关键词: 服务提交, 资源预留, 状态变迁, 路由选择, 路由维护

Abstract: In order to develop IP technology, we analyzed the Internet integrated service model and Resource reServation Protocol(RSVP) service and constructed a state transition model of RSVP. With this model, we can analyze the finite function of RSVP in the aspect of resource reservation establishing and the conditions which RSVP relied on and get the idea to improve RSVP specification. We presented a formalized service agreement and services mapping top down. We expanded a per-reservation of RSVP to interact with QoS Routing, and added some variables in path''s state of RSVP. By means of above improved mechanisms, we can realize the reservation and maintenance of network resource and routes in data transmission for a designated flow.

Key words: service commitment, resource reservation, state transition, routing, route maintenance