Tuomas Rasku,
I have reviewed the configuration, the meter configuration looks fine. During the failed state, you have mentioned that no traffic will flood, can you please clarify this part?
Also, did you get a chance to look at the port utilization during a working condition and non-working condition? Command to check the port utilization "show ports utilization".
What is the EXOS Release running on the switch?
Regards,
Sumeesh.v