PPT-Network Control Jennifer Rexford

Fall 2018 TTh 130250 in Friend 006 COS 561 Advanced Computer Networks http wwwcsprincetonedu coursesarchivefall18cos561 Traditional Division of Labor Management policy Measurement and configuration of switches. Freedman and Jennifer Rexford Dept of Computer Science Princeton University Princeton New Jersey USA pengsun minlanyu mfreed jrexcsprincetonedu ABSTRACT Content distribution networks CDNs need to make deci sions such as server selection and routing Frenetic Language for OpenFlow Networks Jennifer Rexford Princeton University http://www.frenetic - lang.org/ Joint work with Nate Foster, Dave Walker, Rob Harrison, Michael Freedman, Chris Monsanto, Class 2. Types of Networks. ISP Networks. Entity only owns the switches. Throughput: 100GB-10TB. Heterogeneous devices: laptop/desktop. Medium latency: 20-80 milliseconds. Enterprise Networks. One entity owns many of the servers + switches. Management. . and . Software-Defined Networking (SDN). EE122 Fall . 2012. Scott Shenker. http://. inst.eecs.berkeley.edu. /~ee122/. Materials with thanks to Jennifer Rexford, Ion . Stoica. , Vern . Paxson. The OCA Alliance. www.oca-alliance.com. You can easily move a signal from A to B, but what are you going to do with it when it gets there?. MEDIA. NETWORK. PROGRAM. TRANSPORT. SYSTEM. CONTROL. Why another control standard?. Princeton . University. MW 11:00am-12:20pm. Programmable Data Planes. COS 597E: Software Defined Networking. Data Plane. Streaming algorithms that act on packets. Matching on some bits, taking a simple action. Princeton University. MW 11:00am-12:20pm. Wide-Area Traffic Management. COS 597E: Software Defined Networking. Traffic Management. Assigning resources to traffic. Optimize some objective . Min congestion, max utility, min delay, …. Measurement is Here to Stay. Traffic engineering. Traffic matrix. Available bandwidth on each path. Distribution of queue lengths. Service-level agreements. At most 0.5% lost or out-of-order . packets. Fall 2017 (. TTh. 1:30-2:50 in CS 105). COS 561: Advanced Computer Networks. http://. www.cs.princeton.edu. /courses/archive/fall17/cos561/. Software-Defined Networking (SDN). 2. Controller Platform. MW 11:00am-12:20pm. Logically-Centralized Control. COS 597E: Software Defined Networking. Software Defined Networking. 2. decouple . c. ontrol . and . data . p. lanes. by . p. roviding . o. pen . s. tandard . University. MW 11:00am-12:20pm. Control-Plane Scalability. COS 597E: Software Defined Networking. Controller Scalability Challenges. Number of switches. Number of control sessions. Frequency of events. University. MW 11:00am-12:20pm. Measurement. COS 597E: Software Defined Networking. Measurement vs. Metrics. 2. active . measurements. packet and flow. measurements,. l. ink load. topology, . configuration,. Fall 2018 (. TTh. 1:30-2:50 in Friend 006). COS 561: Advanced Computer Networks. http://. www.cs.princeton.edu. /courses/archive/fall18/cos561/. Traditional Division of Labor. Management. : policy. Measurement and configuration of switches. University. MW 11:00am-12:20pm. Data-Center Traffic Management. COS 597E: Software Defined Networking. Cloud Computing. 2. Cloud Computing. Elastic resources. Expand and contract resources. Pay-per-use.