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This section describes the SNMP collection agents. These agents are available in real-time workflow configurations. The SNMP Collection profile is used to import the set of MIB files that will be used to build the target UDRs. To poll the network, the SNMP Request agent periodically sends queries to the devices (network elements) on the network. These queries determine the behavior of the devices, for example operational status, or the data in the MIB variables of the devices. The UDR types and fields to poll can either be configured directly in the SNMP Request agent, or in a separate SNMP OID profile, that can be referenced by several SNMP Request agents.

The SNMP Request agent produces a user configured UDR as a result of SNMP polling. For the user convenience the target UDR follows the hierarchical structure of MIB Object definitions. The SNMP Trap agent is used to receive SNMP notifications (traps and informs).  The SNMP Trap agent produces and maps SNMP notifications to UDRs, so they can be further processed by the  Platform.

Prerequisites

Relevant specifications for these agents:

  • SNMPv1 RFC

    • RFC 1157. Simple Network Management Protocol
    • SMIv1 RFCs also apply to all SNMPv1 entities. 
    • MIB-II RFCs also apply to all SNMPv1 agent entities.

  • SNMPv2 RFCs

    • RFC 1901. Introduction to Community-based SNMPv2
    • RFC 1908. Coexistence between Version 1 and Version 2 of the Internet-standard Network Management Framework
    • RFC 3416. Version 2 of SNMP Protocol Operations
    • RFC 3417. Transport Mappings

  • SNMPv3 RFCs

    • RFC 3410. Introduction and Applicability Statements for Internet Standard Management Framework
    • RFC 3411. An Architecture for Describing SNMP Management Frameworks
    • RFC 3412. Message Processing and Dispatching
    • RFC 3413. SNMP Applications
    • RFC 3414. User-based Security Model
    • RFC 3415. View-based Access Control Model
    • RFC 3416. Version 2 of SNMP Protocol Operations
    • RFC 3417. Transport Mappings
    • RFC 3584. Coexistence between Version 1, Version 2, and Version 3 of the Internet-standard Network Management Framework
    • RFC 3826. The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-based Security Model
    • RFC 5343. Simple Network Management Protocol (SNMP) Context EngineID Discovery

Additional SNMPv3 RFCs including the Datagram Transport Layer Security RFCs (also known as DTLS or (D)TLS) are:

    • RFC 5590. Transport Subsystem for the Simple Network Management Protocol (SNMP)
    • RFC 5591. Transport Security Model for the Simple Network Management Protocol (SNMP)
    • RFC 5953. Transport Layer Security (TLS) Transport Model for the Simple Network Management Protocol (SNMP)

  • SMIv1 RFCs

    • RFC 1155. Structure and Identification of Management Information for TCP/IP-based internets
    • RFC 1212. Concise MIB Definitions
    • RFC 1215. Convention for Defining Traps for use with the SNMP

  • SMIv2 RFCs

    • RFC 2578. Structure of Management Information Version 2 (SMIv2)
    • RFC 2579. Textual Conventions for SMIv2
    • RFC 2580. Conformance Statements for SMIv2

  • MIB-II RFCs

    • RFC 1213. Management Information Base for Network Management of TCP/IP-based internets: MIB-II
    • RFC 2863. The Interfaces Group MIB (IF)
    • RFC 3418. Management Information Base (MIB) for the Simple Network Management Protocol (SNMP)
    • RFC 4001. Textual Conventions for Internet Network Addresses
    • RFC 4022. Textual Conventions for Internet Network Addresses (TCP)
    • RFC 4113. Management Information Base for the User Datagram Protocol (UDP)
    • RFC 4292. IP Forwarding Table MIB (IP-FORWARD)
    • RFC 4293. Management Information Base for the Internet Protocol (IP)
    • RFC 4898. TCP Extended Statistics MIB (TCP-ESTATS)
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