QoS路由的目的是找到一条或多条具有足够资源,以满足某种约束条件(如延迟,带宽等)的路径。在实际情况中,关于链路状态的信息并不总是确定的,这种不确定性对QoS路由的选择有着不可避免的影响。探讨其原因,在约束条件为延迟保证的前提下,讨论处理不确定信息的QoS单播路由算法。 The purpose of QoS routing is to find one or more paths that have sufficient resources to satisfy certain constraints (such as delay, bandwidth, etc.). In practice, the information about the link status is not always certain, and this uncertainty has an unavoidable impact on the choice of QoS routing. The reason is discussed, and the QoS unicast routing algorithm dealing with the uncertain information is discussed under the condition that the constraint is a delay guarantee.