---
sourceDocument: Yokohama Telecommunications Service Operations Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/yokohama/telecom-service-ops

 Release :

    - yokohama

ft:locale :

    - en-US

ft:publication_title :

    - Yokohama Telecommunications Service Operations Management

ft:clusterId :

    - tsom

bundleId :

    - tsom

workflow :

    - Customer and Industry


---

# Telecom Router Pattern

# Telecom Router Pattern {#ariaid-title1}

* Release version: Yokohama
* 
* Updated January 30, 2025
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 2 minutes to read

The ServiceNow® Telecom Discovery application uses the Telecom Router discovery pattern to find SNMP-based routers 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 Router pattern is part of the Telecommunications Discovery Patterns application (sn_tsom_patterns), which is part of TSOM Visibility.

## Request apps on the Store {#telecom-router-pattern__section_irz_2lk_zdc}

Visit the [ServiceNow Store](https://store.servicenow.com/sn_appstore_store.do#!/store/home) website to view all the available apps and for information about submitting requests to the store. For cumulative release notes information for all released apps, see the [ServiceNow Store version history release notes](https://www.servicenow.com/docs/r/store-release-notes/sn-store-release-notes.html).{#telecom-router-pattern__inline-send-to-store}

## Prerequisites {#telecom-router-pattern__section_dmd_tlk_zdc}

* Subscription to TSOM.
* Confirm that your network router devices have SNMP access.
* On the ServiceNow instance, configure SNMP credentials. For more information, see [SNMP support for Discovery](https://www.servicenow.com/docs/access?context=c_SNMPSupportForDiscovery&version=yokohama&pubname=yokohama-it-operations-management&ft:locale=en-US).
* For setting up TSOM Patterns, see [Configure Telecommunications Discovery (TSOM) Patterns](https://servicenow-prod.fluidtopics.net/nco9q0vAZvRynA_Z0~wUfA#configuring-telecommunications-discovery-patterns "This document outlines the dependencies, requirements, and installation steps necessary for setting up Telecommunications Discovery Patterns (also known as TSOM Patterns) in TSOM Visibility in ServiceNow.").
{#telecom-router-pattern__ul_fp5_5lk_zdc}

## Impacted CMDB CIs and CI Relationships (Physical Layer) {#telecom-router-pattern__section_f35_wmk_zdc}

{#telecom-router-pattern__table_p2q_zmk_zdc__entry__2}

| CIs | CI Relationships |
|-|-|
| IP Router CI | IP Router Device is represented by the IP Router CI. Table name: **cmdb_ci_ip_router** IP Router CI contains 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 Router. 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 Router. |
[ ]

{#telecom-router-pattern__table_p2q_zmk_zdc}

## Classifying xNFs for this Pattern {#ariaid-title2}

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

### Before you begin

Role required: admin

Classifier name: Standard Network Router.

### Procedure

1. Navigate to AllDiscovery DefinitionCI ClassificationSNMP.
2. From the list, select Standard Network Router.
3. Open the tab SNMP OID Classifications and see the list of OIDs.  
   Note:  
   For more information on how to add additional OIDs to the classifier, see [Telecom Discovery using Telecommunications Discovery Patterns](https://servicenow-prod.fluidtopics.net/FrwTTYiFXdQLq6ZdWRf_4Q "The new Telecommunication Discovery Patterns (also known as TSOM Patterns) include patterns for discovering standalone xNFs. These patterns enable the discovery of standalone network elements without a management system, using SNMP, CLI, and NETCONF (roadmap) protocols.").  
   MiB Tables Used on an xNF:
   * SystemMIB
   * EntityPhysicalMIB
   * IfMIB
   * IfXMIB
   * IpMIB
   {#classifying-xnfs-pattern-tsom-visibility__ul_ofr_d3n_zdc}

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