          RFC1212-MIB DEFINITIONS ::= BEGIN

          IMPORTS
              ObjectName
                  FROM RFC1155-SMI
              DisplayString
                  FROM RFC1158-MIB;

          OBJECT-TYPE MACRO ::=
          BEGIN
              TYPE NOTATION ::=
                                          -- must conform to
                                          -- RFC1155's ObjectSyntax
                                "SYNTAX" type(ObjectSyntax)
                                "ACCESS" Access
                                "STATUS" Status
                                DescrPart
                                ReferPart
                                IndexPart
                                DefValPart
              VALUE NOTATION ::= value (VALUE ObjectName)

              Access ::= "read-only"
                              | "read-write"
                              | "write-only"
                              | "not-accessible"
              Status ::= "mandatory"
                              | "optional"
                              | "obsolete"
                              | "deprecated"

              DescrPart ::=
                         "DESCRIPTION" value (description DisplayString)
                              | empty

              ReferPart ::=
                         "REFERENCE" value (reference DisplayString)
                              | empty

              IndexPart ::=
                         "INDEX" "{" IndexTypes "}"
                              | empty
              IndexTypes ::=
                         IndexType | IndexTypes "," IndexType
              IndexType ::=
                                  -- if indexobject, use the SYNTAX
                                  -- value of the correspondent
                                  -- OBJECT-TYPE invocation
                         value (indexobject ObjectName)
                                  -- otherwise use named SMI type
                                  -- must conform to IndexSyntax below
                              | type (indextype)

              DefValPart ::=
                         "DEFVAL" "{" value (defvalue ObjectSyntax) "}"
                              | empty

          END

          IndexSyntax ::=
              CHOICE {
                  number
                      INTEGER (0..MAX),
                  string
                      OCTET STRING,
                  object
                      OBJECT IDENTIFIER,
                  address
                      NetworkAddress,
                  ipAddress
                      IpAddress
              }

