Check Average Network usage meaning

Hello,

I find there are some different output compare with some manual when get Average Network Usage data like below:

# get system performance status | grep "Average network usage" Average network usage: 4501 / 5313 kbps in 1 minute, 4964 / 6083 kbps in 10 minutes, 2814 / 3580 kbps in 30 minutes

It have 2 values there  like "4501 / 5313 kbps in 1 minute".  Did you know what is meanings?

My environment is running HA with A-P mode.  May be this is something related.

Thanks!