IntroductionIntroduction toto SoftwareSoftware DefinedDefined . NetworkingNetworking (SDN)(SDN) SDN=Standard Southbound API SDN = Centralization of control plane SDN=OpenFlow SDN = Separation of Control and Data Planes Raj Jain Washington University in Saint Louis Saint Louis, MO 63130
[email protected] These slides and audio/video recordings of this class lecture are at: http://www.cse.wustl.edu/~jain/cse570-13/ Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ ©2013 Raj Jain 16-1 OverviewOverview 1. What is SDN? 2. Alternative APIs: XMPP, PCE, ForCES, ALTO 3. RESTful APIs and OSGi Framework 4. OpenDaylight SDN Controller Platform and Tools Note: This is the third module of four modules on OpenFlow, OpenFlow Controllers, SDN and NFV in this course. Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ ©2013 Raj Jain 16-2 OriginsOrigins ofof SDNSDN SDN originated from OpenFlow Centralized Controller Easy to program Change routing policies on the fly Software Defined Network (SDN) Initially, SDN= Application … Application Separation of Control and Data Northbound Plane API Network Controller Centralization of Control Southbound API OpenFlow OpenFlow to talk to the data plane Switch Switch … Switch Now the definition has changed significantly. Overlay (Tunnels) Washington University in St. Louis http://www.cse.wustl.edu/~jain/cse570-13/ ©2013 Raj Jain 16-3 WhatWhat isis SDN?SDN? SDN=OpenFlow SDN=Standard SDN = Centralization Southbound API of control plane SDN = Separation of Control and Data Planes All of these are mechanisms. SDN is not a mechanism. It is a framework to solve a set of problems Many solutions Washington University in St.