Cisco Technology, Inc.

Paul Bernard Duffy

Pascal Thubert

Patrick Wetterwald

Patrick Grossetete

Shmuel Shaffer

Jonathan W Hui

Wei Hong

Ralph Droms

A management device for a low power wide area network can: generate and send, to each constrained wireless network device via a wired gateway, a link layer multicast listener command specifying a listening interval and causing each constrained wireless network device to change from a low-power optimized mode to a listening mode until reception of a multicast data packet within the listening interval; generate collision avoidance parameters including a minimum waiting interval, a maximum waiting interval relative to the listening interval, and a redundancy constant; and instruct the wired gateways to selectively transmit the multicast data packet based on the collision avoidance parameters, wherein each wired gateway responds by waiting a randomly-selected wait interval between the minimum and maximum waiting intervals, and selectively transmitting the multicast data packet only if a received number of the multicast data packet by the corresponding wired gateway is less than the redundancy constant.

Reliable link layer multicast in a low power wide area network

In one embodiment, a device in a network determines that one or more network nodes should use a stateful address configuration protocol to obtain network addresses. The device causes the one or more network nodes to use the stateful address configuration protocol, in response to determining that the one or more nodes should use the stateful address configuration protocol to obtain network addresses. The device determines that the one or more network nodes should use a stateless address configuration protocol to obtain network addresses. The device causes the one or more network nodes to use the stateless address configuration protocol, in response to determining that the one or more nodes should use the stateless address configuration protocol to obtain network address.

Optimizing global IPv6 address assignments

In one embodiment, an energy manager determines respective energy profiles of one or more local end-devices for which the energy manager is responsible. Through communication between a power grid controller and the energy manager, one or more aspects of power grid operations may be controlled based on the communicating and the respective energy profiles. For example, in one embodiment, upon receiving a global demand response (DR) request, the energy manager determines respective specific DR control for the one or more local end-devices based on the received DR request and the respective energy profiles, and transmits the respective specific DR control to the one or more local end-devices, accordingly. In another embodiment, power grid operations may be stabilized based on the respective energy profiles.

Adaptive control of power grid operations based on energy profiles

Growing community of inventors

Acton, MA, United States of America

Paul Bernard Duffy