A first network device including a transceiver, a circuit and a controller. The transceiver receives a first packet broadcast from a second network device to multiple network devices via a channel. A bit in the first packet indicates a request for a condition of the channel. The network devices include the first network device. The circuit determines the condition of the channel based on the bit in the first packet. The controller, prior to the circuit determining the condition of the channel and in response to the bit in the first packet, transitions the circuit to an active state. The controller, subsequent to the circuit determining the condition of the channel, returns the circuit to an inactive state. The transceiver, subsequent to the circuit returning to the inactive state, transmits a second packet to the second network device. The second packet indicates the condition of the channel.