Each of these protocols has its application area, for example, RMTP bases on the tree topology, RMP bases on the ring topology, while XTP and SRM have no restrictions on topology at all.

• 这些协议有各自不同的适用范围：如RMTP协议基于树的拓扑结构，RMP基于环的拓扑结构，而XTP和SRM则没有拓扑的限制。