--- sourceDocument: Zurich Telecommunications Network Inventory sourceDocumentLink: https://www.servicenow.com/docs/r/zurich/telecom-network-inventory Release : - zurich ft:locale : - en-US ft:publication_title : - Zurich Telecommunications Network Inventory ft:clusterId : - telninv bundleId : - telninv workflow : - Customer and Industry --- # Define the logical connection details # Define the logical connection details {#ariaid-title1} * Release version: Zurich * * Updated July 31, 2025 * * ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 3 minutes to read Review, update, or create a network asset instance for a logical or virtual port connection on your network interface cards. You define these attributes so that you can track and manage your network assets in the Telecommunications Network Inventory application. ## Before you begin Role required: sn_ni_core.inventory_admin, sn_ni_core.inventory_agent ## About this task A logical connection typically represents the multiple physical connections on an interface card. The logical connection data includes the link types, bandwidths, port, and site. When you create a logical connection record, it creates a corresponding configuration item (CI) record in the Logical Connection \[cmdb_ci_ni_logical_path\] table. To learn more, see [Data model](https://www.servicenow.com/docs/0bOJNGLMTE6zmbbJa5uiXw "The data model for Telecommunications Network Inventory displays the relationships between your network assets, infrastructure, and services. With this information, you can provision new services, modify existing services, maintain the network, and plan the forecast for the network growth in your organization."). The Overview tab in the logical connection record displays a consolidated detail of the logical connection, its connection elements, and A and Z ends. You can customize the connection elements table by creating a custom implementation for the extension point sn_ni_adv.TNIConnectionOverview. Also, you can decide the number of rows in this table by setting the system property sn_ni_adv.clr_max_rows. The default value for this property is 500. ## Procedure 1. Navigate to WorkspacesNetwork Inventory Workspace. 2. Select the list icon (![List icon.]()), and then select InventoryLogical Connections. Note: You can also access the logical connection list by selecting the Logical connection count in the Network entities. Logical connection count is under the categories widget of the Network Inventory Workspace landing page. To learn more, see [Reviewing and updating your network inventory with the Network Inventory Workspace](https://www.servicenow.com/docs/fZajyy~dLMfmchOtLaTTyQ "You use the Network Inventory Workspace to manage your inventory and perform the tasks in the Telecommunications Network Inventory application."). 3. Select New. 4. On the Details tab, in the Logical Connection section, fill in the general information for the logical connection. To learn more about the fields that are unique to the Logical Connection form, see [Logical Connection form](https://www.servicenow.com/docs/V~VYDEZcKbjNR4mGe0bgxQ#logical-connection-form "The Logical Connection form enables you to describe the details for a logical connection."). To learn about the remaining identification fields that are common to most of the Inventory and Inventory number allocation menu forms, see [Commonly used network asset instance identification fields](https://www.servicenow.com/docs/JwHLYNwZPspVxlhyokRuyQ "Some network asset instance fields are common in the identification sections of the Telecommunications Network Inventory forms. The ServiceNow AI Platform uses these fields to identify and categorize your network inventory assets.").{#define-tni-logical-connections__ph-common-identifying-fields} 5. On the Details tab, in the Configuration section, fill in the configuration information for the logical connection. To learn more about the fields that are unique to the Configuration section, see [Logical Connection form - Configuration](https://www.servicenow.com/docs/V~VYDEZcKbjNR4mGe0bgxQ#logical-connection-configuration "The Configuration section in the Logical Connection form enables you to create a logical connection."). To learn about the remaining configuration fields that are common to most of the Inventory menu forms, see [Commonly used network asset instance configuration fields](https://www.servicenow.com/docs/7MACnbCM842nqa3UzucpiA "These fields, listed in alphabetic order, are common to some or most of the Configuration sections in the Telecommunications Network Inventory forms. The ServiceNow AI Platform uses them to configure individual network assets when you define your network asset instances.").{#define-tni-logical-connections__ph-common-configuration-fields} 6. To create the Telecommunications Network Inventory attributes for the Logical Connection form, select Set Inventory Attributes. When you select the Set Inventory Attributes button, it creates the TNI CI Attributes record in the CI table as well as the Telecommunications Network Inventory CI Attributes tables and makes a relationship with the CI record. Note: If you select Save without selecting Set Inventory Attributes, it creates a CI record but not a Telecommunications Network Inventory CI record. In the network inventory workspace, the Set Inventory Attributes is visible only for the Telecommunications Network Inventory roles. 7. On the TNI CI Attributes form, fill in the fields. To learn more about the Telecommunications Network Inventory attribute fields, see [TNI CI Attributes form](https://www.servicenow.com/docs/tt~zkxLO9isJfrJ4YcQx8g "The TNI CI Attributes form enables you to create the Telecommunications Network Inventory attribute details for a network inventory in the Telecommunications Network Inventory application."). 8. Select Save. The Telecommunications Network Inventory attribute fields are displayed on the Logical Connection form after you save the TNI CI Attributes form. The Set Inventory Attributes doesn't appear when you reopen the CI record. 9. To add the attachments, such as graphics or documents, select the attachment icon (![Attachment icon.]()) in the right panel. 10. Select Save. The related tabs appear on the form. You can view or modify the related tab information. To learn more about the related tabs, see [Related tabs in the network inventory forms](https://www.servicenow.com/docs/DKgkJjZ_MJokrebe7S98Gw "The related tabs in the Network Inventory forms display the related records that dynamically change based on the connection and relationships with the other network assets. You can selectively view, modify, or update these records."). 11. To view the visual representation of the selected record, select the more options icon (![More Options icon.]()) and then select Open Map. Note: Install Service Graph Workspace or CMDB Workspace 3.5.0 or greater version to get this button in your instance. To learn more, see [CMDB Workspace](https://store.servicenow.com/sn_appstore_store.do#!/store/application/c8ab76825371201032b7ddeeff7b1280/3.5.0) or Service Graph Workspace. 12. **Optional:** Select the more options icon (![More Options icon.]()) and then select Add Packs to capture the attributes for a configuration item (CI) record. To learn more, see [Attribute pack for CI records](https://www.servicenow.com/docs/28ekwvvbl8GSUb~4RMKRQw "Use an attribute pack to capture the attributes that you define for a configuration item (CI) record in the Telecommunications Network Inventory application and update the attribute values."). 13. **Optional:** Select the more options icon (![More Options icon.]()) and then select Decommission to decommission a CI record. To learn more, see [Decommission an inventory record](https://www.servicenow.com/docs/ksbHVO5xEy_RR4nzHqZqWA "Decommission an inventory record that you want to remove from Telecommunications Network Inventory."). 14. To view the associated network inventories, select the brick icon (![Brick icon.]()). The Infrastructure Relationships section shows all the associated network inventories grouped by the individual network asset instances. {#define-tni-logical-connections__steps_mc2_zkd_wrb} ## What to do next * If you want to establish relationships with the other network assets, enter the details in the related tabs. To learn more, see [Related tabs in the network inventory forms](https://www.servicenow.com/docs/DKgkJjZ_MJokrebe7S98Gw "The related tabs in the Network Inventory forms display the related records that dynamically change based on the connection and relationships with the other network assets. You can selectively view, modify, or update these records."). * To delete an inventory record, see [Delete a record](https://www.servicenow.com/docs/aSZ1YrG5UWvNVPoXe9M23w "Delete an inventory record that is no longer relevant or needed in the Telecommunications Network Inventory application."). {#define-tni-logical-connections__ul_hnw_wwl_lzb} **Related concepts** * [Model your workflow](https://www.servicenow.com/docs/dBkGBCgvyZkJWaqZjjlJ2A "Learn how to create a network inventory record in the Telecommunications Network Inventory application to store the details about your network assets. As you create the records, you can also define the relationship between each inventory record so that you can design a digital model of your network.") *[\>]: and then