It is deployable in networks where the majority of equipment uses legacy interfaces and must also seamlessly support the very wide range of applications that already run on these networks.
where the majority of equipment uses legacy interfaces
Ethernet interfaces complying with the IEEE 802.3az standard might not save energy when connecting with older devices as long as the existing functions are fully supported. This allows incremental upgrades for networks to increasingly benefit from EEE as the proportion of EEE equipment increases.