...
7583669 Dynamic multicast group management and service wavelength allocation method for communication-broadcasting convergence service in WDM-PON  
The present provides a method of dynamically managing multicast groups and allocating multicast service wavelengths for the highest channel efficiency. According to the present invention, the share...
7583665 Method and apparatus for forwarding packets  
An internetworking system operating over an ATM backbone. The physical internetworking devices within the system are shared to provide the internetworking functions while servicing two or more...
7580368 Packet distribution control method  
A packet distribution control method in the case of performing multicast communication in network environment where both networks that support IP multicast and that do not support IP multicast...
7577754 System and method for controlling access to content carried in a caching architecture  
A set of access control labels is assigned to each of a number of users of a caching infrastructure in a network. The labels are used in specifying access control lists for content of the users....
7577753 System and method for processing packets in a multi-processor environment  
A method for processing packets in a multi-processor environment, that includes receiving a set-up request packet for a communication session and directing the set-up request packet to a selected...