Add an OLT

Connect your OLT device to Zettabit for fiber network monitoring.

Prerequisites

Before adding an OLT:

1. OLT is accessible - Management IP is reachable
2. SNMP configured - SNMP service enabled with community string
3. Credentials ready - Username/password for Telnet (if needed)

Preparing Your OLT

Enable SNMP

Most OLTs require SNMP for monitoring. Configure SNMP on your device:

BDCOM Example

snmp-server enable
snmp-server community public ro
snmp-server community private rw

Configure Management Access

Ensure the OLT’s management interface is accessible from Zettabit’s network.

Adding the OLT

1. Navigate to Network > OLTs

Click Network in the sidebar, then OLTs.

2. Click Add OLT

Click the Add OLT button.

3. Fill in Device Details

Basic Information

Connection Settings

Telnet/SSH Settings (if supported)

4. Test Connection

Click Test Connection to verify settings.

A successful test shows:

• Device response
• System information
• ONU count

5. Save

Click Save to add the OLT.

Vendor-Specific Settings

BDCOM

• Default SNMP community: “public”
• Use SNMPv2c for best compatibility

VSOL

• SNMP usually enabled by default
• Check web interface for community string

Zibbix

• Configure SNMP via web interface
• Use SNMPv2c

Connection Methods

SNMP Only

Basic monitoring:

• ONU status
• Signal levels
• Port information

SNMP + Telnet

Full management:

• All SNMP features
• Configuration changes
• Advanced commands

After Adding an OLT

Once added, Zettabit will:

1. Connect and verify credentials
2. Discover PON ports
3. List connected ONUs
4. Begin periodic monitoring

Initial discovery may take a few minutes depending on ONU count.

Troubleshooting

”SNMP timeout”

• Check IP address is correct
• Verify SNMP is enabled on OLT
• Check community string
• No firewall blocking UDP 161

”Authentication failed”

• Wrong community string
• Access list blocking your IP
• SNMPv3 configured but using v2c

”No ONUs found”

• OLT accessible but empty
• SNMP OID not supported
• Vendor selection incorrect

”Partial data retrieved”

• Some OIDs not supported
• Firmware version differences
• Try different vendor profile

Security Recommendations

1. Use SNMPv3 - If supported, for encrypted communication
2. Strong community strings - Don’t use “public” in production
3. Restrict access - Limit SNMP to specific IP addresses
4. Read-only first - Use read-only community for monitoring
5. Separate networks - Put management on dedicated VLAN

Editing an OLT

To modify OLT settings:

1. Click on the OLT in the list
2. Click Edit
3. Update settings
4. Test connection
5. Save changes

Deleting an OLT

To remove an OLT:

1. Click the Delete button
2. Confirm deletion

Note: This only removes the OLT from Zettabit, not the physical device.