Other network elements are not required.
Energy-saving management is a basic feature of a switch and is not under license control.
All models of S2720, S5700, and S6700 series switches support Energy-saving management.
For details about software mappings, visit Hardware Query Tool and search for the desired product model.
During device sleeping configuration, if you run the speed { 10 | 100 } command on any awakening port to set the port rate to 10 or 100 Mbit/s or run the loopback internal command on any awakening port to configure the loopback detection mode, the device cannot enter the sleeping state. To enable the device to enter the sleeping state, you need to configure the awakening port on which the speed { 10 | 100 } or loopback internal command has been configured as a non-awakening port or delete the speed { 10 | 100 } or loopback internal command configuration from the awakening port.
When the interval between the sleeping start time and end time is less than 10 minutes, the device will not enter the sleeping state.