This object specifies which attributes in the dynamic template
have been configured to valid values.
Each bit in this bit string corresponds to a column in this
table. If the bit is '0', then the value of the corresponding
column is not valid. If the bit is '1', then the value of the
corresponding column has been configured to a valid value.
The following list specifies the mappings between bits and the
columns:
bridgeDomain => cdtEthernetBridgeDomain
pppoeEnable => cdtEthernetPppoeEnable
ipv4PointToPoint => cdtEthernetIpv4PointToPoint
macAddr => cdtEthernetMacAddr