vRtrLdpIfRowStatus is used to control the creation and deletion
of rows in the vRtrLdpIfTable.
A row can be created by setting vRtrLdpIfRowStatus to 'createAndGo'.
The agent should assign the default attribute values and change
the row status to 'active'.
A row entry can be destroyed by setting vRtrLdpIfRowStatus to
'destroy'. An attempt to destroy a row will fail if
vRtrLdpIfAdminState is not set to 'outOfService'.