The root object identifier from which experimental MIBs may be temporarily based. MIBs are typicaly based here if they fall in one of two categories: 1) are IETF work-in-process MIBs which have not been assigned a permanet object identifier by the IANA. 2) are RugedCom work-in-process which has not been assigne a permanent object identifier, typically because the MIB is not ready for deployment.