PPT-VeriFlow : Verifying Network-Wide Invariants in Real Time

Ahmed Khurshid Wenxuan Zhou Matthew Caesar P Brighten Godfrey University of Illinois Presented by Ofri Ziv November 2013 Outline Motivation Design Evaluation Example Conclusion Motivation. and characterizing . the quantum. metric tensor. Michael . Kolodrubetz. , Physics . Department, Boston University. Equilibration and . Thermalization. Conference, . Stellenbosh. , April 17 2013. In collaboration with:. Anh. . Le, . Arash. . Tehrani. , . Alex . Dimakis. , . Athina. . Markopoulou. UC . Irvine, USC, UT Austin. Presented by . Marios. . Gkatzianas. Real-time applications that use wireless broadcast:. IS 333. Spring . 2015. Q1. Q: What is network latency?. Changes in delay and duration of the changes. time required to transfer data across a network. amount of data that can be transferred, per unit time.. Swarup. Kumar . Sahoo. John Criswell. Chase . Geigle. Vikram. . Adve. 1. Department of Computer Science. University of Illinois at Urbana-Champaign. Motivation - 1. 2. Software bugs cost ~$59.5 billion annually (about 0.6% of the GDP). open flow network simulator and emulator.. IEEE Communications Magazine.  51.9 (2013): 110-117. .. Wang, . Shie. -Yuan, . Chih. -Liang Chou, and Chun-Ming . Yang. . from National . Chiao. Tung University, Taiwan. SDN Data & Control Planes:. Header Space Analysis. Trouble-Shooting Network is Hard!. Forwarding state . is hard to analyze!. 2. .. .. .. Rule. Rule. Rule. .. .. .. Rule. Rule. .. .. .. Rule. Rule. SDN Data & Control Planes:. Header Space Analysis. SDN Stack. State layers . hold a . representation . of the . network’s configuration. . Code layers implement. logic . to maintain the . mapping between . I/O Service in . Commodity Systems. Mark . Stanovich. 1. Outline. Motivation and Problem. Approach. Research Directions. Multiple worst-case service times. Preemption coalescing. Conclusion. 2. Overview. M. ustafa . Wide Area Network (WAN). Computers connected to a wide area network are often connected through community networks, such as the telephone organization. They can also be connected through rented lines or satellites. . Gaunnan Guo. 1. Ironfleet: proving practical distributed systems correct. Chris Hawblitzel, Jon Howell, Manos Kapritsos, Jacob R. Lorch, Bryan Parno, Michael L. Roberts, Srinath Setty, Brian Zill. Presented by Wesley Ma. Alex Jakeman. 2. Describe the challenges UK Power Networks is facing in East Kent – Kent Active System Management (KASM). Explain the current real-time data exchange capabilities. Explain how this data is used and what additional data we need. Cyber-Physical Systems under . Strategic Adversaries. Paul Wood. PhD . Final . Examination. Chair. :. Prof. . Saurabh. . Bagchi. Committee Members: . Prof. . Milind. Kulkarni. Prof. Charles A. . Jennifer Rexford. Princeton University. The Great Success of the Internet. 1. IP network. Best-effort packet delivery. Arbitrary . applications. Programmability: determines . who. can effect change, and . Superspreaders. . Lu Tang. †. . , . Qun. Huang. ‡. , and Patrick P. C. Lee. †. † . The Chinese University of Hong Kong. ‡ . Institute of Computing Technology, CAS. IEEE INFOCOM 2020. 1.