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Reading interface and port stats
↩ Devices
For switches, routers, and firewalls, the device Overview tab shows a live table of physical ports and interfaces — their status, speed, and traffic. This article explains how to read it.
The interfaces table
On the Overview tab, each row is a port or interface:
| Column | What it shows |
|---|---|
| Interface name | The port name or number (from the device). |
| Status | An UP or DOWN badge for the operational state. |
| Speed | Negotiated link speed, e.g. 1 Gbps. |
| RX | Latest received traffic. |
| TX | Latest transmitted traffic. |
| Traffic graph | A sparkline of the last hour of RX + TX. |
The list is ordered to put the interesting ports first: up interfaces on top, then down interfaces, and finally administratively disabled ports, shown muted at the bottom.
PoE (switches)
On switches, ports delivering Power over Ethernet show a PoE pill (with the power class where known, e.g. PoE Class 3). Expanding a port shows its detection status, such as delivering, searching, or fault.
VLANs (switches)
On switches, each port shows its VLAN:
- An access port shows its VLAN number, e.g. 10.
- A trunk port shows Trunk · native N, with the full allowed-VLAN list in the expanded row.
When the device is offline
JOATOS is honest about stale data. When a device is offline or its status is unknown, port states show as — / Unknown rather than the last-known up/down values, with a line such as:
Port state unavailable — device offline (last successful scan: …)
The full port list and counts stay visible, and the real states reappear as soon as the device is reachable again.
Notes & tips
- Traffic figures and graphs update on the device's polling interval — a denser graph means a shorter interval.
- These columns appear for Switch, Router, and Firewall types. Access points, UPSs, and Other devices don't have a ports table — see Understanding device types.
- For a point-in-time refresh outside the normal poll cycle, use Scan now — see Running on-demand scans.