Telecom Switch Pattern

  • Release version: Yokohama
  • Updated January 30, 2025
  • 2 minutes to read

    • The ServiceNow® Telecom Discovery application uses the Telecom Switch discovery pattern to find SNMP-based Telecom switches in the network. Discovering some of these resources requires updating the Telecommunications Discovery Patterns (TSOM Patterns) from the ServiceNow® Store.

    Telecom Discovery uses the Telecommunications Discovery Patterns to run Horizontal Discovery. This Telecommunications Discovery Pattern uses a set of SNMP requests to find, classify, and discover network elements.

    Telecom Switch pattern is part of the Telecommunications Discovery Patterns application (sn_tsom_patterns), which is part of TSOM Visibility.

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    Prerequisites

    Impacted CMDB CIs and CI Relationships (Physical Layer)

    CIs CI Relationships
    IP Switch CI

    IP Switch Device is represented by the IP Switch CI.

    Table name: cmdb_ci_ip_switch

    IP Switch CI contain Slots or Network Interfaces.
    Slot CI

    Slots are represented by the Slot CI.

    Table name: cmdb_ci_container_slot

    Slot is contained by the IP Switch.

    Slot CI contains the Interface Card.
    Subslot CI

    Subslots are represented by the Subslot CI.

    Table name: cmdb_ci_container_subslot

    Subslot is contained by Interface Card CI.

    Subslot CI contains the Interface Card CI.
    Interface Card CI

    Different types of cards are represented by the Interface Card CI.

    Fan and Power Supply Units are also represented by the Card CI.

    Table name: cmdb_ci_interface_card

    Interface Cards are contained by Slots or Subslots.

    Interface Cards can contain Network Interface or Subslots.
    Network Interface CI

    Any type of Network Interface is represented by the Network Interface CI.

    Table name: cmdb_ci_ni_interface

    Network Interface is contained by Interface Card, IP Switch.

    Classifying xNFs for this Pattern

    To access a full list of OIDs that will be classified.

    Before you begin

    Role required: admin

    Classifier name: Standard Network Switch.

    Procedure

    1. Navigate to All > Discovery Definition > CI Classification > SNMP.
    2. From the list, select Standard Network Switch.
    3. Open the tab SNMP OID Classifications and see the list of OIDs.snmp oid classification.
      Note:

      For more information on how to add additional OIDs to the classifier, see Telecom Discovery using Telecommunications Discovery Patterns.

      MiB Tables Used on an xNF:
      • SystemMIB
      • EntityPhysicalMIB
      • IfMIB
      • IfXMIB
      • IpMIB