I I am using the Dude NMS to monitor a small camera network made by Bullet 2 (UBNT) products. The graph look like COMB the grhaph NOT Clear the trafic look fine so I asume it is only the graph view problem.
I set the SNMP to monitor the ETH interface.
Are you sure the real traffic is steady and not bursty?
What happens when you look at the graphs for the other side(s) of the link? (ethernet side and/or radio side?)
Is this from the ETH interface of the bullet, or the ETH interface of whatever the bullet is plugged into? If its plugged into a routerboard, you can get the routerboard to graph the traffic directly as well (independently of dude).