Template:FAQ:MIBs 06
From Net-SNMP Wiki
This means that the library has been able to find the MIB module,
and parse the individual objects defined in it, but is having problems
linking them together into a consistent tree. In particular, it
can't find an object corresponding to the name within the braces
(i.e. the 'xxx' in '{xxx 99}').
This is probably due either to a typo in this name (remember that
names are case sensitive, so a reference to 'xxx' will not match
a definition of 'Xxx'), or else the name is defined in another MIB
file, and this dependency is missing from the IMPORT clause of this
MIB file.
