I'm using traffic sensors on my Zyxel switches. In the graph below
I was transferring some large files from Server 1 to Server 2, going through 4 switches. I have these sensors set for vertical scaling. Switch 1 and 4 max out at 1000000 kbit/s, and Switch 2 and 3 max out at 500000 kbit/s.
The graphs match up but the speeds do not. And it's not the vertical scaling doing it because if I put switch 2 and 3 to 1000000 kbit/s like the others the graph reduces by half.
Below is the data from the beginning of the file transfer
You can see that the trunk ports between switch 1 and switch 2 show a difference of about half.
So my question is does anyone know why this is happening? Which one is correct? And is it possible to fix?