Feng Gang National Laboratory of Communication,UESTC Aug 2017 Ver 1.4 Outline An overview on Internet applications and QoS requirements Internet architecture and Protocols 。 Internet traffic control and Congestion Control Traffic policing and shaping buffer management (e.g.tail drop,AQM:RED,Blue,...) Packet scheduling (e.g.WFQ,DRR,etc.). TCP,ECN,etc. Standardized services Intserv/RSVP,DiffServ 2616009:Network Traffic Engineering 1:Overview Page.22616009: Network Traffic Engineering Feng Gang National Laboratory of Communication, UESTC Aug 2017 Ver 1.4 1: Overview Page.2 Outline • An overview on Internet applications and QoS requirements • Internet architecture and Protocols • Internet traffic control and Congestion Control - Traffic policing and shaping - buffer management (e.g. tail drop, AQM: RED, Blue,…) - Packet scheduling (e.g. WFQ, DRR, etc.). - TCP, ECN, etc. • Standardized services - Intserv/RSVP, DiffServ