Realtime Graphs

The Realtime Graphs page provides live visibility into router performance, network traffic, wireless signal quality, and active connections. All graphs update every 3 seconds and display a rolling window of recent history. This page is the primary tool for on-the-spot diagnostics when investigating connectivity, throughput, or performance issues.

Navigation

Status > Realtime Graphs

The page is divided into four tabs: Load, Traffic, Wireless, and Connections.

Load

The Load tab displays CPU utilisation over time as a stacked area graph. It shows three rolling averages, updated every 3 seconds within a 4-minute window.

Load values are expressed as a fraction of a single CPU core. A value of 1.0 represents 100% of one core. Values consistently above 1.0 indicate the processor is saturated. The three layers are stacked on the graph — the widest (bottom) layer is the 15-minute average and the narrowest (top) layer is the 1-minute average.

Below the graph, each metric shows its current value alongside the session Average and Peak since the page was opened.

Interpreting load values

Note: A brief spike in the 1-minute load is normal during configuration saves or firmware operations. Sustained high load (15-minute average above 1.0) warrants investigation — check active VPN sessions, traffic volumes, and any scheduled tasks.

Traffic

The Traffic tab shows inbound and outbound throughput in real time for each network interface. All interfaces present on the router appear as sub-tabs — select a tab to display traffic for that interface.

Interface sub-tabs

The graph displays a 3-minute rolling window at 3-second intervals. Below the graph, current, average, and peak values are shown for both Inbound and Outbound traffic in kbit/s and kB/s.

Practical use

• Use ifmobile to verify that data is flowing over the cellular connection and to check throughput levels
• Use Wired-WAN to confirm traffic on a wired uplink
• Use br-lan or WiFi to identify which LAN clients are generating traffic
• Compare inbound and outbound to identify asymmetric conditions or one-sided traffic flows

Wireless

The Wireless tab shows the signal strength and noise floor of the router's Wi-Fi radio in real time. The WiFi sub-tab represents the 2.4 GHz radio (radio0).

The graph shows a 3-minute rolling window at 3-second intervals. Below the graph:

Reading Wi-Fi signal values

Note: If the graph shows a value of -255 dBm, this indicates no Wi-Fi clients are currently associated or the radio has no active connection to report. This is expected when the Wi-Fi is enabled but no devices are connected.

Connections

The Connections tab provides two views of active network traffic: a graph of connection counts by protocol, and a live table listing every active connection through the router.

Active Connections graph

The stacked area graph shows the number of concurrent active connections, broken down by protocol, over a 3-minute window at 3-second intervals.

Below the graph, current, average, and peak connection counts are shown for each protocol.

Connection table

Below the graph, a table lists every active connection tracked by the router's conntrack table. The table refreshes automatically.

Reading the connection table

The table is particularly useful for identifying what the router and attached devices are communicating with. Common patterns to look for:

Note: The connection table reflects the router's conntrack state, not a packet capture. Short-lived connections (e.g. individual DNS queries) may have already closed by the time they appear, so they may not always be visible.