Moxa Technologies EtherDevice User Manual page 45

Featured Functions
The four graphs (All Packets, TX Packets, RX Packets, and Error
Packets) have the same form, so we show here only the All Packets
graph. The graph displays data transmission activity by showing
Packets/s (i.e., packets per second, or pps) versus sec. (seconds). In fact,
three curves are displayed on the same graph: Uni-cast packets (in red
color), Multi-cast packets (in green color), and Broad-cast packets (in
blue color). The graph is updated every few seconds, allowing the user
to analyze data transmission activity in real-time.
MOXA EtherDevice Server User's Manual 3-17