Telecom discrepancy identification and reconciliation

  • Release version: Australia
  • Updated March 12, 2026
  • 2 minutes to read
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    Summary of Telecom discrepancy identification and reconciliation

    The Telecom Discrepancy Identification & Reconciliation functionality is enabled by the TSOM Visibility plugin (sntsomcore) and supports maintaining the accuracy of telecom-related Configuration Items (CIs) in the CMDB. It provides auditing capabilities that identify inconsistencies in telecom data discovered by Nokia Altiplano or NSP, focusing on relationships and logical connections within telecom assets.

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    Key Features

    • System Properties: These configurable properties control the behavior of the Telecom Discrepancy Identification & Reconciliation audit logs and specify which CI tables and relationship types are included in the audits. For example, you can adjust logging levels, define thresholds for discovery date differences, and specify equipment, interface, slot, and subslot tables that the audit considers.
    • Telecom Discrepancy Audit: Examines relationships in the cmdbrelci table, validating parent and child CIs based on recent discovery dates, CI models, and their relationships (with TNI Core installed). It uses a filter targeting equipment CIs discovered through TSOM sources.
    • Telecom Logical Connections Discrepancy Audit: Checks logical connections recorded in the cmdbcinilogicalpath table, ensuring endpoints are populated and uniquely connected.
    • Telecom Network Topology Discrepancy Audit: Validates network topology CIs in the cmdbcinetworktopology table, confirming proper "Contains:Contained By" and "Members:Member Of" relationships with equipment and logical connections.

    Practical Use for ServiceNow Customers

    By activating and running the Telecom Discrepancy Identification & Reconciliation audits, customers can ensure telecom-related CMDB data integrity, identify mismatches or missing relationships, and maintain accurate network topology and logical connection records. Adjusting system properties allows tailoring the audit scope and sensitivity to meet specific operational requirements. This helps reduce errors in telecom asset management and supports better decision-making based on reliable CMDB data.

    The system properties are part of the TSOM Visibility plugin (sn_tsom_core) and control the Telecom Discrepancy Identification & Reconciliation log (TSOM CMDB Audit). The TSOM Visibility plugin serves as an enabler for the TSOM Visibility applications, containing logic that is shared across the Telecom Discovery and Telecom Discrepancy Identification & Reconciliation solution.

    Table 1. Telecom Discrepancy Identification & Reconciliation System Properties (Impacts CMDB Audit)
    Property Name Recommended / Default Value Description
    sn_tsom_core.audit.log.level Telecom Discrepancy Audits' Logging. debug,info,warn

    Default value: info
    sn_tsom_core.audit.relationship_types Displayed Names of Relationship Types that will be handled by Telecom Discrepancy Audit. Comma separated list of relationship types names

    Default value: Contains::Contained by
    sn_tsom_core.audit.discovered_date.diff.threshold.in.days Most recent discovered date threshold in days. Used for Telecom Discrepancy Audit. String

    Default value: 2.5
    sn_tsom_core.audit.suppress_CI_Model_missing_discrepancy_task_creation Suppress creation of CI Model missing discrepancy task for the tables.Used for Telecom Discrepancy Audit. cmdb_ci_ni_telco_equipment, cmdb_ci_ip_switch, cmdb_ci_ip_router, cmdb_ci_container_slot,cmdb_ci_container_subslot,cmdb_ci_interface_card,cmdb_ci_ni_interface
    sn_tsom_core.audit.equipment_tables Equipment tables that will be handled by Telecom Discrepancy Audit. Comma separated list of equipment tables names

    Default value: cmdb_ci_netgear
    sn_tsom_core.audit.interface_card_tables Interface Cards tables that will be handled by Telecom Discrepancy Audit. Comma separated list of card tables names.

    Default value: cmdb_ci_interface_card
    sn_tsom_core.audit.interface_tables Network Interface tables that will be handled by Telecom Discrepancy Audit. Comma separated list of interface tables names

    Default value: cmdb_ci_ni_interface
    sn_tsom_core.audit.slot_tables Slot tables names that will be handled by Telecom Discrepancy Audit. Comma separated list of slot tables names

    Default value: cmdb_ci_container_slot
    sn_tsom_core.audit.subslot_tables Subslot tables names that will be handled by Telecom Discrepancy Audit. Comma separated list of subslot tables names

    Default value is cmdb_ci_container_subslot
    Table 2. Telecom Discrepancy Identification & Reconciliation Audits
    Audit Name Description
    Telecom Discrepancy Audit Audits records in the cmdb_rel_ci table. For each relationship record discovered by Nokia Altiplano or NSP, it validates the parent and child CIs based on: - Most recent discovery date - CI model - CI model relationship (if TNI Core is installed).
    Note:
    All discrepancy audits use a filtering mechanism that applies to equipment CIs. By default, the filter condition is: discovery_source CONTAINS TSOM.
    Telecom Logical Connections Discrepancy Audit Audits records in the cmdb_ci_ni_logical_path table. For each logical connection discovered by Nokia Altiplano or NSP, it checks: - Empty endpoint (Port A or Port Z) - Each endpoint must be connected to only one unique logical connection.
    Telecom Network Topology Discrepancy Audit Audits records in the cmdb_ci_network_topology table. For each network topology CI discovered by Nokia Altiplano or NSP, it verifies: - At least one Contains:Contained By relationship with equipment - At least one Members:Member Of relationship with a logical connection.