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3940533340 Y2819884002W02311264B111Z081203636B41. D 7 HQ PRWRQDER RUUL HQGR FR Q L PRW R YR D R OR V ODRV H OOHY R57347GR V SHGLR V D HVWD DQ57347H VFDQHDRV FXDWU R IDPLOLDUH V DOLLLWD V57347 XQ57347KH DR D H L GD Q SURSL QD57347T H57347H VWRRR GHVHVSHUDR HHH OXQH V D GRPL QJR YR 57347F Q D YHVSLQ (. AccECN. ). draft-kuehlewind-tcpm-accurate-ecn-03. Bob Briscoe, BT. Richard Scheffenegger, NetApp. Mirja . Kühlewind. , Stuttgart . Uni. IETF-90, Jul’14. Bob Briscoe’s work is part-funded by the European Community. More Accurate ECN Feedback Reflector . (. AccECN. ). draft-kuehlewind-tcpm-accurate-ecn-03. Bob Briscoe, BT. Richard Scheffenegger, NetApp. Mirja . Kühlewind. , Stuttgart . Uni. IETF-90, Jul’14. Bob Briscoe’s work is part-funded by the European Community. 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:. George Michelogiannakis. ,. Nan Jiang, Daniel Becker, William J. Dally. This work was completed in Stanford University. HPC and datacenter networks increasingly oversubscribed. Exascale. for HPC may need 1 billion-way parallelism. (. AccECN. ). draft-kuehlewind-tcpm-accurate-ecn-03. Bob Briscoe, BT. Richard Scheffenegger, NetApp. Mirja . Kühlewind. , Stuttgart . Uni. IETF-90, Jul’14. Bob Briscoe’s work is part-funded by the European Community. ! Packet Scheduling. Wei Bai. , Kai Chen, Li Chen, Changhoon Kim, Haitao Wu. ACM CoNEXT, Irvine, CA, December 2016. 1. Data Centers Around the World. Google’s worldwide DC map. 2. Microsoft’s DC in . Concepts and Abstract Mechanism. draft-ietf-conex-abstract-mech-07.txt. Matt Mathis, Google. Bob Briscoe. , BT. IETF-87 . ConEx. Jul 2013. Bob . B. riscoe’s contribution is partly funded by . Trilogy 2 . More Accurate ECN Feedback Reflector . (. AccECN. ). draft-kuehlewind-tcpm-accurate-ecn-03. Bob Briscoe, BT. Richard Scheffenegger, NetApp. Mirja . Kühlewind. , Stuttgart . Uni. IETF-90, Jul’14. Bob Briscoe’s work is part-funded by the European Community. Datacenter Networks. APNet. 2017, Hong Kong. Wei Bai, Kai Chen, . Shuihai. Hu. , Kun Tan, . Yongqiang. . Xiong. Data Center Applications. Network requirements. Desire . low latency . for small messages. Packet Scheduling. Wei Bai. , Kai Chen, Li Chen, Changhoon Kim, Haitao Wu. ACM CoNEXT, Irvine, CA, December 2016. 1. Data Centers Around the World. Google’s worldwide DC map. 2. Microsoft’s DC in . Packet Scheduling. Wei Bai. , Kai Chen, Li Chen, Changhoon Kim, Haitao Wu. ACM CoNEXT, Irvine, CA, December 2016. 1. Data Centers Around the World. Google’s worldwide DC map. 2. Microsoft’s DC in . draft-ietf-tcpm-alternativebackoff-ecn-06. Naeem Khademi, . Michael Welzl. , Grenville Armitage, Gorry Fairhurst. TCPM @ IETF 101. 19. 03. 2018. 1. Thank you . for comments!. We . had a detailed review from Michael .