Energy conservation is one of the major concerns of consumers around the world. Not only that this will mean lesser worries when it comes to paying electrical bills, but this also imposes safety measures especially in any given networking system as it prevents the cause of major disasters such as system errors, server maintenance or worst, fire emergency situations. Because of this, a lot of companies, including Microsoft, have incorporated power management techniques to network devices (PC cards et. al.) and equipment.
One very good example is the capability of computers to be put on sleep or suspend mode or network devices to be powered off in certain times when the network is not in use. The system can then be triggered on again due to user interference and other updates made to the network.
Though certain power management techniques may drive positive results for energy conservation, however, there are also negative effects to the system. Say for example a computer is on sleep or suspend mode and was not able to determine a request coming in from another unit or source, then there is interference in communication.
Since computer networking systems are susceptible to upgrades, there are some that might affect network power management capabilities. These can be disabled temporarily or even permanently depending on how critical the upgrades are. There are also times wherein power management is bypassed when the computer is idle but an application is launched, causing the “auto-save” feature to be triggered. This definitely defeats the purpose of power management as the system was made awake when certain times that it should be on sleep or suspend mode. For power management to work significantly in your network, then do not leave any software application open.