Incoming Interface Traffic

The Incoming Interface Traffic dashboard report displays the percentage of the total inbound traffic on an interface that is leaving through each of the output interfaces.

Occasionally a misconfiguration can cause a device to send traffic back through the interface where it was received. In Flow Monitor, this is called Bounce traffic. Flow Monitor alerts you to this abnormal traffic pattern by displaying a flag next to the interface(s) where the error is occurring.

Below the chart, a table is provided that includes the number of bytes, packets and flows for each output interface, as well as the percentage of the total inbound traffic leaving through that interface.

Note: sFlow, NetFlow-Lite, and J-Flow data is sent every x number of packets (configurable on the device), whereas regular NetFlow provides statistics about all of the network traffic. This means that sFlow, NetFlow-Lite, and J-Flow data provides a sampling of network traffic data that is not absolutely accurate, whereas NetFlow provides statistics about all network traffic data so that network traffic data is highly accurate. However, typically sFlow, along with the sample packets, sends accurate total interface traffic.
Data sampling methods may result in Interface Overview and Interface Detail reports that appear to have more or less traffic than is shown in the Flow Monitor Home page source information. This is because the sampled data shown in the Interface Overview and Interface Detail reports are derived the sampled data and the Flow Monitor Home page source information is derived from the total interface traffic data.

Tip: You can hover over information in the Bytes column to display popup information with average data speed as a percentage of the total interface capacity.

Note: Interfaces with an index of 0 (zero) represent the null interface on the device. This interface is the originating interface for traffic generated by the device (such as NetFlow data) and the destination interface for traffic sent directly to the device.

Incoming Interface Traffic

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