Multi-interface devices with at least a high-power network interface and a
low-power network interface may form into power management clusters.
Power management clusters may be maintained over low-power networks
associated with the low-power network interfaces. One or some relative
few of the cluster participants may be designated lead devices.
Designated lead devices participate in high-power networks as well as a
low-power network of their power management cluster. Designated lead
devices may monitor associated high-power networks for messages addressed
to any participant in their power management cluster, and may notify a
participant of the incoming message. In response, the participant may
establish a high-power network connection to receive the message. In this
way, each participant in the power management cluster receives a service
quality benefit of a continuous high-power network connection, but only a
relative few participants suffer the associated power expenditure at any
given moment.