Excessive Traffic Rate: Broadcast by Source

Overview: 

The "Excessive Traffic Rate: Broadcast by Source" diagnostic alerts when the frequency of broadcast packets on your network exceeds the test threshold. The context result will tell you the rate of broadcast packets per minute (PPM), as well as the largest broadcast rate from a single device.

Causes:

While it's common to see a lot of broadcast packets in the BACnet protocol, without managing device broadcast frequency, they can become overwhelming to the network as each device must process every broadcast message.

Implications:

A broadcast flood can have serious implications on overall network performance and stability.

How to Fix It

• Use OptigoVN Site Scope(s) to identify the MAC/IP addresses of all devices transmitting a high rate of broadcast messages. Adjust the configurations of devices to lower the frequency of broadcast messages, and retest to ensure the issue has been resolved.
• Network routing: Consider whether devices with high broadcast need to be in contact with all other devices in your network. If possible, create routing limiting the number of devices the broadcast will reach.