Abstract: A method and apparatus for providing resource discovery using multicast scope selection is disclosed. The method includes the discoverer sending a first request message having a first selected scope to a known multicast group, setting a timer after the first request message is sent, detecting whether a confirm message is received from an endpoint before the timer expires, terminating when a confirm message is received from an endpoint prior to the expiration of the timer, determining whether a scope increase is allowed when a confirm message is not received from an endpoint before the expiration of the timer, terminating when a scope increase is not allowed, increasing the scope to the second selected scope when a scope increase is allowed, resetting the timer and sending a second request message having the second selected scope when a confirm message is not received from an endpoint in response to the first request message, the second selected scope being greater than the first selected scope.

Abstract: A system and method of predicting a life time of a device and determining a life time left for the device, includes a temperature sensor, disposed proximate to the device, sensing temperatures of the device at a plurality of time intervals; a memory, coupled to the sensor, recording the sensed temperatures from the sensor; and a controller, coupled to the memory, determining life time points of the device corresponding to the temperatures, calculating accumulated life time points of the device on account for the time intervals to predict the life time of the device. In operation, given a measured temperature, a life time left for the device is determined. Accordingly, the device can be replaced by a new device before it fails, thereby improving reliability of a system, such as a communication system at BTS (Base Transceiver Station).

Abstract: A method, a system, and an article of manufacture for measuring a relative skew between clocks in a packet based communication network. The method utilizes the timestamps available in packets sent from a sender to a receiver, as well as the times at which the receiver receives such packets. Such timestamps can be incorporated in packets, or in a separate protocol.

Abstract: An enhanced acknowledgment pacing device and method for TCP connections is disclosed. The invention includes a link layer entity for receiving data packets from a source and forwarding the data packets to a forward data link, the link layer entity storing the received data packets in a data packet buffer until the data packets depart the link layer entity and are forwarded to the forward data link and an acknowledgment pacing device, coupled to the link layer entity, for pacing acknowledgment packets to be sent to the source in response to receiving the data packets from the source.