Simple Network Management Protocol

Simple Network Management Protocol

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  WELLCOME TO OUR PRESENTATION
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  Supervised By Samrat AliAbu Kaysar Lecturer of Dept. CSE City University Group Members Name ID Sheher Jahan Rashni 163432012 Anupom Shill 163432030 Sadia afrin Misty 163432020 Md Ikram Ullah 163432017
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  Our Presentation Topic SimpleNetwork Management Protocol
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  CONTENTS • Network Management •SNMP • SNMP Protocol • SNMP manage • SNMP Functionality • SNMP Components • SNMP Agent & SNMP Proxy
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  What is SNMP? SNMP is a tool (protocol) that allows for remote and local management of items on the network including servers, workstations, routers, switches and other managed devices. 1. Designed to be Simple very few commands. 2. It concerns with Network Management. 3. It’s a Protocol-defined by IETF (Internet Engineering Task Force).
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  The Three Partsof SNMP SNMP network management is based on three parts:  SNMP Protocol  Structure of Management Information (SMI)  Management Information Base (MIB)
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  SNMP Protocol : Definesformat of messages exchanged by management systems and agents. Specifies the Get, GetNext, Set, and Trap operations. Structure of Management Information (SMI): Rules specifying the format used to define objects managed on the network that the SNMP protocol accesses. Management Information Base (MIB) : A map of the hierarchical order of all managed objects and how they are accessed.
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  What does SNMPmanage?  The all SNMP compatible devices. servers workstations routers switches printers …many more.
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  SNMP Functionality?  FaultManagement.  Configuration Management.  Accounting Management.  Performance Monitoring and Management.  Security Management.
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  SNMP Components  SNMPManager.  SNMP Agent.  MIB-Management Information Base.
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  This diagram
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  SNMP Manager  Capableof querying any managed device -via polling.  Capable enforcing management decision in Network.  Normally runs on very few system compared to SNMP agents.
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  SNMP Agent  Collectsinformation from network device, on which it resides and stores in MIB.  Replies to manager with proper information when asked for.  Can initiate communication with SNMP manager using traps.
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  SNMP Proxy  AProxy Agent is an SNMP agent that maintains information of one or more non-SNMP devices.  Proxy Agent does the conversion of control messages.
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  This diagram
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  Management Information Base MIB is collection of network information. Contains the real values of managed objects in the agent in the form of variables, tables of variables.  Access-through network management protocol.  MO in MIB-represent characteristics of a managed device.  Changes is done in agent MIB.  MIB definition is available in manager.
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  Advantages of usingSNMP  Standard  universally supported  extendible  portable  allows distributed management access  Light weight protocol
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  Disadvantages of usingSNMP  One such problem is the inefficiency of SNMP for retrieving bulk MIB data.  SNMP shows poor performance when retrieving several thousands of MIB variables in a single logical transaction.  Reasons: 1. CPU overhead 2.Bandwidth inefficiency due to OID naming overhead 3.High latency caused by a large number of request/response interactions.