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Add an OLT
Before you start, make sure SNMP v2c is enabled on the OLT and that it accepts SNMP from your Zal Ultra server — see Requirements.
1. Open the OLT list
Go to Network → OLTs. The OLT Devices list shows all OLTs of the current ISP and branch.
2. Add the OLT
Click Add OLT Device.
First OLT
If the page says No OLT Vendors Found!, click Load Vendors at the top. This adds the vendor list (BDCOM, Huawei, ZTE, V-Sol, Nokia, C-Data, Ecom). You only need to do this once.
Fill in the form:
Basic Information
| Field | Required | What to enter |
|---|---|---|
| OLT Name | Yes | A name you will recognise, e.g. Main OLT |
| Vendor | Yes | The OLT brand. See Supported OLTs |
| Model | No | The model, e.g. V1600GI or MA5800-X7. Zal Ultra fills or corrects it when you test the connection |
| IP Address | Yes | The OLT's management IP address, e.g. 192.168.1.1 |
| PON Type | Yes | EPON or GPON. Zal Ultra corrects it when you test the connection |
| Location | No | Where the OLT is, e.g. Main Office |
| Description | No | Any note |
SNMP Configuration
| Field | Required | What to enter |
|---|---|---|
| SNMP Version | Yes | SNMP v2c (v3 is not available yet) |
| SNMP Community | Yes | The OLT's read-only community string. Default: public |
| SNMP Port | Yes | Keep 161 |
| SNMP Timeout (seconds) | No | How long to wait for the OLT. Default 5. Raise it (e.g. 10) for an OLT over a slow or distant link |
| SNMP Retries | No | How many times to retry. Default 3 |
Click Add OLT Device. You will see OLT added successfully and return to the list. The OLT's connection shows Unknown until it is tested.
3. Test the connection
In the list, click the Test Connection (plug) icon on the OLT, or open the OLT and click Test Connection.
- Connection successful — Zal Ultra shows what the OLT reports: vendor, model, PON type, system name and uptime. The OLT's connection becomes Online.
- Connection failed — check the troubleshooting steps.
If the OLT reports a different model or PON type from what you entered, Zal Ultra corrects it automatically and shows it under Auto-corrected, e.g. PON Type: GPON → EPON. This makes sure the right settings are used for your model.
4. Discover the ONUs
Open the OLT and click Discover ONUs to find all ONUs on it. See Discover ONUs.
OLT list
| Column | Meaning |
|---|---|
| Name | OLT name, with the model under it |
| Vendor | OLT brand |
| IP Address | Management IP |
| PON Type | EPON or GPON |
| Status | Enabled — monitored automatically · Disabled — not monitored |
| Connection | Online — answering SNMP · Offline — not answering · Unknown — not tested yet |
| ONUs | Number of online ONUs at the last discovery |
Row buttons: View, Edit, Test Connection and Discover ONUs. The search box finds OLTs by name, IP address or model.
OLT details page
Click View on an OLT to open its page:
- OLT information — vendor, model, IP, PON type, location, status, connection, SNMP version and port, and when the connection was last tested.
- Statistics — Total ONUs, Online ONUs, Offline ONUs, Unmapped ONUs (not linked to a subscriber) and Uptime (the share of ONUs online).
- ONUs on this OLT — every ONU found on the OLT. See ONUs.
Buttons at the top: Back to OLT List, Edit OLT, Test Connection, Discover ONUs and Clear All ONUs (see Clear all ONUs).
Edit or disable an OLT
Click Edit on the OLT, change any field and click Update OLT Device.
Set Status to Disabled to stop the automatic connection checks, ONU discovery and signal readings for that OLT, for example while it is out of service. Its ONUs and their history are kept. Set it back to Enabled to start again.