The entLogicalTable.h header file contains the typedef for the entLogicalEntry_tstructure. This structure is representative of the entLogicalTable columns that are defined in RFC 2737. The entLogicalEntry_t is defined as follows:
typedef struct entLogicalEntry_s { int_l entLogicalIndex; char *entLogicalDescr; oid *entLogicalType; int_l entLogicalTypeSize; char *entLogicalCommunity; char *entLogicalTAddress; oid *entLogicalTDomain; int_l entLogicalTDomainSize; char *entLogicalContextEngineId; char *entLogicalContextName; struct entLogicalEntry_s* pNextEntry; } entLogicalEntry_t;