This object specifies the domain name of the Cisco EnergyWise
entity. This object specifies a null string if no domain name
is configured.
If write access is implemented for an instance of
cewDomainName, and a value is written into the instance, the
agent must retain the supplied value in the cewDomainName
instance associated with the same physical entity for as long
as that entity remains instantiated. This includes
instantiations across all re-initializations/reboots of the
network management system, including those which result in a
change of the physical entity's entPhysicalIndex value.