This object specifies the identifier of VLAN for which
the Auto-Ethernet-CFM operation will be used.
It is an unique identifier for a service instance within
a Maintenance Domain specified by ipslaEthernetGrpCtrlDomainName.
The Auto-Ethernet-CFM will find all the MEPs participating
in this VLAN and create IP SLA operations for each MEP
corresponding to value specified in ipslaEthernetGrpCtrlRttType.