PPT-PWE3 Congestion Considerations

Author : marina-yarberry | Published Date : 2016-03-07

draftsteinpwe3congcons01 pdf Yaakov J Stein David Black Bob Briscoe PW congestion as seen by PWE3 PWE3 was originally in the transport area because handling the

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PWE3 Congestion Considerations: Transcript

draftsteinpwe3congcons01 pdf Yaakov J Stein David Black Bob Briscoe PW congestion as seen by PWE3 PWE3 was originally in the transport area because handling the congestion issue was considered critical. Transport Layer. 3-. 2. Principles of Congestion Control. Congestion:. informally: “too many sources sending too much data too fast for . network. to handle”. different from flow control!. manifestations:. Advanced Computer Networks: TCP Congestion Control. 1. Principles of Congestion Control. Congestion:. informally: “too many sources sending too much data too fast for the . network. to handle”. different from flow control!. IETF. . 88, Vancouver, BC. Lyle . Bertz. (. lyle.t.bertz@sprint.com. ). Brent Hirschman (. brent.hirschman@sprint.com. ). Supplement to . draft-bertz-dime-congestion-flow-attributes-01. RFC. 5777 Foundation. draft-ietf-pwe3-congcons. (temporarily expired). Yaakov (J) Stein. David Black. Bob Briscoe. Reminder: What this draft says …. We present two distinct cases:. . elastic. PWs carrying congestion responsive traffic. Julia Chuzhoy. Toyota Technological Institute at Chicago. Routing Problems. Input. : Graph G, source-sink pairs (s. 1. ,t. 1. ),…,(. s. k. ,t. k. ).. Goal. : Route as many pairs as possible; minimize edge congestion.. Ihsan Ayyub Qazi. Background: Congestion Control. What is congestion?. A network state where the arrival rate exceeds the service rate. Throughput starts decreasing (due to packet losses). Delay increases fast (queues build up). Control. . (part II). EE 122, Fall 2013. Sylvia Ratnasamy. http://inst.eecs.berkeley.edu/~ee122. /. Material thanks to Ion . Stoica. , Scott . Shenker. , Jennifer Rexford, Nick . McKeown. , and many other colleagues. Qi (Gill) Wang. gillwang@udel.edu. CISC 856 – . TCP/IP, Fall 2012. Special thanks to:. Dr. Paul . Amer. Guna. . Ranjan. , Justin . Yackoski. , . Namratha. . Hundigopal. and . Preethi. . Natarajan. HYPEREMIA AND CONGESTION:. There are 3 main basic requirements for normal circulatory function:-. Normal anatomic features. Normal physiologic controls, and. Normal biochemical composition of the blood.. Murari Sridharan. muraris@microsoft.com. CONEX BOF, IETF 76, Hiroshima. Its all about the apps . Apps have diverse needs. P2P, VoIP, TV, online apps, games. Filling the pipe while being TCP fair. High-speed congestion control, Autotuning the receive window, host OS (including app) bottlenecks. Global Routing via Integer Programming. Hamid . Shojaei. , . Azadeh. . Davoodi. , . and . Jeffrey . Linderoth. *. Department of Electrical and Computer Engineering . *Department of Industrial and Systems Engineering. Jian He. UT Austin. 1. Why is Congestion Control necessary?. Data . Packets. ACK. Congested . Link. Congested link vs. reliability: . long queuing delay, packet loss. But, can delay or packet loss always . udp. Congestion control. Congestion occurs when machines send too many packets to a network too quickly from the transport layer. . Performance will become degraded as packets are dropped and lost.. Success Criteria . I can give at least 5 reasons for traffic congestion in Glasgow. Lesson 5: Need for traffic management schemes - Glasgow. Why do you think there is traffic congestion in Glasgow? .

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