There are 3 different conncetions from the IPSs to the my network. I did some mangle rules to mark connections. To change routing marks, i use traffic monitoring with scripts. I have 30M, 16M and 16M connections. I'm not sure how to arrange traffic monitor for that 3 interfaces(I mean their thresholds and triggers) in mikrotik. Can some help me about it?

Please take a look to this presentation http://mum.mikrotik.com/presentations/US12/tomas.pdf