SMI:data definition language Purpose:syntax,semantics of Basic Data①ypes management data well- defined,unambiguous INTEGER Integer32 base data types: Unsigned32 o straightforward,boring OCTET STRING OBJECT-TYPE OBJECT IDENTIFIED o data type,status, IPaddress semantics of managed Counter32 object Counter64 MODU儿E-IDENTITY Guage32 Time Ticks o groups related ob jects Opaque into MIB module Network Management 9-9 Network Management 9-9 SMI: data definition language Purpose: syntax, semantics of management data well￾defined, unambiguous  base data types:  straightforward, boring  OBJECT-TYPE  data type, status, semantics of managed object  MODULE-IDENTITY  groups related objects into MIB module Basic Data Types INTEGER Integer32 Unsigned32 OCTET STRING OBJECT IDENTIFIED IPaddress Counter32 Counter64 Guage32 Time Ticks Opaque