Link graph look like COMB

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.

Any suggestions ? please help…

http://www.box.net/shared/ssunbjq1cx

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).