"FDB history" component (fdb_history)➧
Overview
Stores the history of MAC tables (FDB): on which port or ONU and when each MAC address was seen. Helps find where a subscriber was connected before or track equipment moves.
What it provides➧
- The "FDB history" card on port and ONU pages — Port or ONU page
- MAC search in history (global search, API)
- The "Save FDB to history" setting per interface ("Storage info" card)
How it works➧
The poller periodically reads FDB tables from switches and OLTs (the fdb_table polling interval is set per model/device).
For each MAC address the interface, VLAN, first and last seen time are stored. While the MAC is present on the port the record is marked "active now"; when it disappears, the last seen time is recorded.
Saving can be disabled per interface ("Storage info" card → "Save FDB to history") — the history of this interface is cleared.
Permissions➧
| Permission | What it allows |
|---|---|
| Show history by interface | Viewing history on a port/ONU |
| Search in FDB history | MAC search across the whole history |
Note
Turn off FDB saving for uplinks and trunk ports — they carry thousands of MAC addresses that give no useful information.
Enabling➧
The component is enabled in Configuration > System configuration → "Components" tab or with:
See also➧
- Search devices
- Poller — FDB polling interval