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Simple Network Management Protocol and Management Information Base

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  • 1. Simple Network Management Protocol and Management Information Base righthand 2012-12-05 1
  • 2. Outline • Simple Network Management Protocol • Management Information Base 2
  • 3. SNMP (I) • Simple Network Management Protocol is an Internet Standard Protocol for managing devices on IP networks. 3
  • 4. SNMP (II) • Version: SNMPv1 → SNMPv2 → SNMPv3 • Protocol Data Units (PDUs) GetRequest, GetNextRequest, GetBulkRequest SetRequest Port 161 Response NMS Agent Port 162 Trap InformRequest 4
  • 5. SNMP (III) • Packet format IP UDP SNMP Version Community PDU-Type Request ID Error Status Error Index Variable Bindings … … Object Identifier … … Value 5
  • 6. MIB (I) • Management Information Base is a virtual database used for managing the entities in the network. – The database is hierarchical and each entry is addressed through an Object Identifier. – Objects in the MIB are defined using an adapted subset of Abstract Syntax Notation One (ASN.1). 6
  • 7. MIB (II) • Structure of Management Information(SMI) 7
  • 8. SNMP and MIB • SNMP and MIB can manage network device – SNMP is a management protocol – MIB is a management object set 8