Hello When I change the hello_interval to 0.1, Hello_valid to 0.3, TC_interval to 0.25 and the TC_valid to 0.75 OLSR will send the same count of pakets as hello_interval to 0.075, Hello_valid to 0.225, TC_interval to 0.1875 and the TC_valid to 0.5625 Is OLSR still rounding 0.075 to 0.1 ? Felix