hi, supposed that there are two routes betwen node a and d, one through b ,and the other through c. that is, the first route is a->b->d, and the send route is a->c->d. how can i send the different CBR packet on the differnt route. for example, i want send packets whose packet_id=1,3,5,7,...on the first route, and the packets whose packet_id=2,4,6,...,on the sencond route. thanks your help. hujie