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SNMP
SNMP
SNMP
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SNMP

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About SNMP.

About SNMP.

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  • 1. How Simple Network Management Protocol Works ・What is SNMP ・Internet Network Management Architecture ・SNMP basic components ・Versions of SNMP
  • 2. What is SNMP(Simple Network Management Protocol) Simple Network Management Protocol (SNMP) is a component of the Internet Protocol Suite as defined by the Internet Engineerring Task Force(IETF). SNMP is used in network management systems to monitor network-attached devices for conditions that warrant administrative attention. It consists of a set of standards for network management, including an Application Layer protocol, a database schema, and a set of data objects.
  • 3. The internet network management architecture SNMP is part of the Internet network management architecture. This architecture is based on the interaction of many entities, as described in the following section. • Agents • Managed object • Management information base (MIB) • Syntax notation • Structure of Management Information (SMI) • Network management stations (NMSs) • Parties • Management protocol
  • 4. SNMP basic components An SNMP-managed network consists of three key components: 1.Managed devices A managed device is a network node that contains an SNMP agent and that resides on a managed network. 2.Agents An agent is a network-management software module that resides in a managed device. 3.Network-management stations (NMSs) A network management system (NMS) executes applications that monitor and control managed devices.
  • 5. Versions of SNMP SNMP has three versions. ・Version1 SNMP version 1 is the initial implementation of the SNMP protocol. SNMP version 1 operates over protocols such as User Datagram Protocol, Internet Protocol, OSI Connectionless Network Service, AppleTalk Datagram-Delivery Protocol, and Novell Internet Packet Exchange . ・Version2 SNMP version 2 revises version 1 and includes improvements in the areas of performance, security, confidentiality, and manager-to-manager communications. But, because new party-based security system in version 2 is more complex, SNMP version 2 was not widely accepted. ・Version3 SNMP version 3 provides three important services: authentication, privacy and access control. SNMP version 3 is defined as the current standard version of SNMP by the IETF. So, the IETF considers earlier versions as obsolete or historical.
  • 6. References ・Wikipedia http://en.wikipedia.org/wiki/Simple_Network_Manage ment_Protocol ・Internet Architecture http://www.soi.wide.ad.jp/class/20030002/slides/03/19. html ・Javvin http://www.javvin.com/protocolSNMP.html ・Adventnet http://www.adventnet.com/products/javaagent/java_sn mp_agent_ds.html

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