SNMP References

About this section

SNMP references combine vendor PENs, system and custom OIDs, and the CMDB reference data for hardware classes, device types, and modules. The same data is used by monitoring templates and by the OID browser.

Section Contents

Stats and Quick Actions

The top of the page contains three cards. They summarize the reference database and provide quick access to browsing and import actions.

Card What it shows Action
Vendor PENs Registered vendors grouped by Private Enterprise Number Opens the vendor list
System OIDs Standard OIDs from the bundled MIB set; while import is running, this card shows a loading state and the last update time Opens the OID browser in system scope
Vendor OIDs Custom OIDs imported from vendor MIBs or added to the database Opens the OID browser in custom scope and the MIB import button
Automatic updates

The stats refresh automatically. While a MIB import is running, the system OID card shows the loading state and the View button is disabled. After the import finishes, the cards and the OID browser refresh.

CMDB Browser

The three-panel browser shows Hardware classes, Device types, and Module types. It helps you build monitoring templates from the same CMDB entities the current UI uses.

How filtering works

Panel 1: Hardware classes

Choose a class such as network, compute, storage, peripheral, facility, or telecom. The selected class filters the two panels to the right.

Panel 2: Device types

Shows devices for the selected class. This is useful for checking the alias and display name before creating or editing a template.

Panel 3: Module types

Shows modules for the selected class. Select a module to load its metric list.

Module metrics

After selecting a module, the page shows a Module metrics: ... table with the same fields used in the UI:

Field Meaning
ID Metric identifier
Name Human-readable metric name
Unit Unit of measure, if one is defined
Description Metric description used by monitoring templates
Anomalies A short summary of anomaly rules, if they are configured for the metric
How it is used

The CMDB browser is there to help you pick the right metric set before building a monitoring template. It shows only the entities that are actually used by the current interface.

OID Browser

The OID browser is opened from the System OIDs and Vendor OIDs cards. It lets you search by OID, MIB, table, or name, then inspect the selected record in detail.

Tree structure

The root node is shown as SNMP (1.3.6.1). In system scope you see the standard tree, and in custom scope you can work with vendor branches starting at 1.3.6.1.4.1.

1.3.6.1
├── 1.3.6.1.2.1         Standard MIBs
│   ├── 1.3.6.1.2.1.1   system
│   ├── 1.3.6.1.2.1.2   interfaces
│   └── ...
└── 1.3.6.1.4.1         Vendor OIDs
    ├── 1.3.6.1.4.1.9   Cisco
    ├── 1.3.6.1.4.1.11  HPE
    ├── 1.3.6.1.4.1.318 APC
    └── ...

What the browser offers

  • Search by OID, MIB, table, or name
  • Expandable tree navigation with lazy-loaded children
  • Details panel with OID, Name (mib:table:name), Unit (unit), and Type (syntax)
  • Localized and full OID descriptions in the right panel

Markers and descriptions

The green marker next to a node means that a description is available for that OID. The More... link opens the full description dialog.

Field Meaning
Localized description Description that matches the current UI language, if available
Original MIB description The source description from the MIB file
More... Opens the full description in a separate dialog
Branch deletion

The Delete button is available only in custom scope and removes only the selected vendor branches under 1.3.6.1.4.1.<vendorId>. System OIDs are protected.

Upload MIBs

The Upload MIBs button on the Vendor OIDs card opens the ZIP import dialog for MIB files.

Import flow

  1. Prepare a ZIP archive with MIB files
  2. Click Upload MIBs
  3. Select the archive in the upload dialog
  4. Review the imported and invalid counts
Important

Only ZIP archives are accepted. After a successful upload, the system shows how many records were imported and how many were invalid, and the detailed output goes to the logs.

What changes after import

New custom OIDs become available in the OID browser immediately, and the stats cards refresh without reloading the page.

Vendor Branch Management

The View button on the Vendor PENs card opens the vendor list with PEN and name. It is a quick way to verify a vendor before import or cleanup.

Deleting branches

  1. Open the OID browser in custom scope
  2. Select the vendor roots you want to remove
  3. Confirm the deletion
Limitations

Only custom branches are removed. The system OIDs shipped with INFRAX are protected. If a branch is used in monitoring templates, the rules that reference it will stop working correctly.

Next steps

See how these references are used in SNMP Monitoring Templates and how SNMP is configured on nodes in SNMP Monitoring.