With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
cewProtocol
Cisco EnergyWise Protocol
1.3.6.1.4.1.9.9.683.1.19
This object specifies the protocol used for communication between Cisco EnergyWise entities.
Back to CISCO-ENERGYWISE-MIB MIB page.
IPHost Network monitor allows you to monitor cewProtocol on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.