Feng Gang National Laboratory of Communication,UESTC Aug 2017 Ver 1.4 Integrated Service (Intserv) The Integrated Services model(RFC1633)was introduced to guarantee a predictable behavior of the network for applications requiring QoS guarantee applications signal to the network that they require special QoS data flows among applications,with flow recording at each router SP ISP 3 ISP4 ISP 2 2616009:Network Traffic Engineering 7:IntServ and DiffServ Page.102616009: Network Traffic Engineering Feng Gang National Laboratory of Communication, UESTC Aug 2017 Ver 1.4 7: IntServ and DiffServ Page.10 - The Integrated Services model (RFC1633) was introduced to guarantee a predictable behavior of the network for applications requiring QoS guarantee - applications signal to the network that they require special QoS - data flows among applications, with flow recording at each router Integrated Service (Intserv) ISP 1 ISP 2 ISP 3 ISP 4