Mobile Ad hoc NETwork (MANET) is an emerging area in the present mobile world. Its standards are defined by IETF. MANETs presents several desirable properties like dynamic topology, Easy of deployment and robustness, are qualify them as an attractive topic for the research community finding feasible QoS routes is a challenging issue in MANETs. The choice of the stable values in protocol configuration will affect correctness of protocol. In mobile ad hoc networks DYMO protocol suggests that the Node Traversal Time (NTT) should be a constant value, but does not refer to how this value to be adjusted with network size.