Network Management standards OSI CMIP SNMP:Simple Network ▣Common Management Management Protocol Information Protocol ▣Internet roots(SGP) □designed198o's:the started simple unifying net deployed,adopted rapidly management standard growth:size,complexity ▣too slowly ▣currently:SNMP V3 standardized ▣de facto network management standard Network Management 9-6
Network Management 9-6 Network Management standards OSI CMIP Common Management Information Protocol designed 1980’s: the unifying net management standard too slowly standardized SNMP: Simple Network Management Protocol Internet roots (SGMP) started simple deployed, adopted rapidly growth: size, complexity currently: SNMP V3 de facto network management standard
Chapter 9 outline What is network management? Internet-standard management framework o Structure of Management Information:SMI o Management Information Base:MIB o SNMP Protocol Operations and Transport Mappings o Security and Administration ▣ASN.1 Network Management 9-7
Network Management 9-7 Chapter 9 outline What is network management? Internet-standard management framework Structure of Management Information: SMI Management Information Base: MIB SNMP Protocol Operations and Transport Mappings Security and Administration ASN.1
SNMP overview:4 key parts Management information base (MIB): o distributed information store of network management data Structure of Management Information (SMI): o data definition language for MIB objects ▣SNMP protocol o convey manager<->managed object info,commands security,administration capabilities omajor addition in SNMPv3 Network Management 9-8
Network Management 9-8 SNMP overview: 4 key parts Management information base (MIB): distributed information store of network management data Structure of Management Information (SMI): data definition language for MIB objects SNMP protocol convey manager<->managed object info, commands security, administration capabilities major addition in SNMPv3
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 welldefined, 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