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DSNM - 05 SNMP - I, PDU Types, Network Management, SNMPv2, SNMPv3, SNMPv1…

- - - - BER Endoding
  - - - Manager to Agent
      - To Retrieve the value/s of variable/s.
    - - Manager to Agent
      - Request a Response with variable binding for the lexicographically next variable in the MIB.
      - Entire MIB can be walked if OID 0 is given.
    - - Optimized version of GetNextRequest
      - Requests multiple iterations of GetNextRequest.
      - Introduced in SNMPv2
      - specific non-repeaters
        
        Treat as normal GetNext Requests
      - Max-repetitions
- - - - Checks
      - Actual Set
  - - - GetBulk Request
      - Inform Request
        
        Confirmed Trap
        
        Same Trap PDU
        
        Errors
        
        tooBig
    - - GET
        
        noSuchObject
        
        noSuchInstance
      - GETNEXT
        
        endOfMibView
- - - - A Traffic manager. Sends & Receaves masseges.
      - Passes messages to the appropriate end.
    - - Prepare message header for transmission
    - - Authenticate & Encrypt Messages
      - sub modules
        
        Community Based
        
        SNMPv1
        
        SNMPv2
        
        User Based
        
        SNMPv3
        
        CIA concepts
    - - Authentication