|maipuExperiment provides a root object identifier from which
experimental mibs may be temporarily based. MIBs are typicially
based here if they fall in one of two categories:
1) IETF work-in-process mibs which have not been assigned a
permanent object identifier by the IANA.
2) Maipu work-in-process which has not been assigned a
permanent object identifier by the maipu assigned number
authority, typicially because the mib is not ready for
NOTE: support for mibs in the maipuExperiment subtree will be
erased when a permanent object identifier assignment is made.