甚小口径终端（ＶＳＡＴ）已广泛用于专用网络，传输数据、视频和话音等。典型的ＶＳＡＴ网络结构包括点对点双向通信、点对多点广播和交互式星形结构等。在地面段和卫星段混合的综合网络方面，ＶＳＡＴ和卫星通信找到了新的应用。就ＩＳＤＮ方面，本文探讨了这些问题及其实质，叙述了六种混合网络结构，并提出各神应用的建议。 VSATs are widely used in private networks to transmit data, video and voice. Typical VSAT network architecture includes point-to-point bi-directional communication, point-to-multipoint broadcast and interactive star structure. VSAT and satellite communications have found new applications in a mixed network of terrestrial and satellite segments. In terms of ISDN, this paper explores these issues and their essence, narrates the six hybrid network structure, and puts forward the recommendations of the various gods.