Hi, I couldn't find a restriction in RFC 2578, or a recommendation guideline in RFC 4181 that prohibits the use of underscores in integer enumerated values labels. smilint 0.4.3 complains and NET-SNMP 5.1.x (aka. libsmi) complained about the existence of underscores in an enumeration Is there any clarification in some place about underscores usage? Thanks for any suggestion Eduardo