3757 results about "Routing control plane" patented technology

In one embodiment, a network system of the present invention includes at least a first router and a second router coupled to an upstream link to permit data flow from the first router to the second router across the upstream link. The second router includes a control plane and a data plane having an input port coupled to the upstream link and an output port connectable to a downstream link. The control plane includes a virtual pool having a capacity corresponding to a resource capacity of the first router and an admission control function. In response to a request to reserve resources for a flow through the data plane from the input port to the output port, the admission control function performs admission control for the upstream link by reference to resource availability within the virtual pool. In one embodiment, the request is a request to reserve resources for an Integrated Services flow, and the capacity of the virtual pool corresponds to a resource capacity of a Integrated Services service class supported by the first router.

A process control method and system including partitioning transmit decisions and certain measurements into one logical entity (Data Plane) and partitioning algorithm computation to update transmit probabilities into a second logical entity (Control Plane), the two entities periodically communicating fresh measurements from Data Plane to Control Plane and adjusted transmit probabilities from Control Plane to Data Plane. The transmit probability may be used in transmit / discard decisions of packets or instructions exercised at every arrival of a packet or instruction. In an alternative embodiment, the transmit probability may be used in transmit / delay decisions of awaiting instructions or packets exercised at every service event.

The present invention incorporates methodologies developed in the Internet Engineering Task Force (IETF) Internet Protocol Security (IPSEC) Working Group into asynchronous transfer mode (ATM) and frame relay (FR) signaling to provide message integrity and origin authentication. In one implementation the invention provides a virtual private network (VPN) infrastructure with call control message integrity, origin verification, and transit network filtering. The invention utilizes a set of control plane messages based on the IPSEC authentication header (AH) methodology to provide these security mechanisms for ATM and FR network switching equipment and signaling protocols. This abstract itself is not intended to limit the scope of this patent. The scope of the present invention is pointed out in the appending claims.

Method and apparatus for processing location service messages in a satellite position location system is described. In one example, a mobile receiver includes a satellite signal receiver, wireless circuitry, and at least one module. The satellite signal receiver is configured to receive satellite positioning system signals, such as Global Positioning System (GPS) signals. The wireless circuitry is configured to communicate location service messages between the mobile receiver and a server through a cellular communication network. The location service messages may include any type of data related to A-GPS operation, such as assistance data, position data, request and response data, and the like. The at least one module is configured to provide a user-plane interface and a control-plane interface between the satellite signal receiver and the wireless transceiver. The at leat one module is capable of processing location service messages communicated using either the control-plane signaling or user-plane signaling mechanisms.