Text set questions is what DiffServ the combination of the system agreement and IntServ system inside bring up, Its purpose is to realize the QoS guarantees in the IP WAN even the whole Internet.

• 该文命题是DiffServ体系协议与IntServ体系的结合中提出来的,其目的是为了在IP广域网乃至整个Internet上实现QoS保障;