[Check_mk (english)] bandwidth usage report

Hi,
I want to have a graph (per port) that shows the bandwidth usage of my cisco sw (more than one sw) during the specified period of time(eg. last 3 weeks).no packets and 'errors and discards' graph.
any way to have such report in check_mk raw edition?!
pnp4graph basket is not good because it's save in browser cache. I try to create view but it show 3 graph for each port!
any idea?!