1 / 24

Open networking w/ OpenFlow @ Marist College

http://openflow.marist.edu. Open networking w/ OpenFlow @ Marist College. Software Defined Networks. Who’s Involved ?. This Talk…. What is SDN and why make the move towards SDN? What can SDN provide? How does OpenFlow fit into the SDN paradigm?

warren
Télécharger la présentation

Open networking w/ OpenFlow @ Marist College

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. http://openflow.marist.edu Open networking w/ OpenFlow @ Marist College Software Defined Networks

  2. Who’s Involved ?

  3. This Talk… • What is SDN and why make the move towards SDN? • What can SDN provide? • How does OpenFlow fit into the SDN paradigm? • What can we do with the OpenFlow protocol? • Simple OpenFlow examples. • Where can I find more information about OpenFlow and SDN?

  4. Why Software Defined Networks? • Buzzword “Virtualization of the Network” • Network Abstraction / Reduce Complexity (networks are inherently complex) • Traditional TCP/IP Layers • Centralized Network Intelligence (Control) • Distribution Model is programmers choice not the networks choice • State Control • Control Plane separated from Data Plane • Packet Forwarding

  5. Software Defines Networks SDN Device HW Abstraction Decoupled Control Logic Control Application

  6. Software Defined Networks

  7. Where does OpenFlow fit in? • OpenFlow “a piece of the SDN puzzle” • An Open Standard • Enables the ‘forwarding abstraction’ of the network (per device) • Cross-vendor communication solution • Enables Innovative software defined network solutions • Routing Protocols • Network Administration • Load Balancing • Security • & More

  8. OpenFlow: “An Interface” • An Open Standard (as stated before) • Separates the Control and Data path of the switch • “OpenFlow Controller” takes care of Control Logic • Switch/Router communicate over OpenFlow Protocol • OpenFlow Protocol • Defines OF Message • Creates a Flow Table abstraction • Flows match on packet fields and have actions associated • Static, Dynamic and Aggregate flow matching Good place to start: OpenFlow Spec (1.1.0 also currently implemented) http://www.openflow.org/documents/openflow-spec-v1.0.0.pdf

  9. OpenFlow: Part of SDN

  10. What does OpenFlow do in SDN?

  11. Marist, SDN and OpenFlow • Goal: Create an OpenFlowtesting and compliance facility & network • Be part of the research around SDN • Develop and help the ONF/OpenFlow community grow • Contribute the the community

  12. Marist OpenFlow SDN Environment

  13. Research Plans • OpenFlow testing and compliance checklist • Research and Development publications • Open source OpenFlow controller code to community • Explore use cases for OpenFlow and test themi.e. • How can OpenFlow be used in the datacenter? • If any what type of benefits does OpenFlow have that traditional networks don't? • How scalable and robust is it/ the controllers? The List goes on

  14. Demos • ACLs (Firewall Based) • VLANING the network • Routing L2 & L3 • QoS • Floodlight Modules • Jason Parraga : Floodlight “Administrative Control Panel” Demo’s In Hancock Center Hallway

  15. import httplib import json class StaticFlowPusher(object): def __init__(self, server): self.server = server def get(self, data): ret = self.rest_call({}, 'GET') return json.loads(ret[2]) def set(self, data): ret = self.rest_call(data, 'POST') return ret[0] == 200 def remove(self, objtype, data): ret = self.rest_call(data, 'DELETE') return ret[0] == 200 def rest_call(self, data, action): path = '/wm/staticflowentrypusher/json' headers = { 'Content-type': 'application/json', 'Accept': 'application/json', } body = json.dumps(data) conn = httplib.HTTPConnection(self.server, 8080) conn.request(action, path, body, headers) response = conn.getresponse() ret = (response.status, response.reason, response.read()) print ret conn.close() return ret • Create a StaticFlowPusher Object • This will allow a static programmable interface to write scripts to support flow tables across your network using Floodlight’s REST API. • Supports Flow_Mod • Get • Set • Remove • Sends HTTP Requests • GET • POST • DELETE

  16. import StaticFlowPusher #Switches used for tests #Switch 00:0a:34:40:b5:3c:18:00 #Switch 00:0a:34:40:b5:40:b8:00 #Switch manufacturer: Blade Network Technologies #Switch manufacturer: Blade Network Technologies pusher = StaticFlowPusher.StaticFlowPusher(’xxx.xxx.xxx.xxx’) flow1 = { 'switch':"00:0a:34:40:b5:3c:18:00", "name":"allow-webaccess", "ingress-port":"19", "cookie":"0", "dst-ip":”x.x.x.223", #webserver "dst-port":"80", "ether-type":"2048", "protocol":"6", "priority":"32768", "active":"true", "actions":"output=all" } flow2 = { "switch":"00:0a:34:40:b5:3c:18:00", "name":"drop-web-access-all", "ingress-port":"19", "cookie":"0", "dst-port":"80", "ether-type":“2048", "protocol":"6", "active":"true", "priority":"32768", "actions":"" } pusher.set(flow1) pusher.set(flow2)

  17. import StaticFlowPusher #Switches used for tests #Switch 00:0a:34:40:b5:3c:18:00 #Switch 00:0a:34:40:b5:40:b8:00 #Switch 00:0a:34:40:b5:3c:18:00 manufacturer: Blade Network Technologies #Switch 00:0a:34:40:b5:40:b8:00 manufacturer: Blade Network Technologies pusher = StaticFlowPusher.StaticFlowPusher(’xxx.xxx.xxx.xxx') flow1 ={ 'switch':"00:0a:34:40:b5:3c:18:00", "name":"flow-mod-2", "cookie":"0", "priority":"32768", "ingress-port":"19", "ether-type":"2048", "src-ip":”x.x.x.224", "active":"true", "actions":"output=17" } flow2 ={ 'switch':"00:0a:34:40:b5:3c:18:00", "name":"flow-mod-3", "cookie":"0", "priority":"32768", "ingress-port":"19", "ether-type":"2048", "src-ip":”x.x.x.225", "active":"true", "actions":"" } pusher.set(flow1) pusher.set(flow2)

  18. The Value Proposition • What Value do we get from SDN/OpenFlow? • Innovation • Networks will innovate as software does • Freedom to program the behavior of your local network • Do not have to abide by traditional protocols • Customization

  19. Floodlight Administrative Control Panel Marist/IBM Joint Study

  20. FACP • Goal: Address network administration using Floodlight • Reduce Complexity • Eliminate Python Scripting • Allow network behavior to be applied • Provide an abstraction of the network that can be configurable • Build network configuration application against that abstraction

  21. Administrative Concerns How can I program my network? What's involved in programming my network? I’m used to my bag-o-protocols, what now? How can FACP help? What are the plans for FACP?

  22. Future Development • OpenFlow network and device compliance lab • Develop testing compliancy documentation • Tests “stamp of approval” • FACP • Firewall configuration mappings • Routing module (dynamic & static) • QoSmodule for certain traffic • VLAN administration • MPLS?

  23. Questions? • http://openflow.marist.edu • http://openflow.marist.edu/liveview • http://openflow.marist.edu/static/media/files/ECC2012PRES.pptx • http://www.openflowhub.org/ • http://opennetworking.org • http://floodlight.openflowhub.org Marist OpenFlow/SDN DEMOS IN THE HALLWAY

More Related