---
sourceDocument: Brazil Telecommunications Network Inventory
sourceDocumentLink: https://www.servicenow.com/docs/r/telecom-network-inventory

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Telecommunications Network Inventory

ft:clusterId :

    - telninv

bundleId :

    - telninv

workflow :

    - Customer and Industry


---

# Data model

# Data model {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 4 minutes to read  
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 data model contains details about your network assets, including telco equipment configuration data, port availability, and bandwidth allocations between your sites and services. It enables you to build, manage, maintain,
and allocate network infrastructure and services. It also supports the automation of design and creation of network equipment and connections for customer service orders and internal network orders.

The assets, services, and the relationships of your network inventory defines the infrastructure of your telecommunications networks. With this information, you can plan and forecast your network. You can store the data of the
asset in a network inventory record.

The Telecommunications Network Inventory application uses the Network Inventory extension classes that extend the Configuration Management Database (CMDB) Configuration Item (CI) class hierarchy. These extensions enable the CMDB to store your network inventory information. Also, these extension classes provide the standardization and consistency that are aligned with the telecommunications industry standards
bodies such as TeleManagement (TM) Forum and Metro Ethernet Forum (MEF). To learn more about the Network Inventory (NI) extension classes, see [Telecommunications Network Inventory extension classes](https://www.servicenow.com/docs/sXrvPK9hUtytRkhEzgY09Q#uses-for-network-inventory-data__section_jdk_55v_nkb).

The following diagram shows the extension classes in the data model for the network inventory.
Figure 1. Network Inventory data model

## Network site and Network location {#uses-for-network-inventory-data__section_idj_2wx_dzb}

Network site records in the Telecommunications Network Inventory application provide information about the physical location of your network equipment and resources. You can use network site records to:

* monitor from where your network connections originate and terminate
* monitor the network centers, buildings, floors, and rooms where your network assets are located
* track the operational status of your network sites
* map your network sites in your service topology
* link your physical locations to your network sites for a better visualization
* Identify network faults and outages

{#uses-for-network-inventory-data__ul_ixt_tfc_2zb}A network site is a configuration item (CI) in the Telecommunications Network Inventory application that's derived from the equipment and connections within the network site, while a location is simply a physical address.

## Telecommunications Network Inventory extension classes {#uses-for-network-inventory-data__section_jdk_55v_nkb}

The Telecommunications Network Inventory application uses the generic configuration item (CI) classes that extend the CMDB class hierarchy as shown in the following table. The following table describes the classes that are used within the application.  
{#uses-for-network-inventory-data__table_kv4_rwq_zrb__entry__3}

| Telecommunications Network Inventory class | Extends generic CI class | Description |
|-|-|-|
| TNI CI Attributes \[tni_entity\] | Non-CI class | Represents a collection of the common Telecommunications Network Inventory attributes. Use the TNI CI Attribute record to create the relevant common attributes relevant for Telecommunications Network Inventory and makes a relationship with the CI record. To learn more, see [TNI CI Attributes form](https://www.servicenow.com/docs/LgQqosDejrdfiuE7C1Rzgw "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."). |
| Network Site \[cmdb_ci_ni_site\] | Site \[cmdb_ci_site\] | Captures and maintains the location-specific attributes for each network site, including the network centers, buildings, floors, and rooms where the equipment is located. The network site records enable you to view all the equipment at a location. You can filter the locations by the assigned type, role, or function categories. To learn more, see [d88ce6323868e7db4d6aa03a5994e66db3e8e180.dita](https://www.servicenow.com/docs/KpybvOBceuGxqvTUb_2wmw "Review, update, or create your network site records in the Telecommunications Network Inventory application. These records enable you to view the location-specific attributes for each network site, including the network centers, buildings, floors, and rooms where your equipment is located."). |
| Equipment Holder \[cmdb_ci_equipment_holder\] | Hardware \[cmdb_ci_hardware\] | Represents the physical units that contain the telecommunications equipment, including the cages, bays, cabinets, slots, and relay racks. An equipment holder can contain the other equipment holders. For example, the line-ups contain the individual relay racks and each relay rack contains the equipment shelves. Use the equipment holder records to track and manage your network assets. To learn more, see [627e74d62a7f0f42aee16aefb57dfa2c13eff6cb.dita](https://www.servicenow.com/docs/bCS3hF0ZjLxvDIyPIonFaQ "Define the equipment holder that contains your telecommunications equipment, including the cabinets, racks, shelves, and slots. By defining the equipment holders, you can track and manage your network assets in the Telecommunications Network Inventory application."). To learn more about the extension classes of the equipment holder, see [Equipment holder extension classes](https://www.servicenow.com/docs/yn3PgGAPvAIbksuhUj~8RA "The Equipment Holder extension classes are the sub-classes that are extended from the Equipment Holder. You can define equipment holder records for these classes in the Telecommunications Network Inventory application."). |
| Telco Equipment \[cmdb_ci_ni_telco_equipment\] | Network gear \[cmdb_ci_netgear\] | Represents a device that provides the technical functionality in a network. Examples include the routers, modems, mobile devices, optical cables,relays, and switches. The equipment can have slots, cards, or ports. The equipment can exist within an equipment holder or by itself because not all equipment is rack mounted. Use the equipment record to track and manage the details of your telco equipment. To learn more, see [Create a telecommunications equipment instance](https://www.servicenow.com/docs/gwEuodi4uKpaDXXqvB~Sgg "Create a telecommunications equipment instance in your network. You define the equipment instances so that you can track and manage your network assets in the Telecommunications Network Inventory application."). To learn more about the equipment extension classes, see [Equipment extension classes](https://www.servicenow.com/docs/7Ew9rtBNjS4zSpW1S0LIgA "The Equipment extension classes are the subclasses that are extended from the telco equipment, network gear, and hardware tables. You can define equipment records for these classes in the Telecommunications Network Inventory application."). |
| Network Interface \[cmdb_ci_ni_interface\] | Network Port \[cmdb_ci_ni_network_port\] | Captures and maintains the equipment-specific attributes for the network interfaces. To learn more, see [Define the network interface details](https://www.servicenow.com/docs/9IEOYhpaihwNTvnIX2aD7A "Review, update, or create a network instance for a network interface that controls the signaling and management functions between your networks. You define these attributes so that you can track and manage your network instances in the Telecommunications Network Inventory application."). |
| Interface Card \[cmdb_ci_interface_card\] | Network gear \[cmdb_ci_netgear\] | Represents the interface cards that are stored in a network. Cards can occupy more than one slot and can contain other cards. They can be the equipment ports that are physical or logical (virtual). Each port is assigned a bandwidth value. The bandwidths are consumed when you use the ports in the network design. To learn more, see [Define the card details](https://www.servicenow.com/docs/eYCk72FW_aiViK7HbzMSRg "Review, update, or create a network asset instance for a card that you use in your telecommunications equipment. You define these attributes so that you can track and manage your network assets in the Telecommunications Network Inventory application."). |
| Physical Connection \[cmdb_ci_ni_physical_link\] | Network Link \[cmdb_ci_network_link\] | Represents the physical port connections on the interface cards in your network. To learn more, see [Define the physical connection details](https://www.servicenow.com/docs/2uiYAOibYGxVI00fUM0CGQ "Review update, or create a network asset instance for the physical port connection on the interface cards in your networks. You define these attributes so that you can track and manage your network assets in the Telecommunications Network Inventory application."). |
| Logical Connection \[cmdb_ci_ni_logical_path\] | Network Circuit \[cmdb_ci_network_circuit\] | Represents the logical or virtual port connections on the network interface cards. A logical connection typically represents the multiple physical connections on an interface card. To learn more, see [Define the logical connection details](https://www.servicenow.com/docs/Hv51jMGLtxTfXSB0EUYEmQ "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."). |
| Power Circuit (cmdb_ci_circuit) | Configuration Item \[cmdb_ci\] | Represents the electrical pathway that delivers power in a data center. To learn more, see [Define the power circuit details](https://www.servicenow.com/docs/6prUB5JrHBvNHJpeib7ZbA "Define the power circuit record to represent the electrical pathway that delivers power in a datacenter. By defining the power circuit records, you can track and manage your network assets in the Telecommunications Network Inventory application."). |
| Topology \[cmdb_ci_topology\] | Network Topology \[cmdb_ci_network_topology\] | Represents the grouping of the network elements such as nodes (equipment), edges (connections), and termination points (interfaces), how they are organized and connected to each other. To learn more, see [Network topology](https://www.servicenow.com/docs/fDgV~jDvJ0S3pbj5BqxVYg "The topology in the Telecommunications Network Inventory application graphically displays how the different elements in a network such as equipment, connections, and interfaces are organized and connected to one another. By using a topology, you get a bird's eye view to the network."). |
| Facility Hardware |   | Represent power, HVAC, network, and their connectivity in a data center. To learn more, see [Network inventory facility classes](https://www.servicenow.com/docs/Z2qsUAUH88rAidqiJSm6NQ "The facility classes are used to represent power, HVAC, network, and their connectivity in a data center. You can define facility hardware records for these classes in the Telecommunications Network Inventory application."). |
[Table 1. Network Inventory (NI) extension classes]

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**Related topics**   

* [Network Inventory (NI) extension classes](https://www.servicenow.com/docs/access?context=cmdb-ci-class-models-network-inventory&version=brazil&pubname=brazil-servicenow-platform&ft:locale=en-US)