Abstract:
A system (800), device (820), and method (600, 700) for aggregating MAC users in a shared medium network improve MAC performance and minimize complexity of a headend scheduler by aggregating a number of MAC Users into an Aggregate MAC User. The Aggregate MAC User acts as a proxy for its Constituent MAC Users by contending for network resources on behalf of the Constituent MAC Users and allocating network resources to the Constituent MAC Users as needed.
Abstract:
A device and method (300) provide for management of resource allocation on selected links in a connection-oriented communication network such that existing connections may share the burden of freeing up resources for accommodating new connections. The rate of a connection is dynamically adjusted (310, 314), on a connection-by-connection basis, using information (320) on the status of each link broadcast throughout the network. Links are marked (306, 312, 316) based on control information in the link state, and the in-call rate adjustment is based on negotiable quality of service, QOS, parameters.
Abstract:
A mechanism (Fig. 8) and method (Fig. 9) control software overloads in a communication network system (Fig. 1) to preserve the throughput capacity of the system in a simple and efficient manner. System load is regulated by accepting, deferring or rejecting work that the system is requested to perform. The criteria used to accept, defer or reject work is based on the relevance of the request and availability of system resources.
Abstract:
The method of the present invention provides efficient aggregation of link metrics for a subnetwork (102, 202, 302) in a communication network (100, 200, 300) having a plurality of interconnected subnetworks (102, 202, 302) that includes nodes (A, B, C, D) and links. Link metric values are summarized on a full-mesh topology (202) and encoded by a spanning tree topology (1004). The method encodes the link metric information contained in full-mesh topology with minimum compromise in the capability to recover it.
Abstract:
A mechanism (Fig. 8) and method (Fig. 9) control software overloads in a communication network system (Fig. 1) to preserve the throughput capacity of the system in a simple and efficient manner. System load is regulated by accepting, deferring or rejecting work that the system is requested to perform. The criteria used to accept, defer or reject work is based on the relevance of the request and availability of system resources.
Abstract:
A method for deploying a trust bridge in an ad hoc wireless network can provide interoperability for multi-organizational authentication. The method includes processing at a delegate certification authority (DCA) node device authorizations received from of a plurality of certification authorities (CAs) of different organizations, where the authorizations authorize the DCA node device to serve as a DCA representing the CAs (step 1105). The DCA node device then processes context information received from the ad hoc wireless network (step 1110). Next, the DCA node device determines, based on the context information, that a second node device should be enabled as a new trust bridge (step 1115). The DCA node device then performs a trust bridge deployment to enable the second node device to serve as the new trust bridge (step 1120).
Abstract:
A system (100) and method (300) for mesh/ad hoc participation is provided. The method can include providing (310) an incentive to a user operating a device in an ad hoc network and determining (320) network resources associated with providing the incentive. The method can establish a credit system for devices within the ad hoc network, evaluate a supply and demand for the network resources, and allocate credits to the devices for forwarding packets in the ad hoc network. The method can determine a delivery capacity for the devices and negotiate an optimal packet route through the devices in the ad hoc network based on the supply and demand.
Abstract:
An apparatus (1410) and method (300) for aggregating ATM virtual channels (1420) into virtual paths in order to gain bandwidth efficiency in the ATM network (1470). Virtual channels (1420) are aggregated into virtual paths (1430) according to ATM Service Category and further by ATM Traffic Descriptors (1440) and QoS Parameters (1450). An efficient set of QoS requirements (1450) for the virtual path are determined by the QoS requirements of the constituent virtual channels (1460).
Abstract:
A method (300) and communication system (400, 500, 600, 1300, 1400) provide a remote procedure call from a client to a server via un unreliable communication channel using a plurality of retransmission timers. The method includes the client transmitting to the server a request (302) and waiting for a confirm message, and the client retransmitting the request after each of a predetermined sequence of time-out periods (308, 312) implemented by the plurality of retransmission timers until a confirm message (316) is received from the server.
Abstract:
The method and system implement a black-out timer (606) to schedule intermediate network topology updates in coordination with a predetermined periodic network topology update timer (604) to minimize redundant topology updates. Topology update scheduling in accordance with present invention provides a significant enhancement to the efficiency to topology updating (602).