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The Internet impasse
Openﬂow
Future

.
.
OpenFlow
.
.. .

.
Emmanouil Dimogerontakis @{Scalable Distributed Systems}

FIB UPC

April 17, 2012

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Problem
Openﬂow
Solution
Future

.
. . The Internet impasse
1
Problem
Solution

.
. . Openﬂow
2
An overview
Protocol

.
. . Future
3

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Problem
Openﬂow
Solution
Future

. Problem

The Internet’s very success is now creating obstacles to innovation
in the networking technology that lies at its core and the services
that use it. 1

SOLUTION ?

1
http://www.arl.wustl.edu/netv/main.html . . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Problem
Openﬂow
Solution
Future

. Network Virtualization

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Problem
Openﬂow
Solution
Future

. Vision

Software Defined Networking

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Problem
Openﬂow
Solution
Future

. Vision

Software Defined Networking

BUT.. where do we start?

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

.
. . The Internet impasse
1
Problem
Solution

.
. . Openﬂow
2
An overview
Protocol

.
. . Future
3

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. Openﬂow

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. Motivation and Goals

Motivation: Goals:
Commercial Maintain vendors’
solutions too close platforms
closed High-performance,
Research low-cost
solutions: implementations
insuﬃcient
Broad range of
performance
fanout research
too expensive Isolate
experimental from
production traﬃc

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. Main Idea

Goal?
Program the ﬂow table in diﬀerent switches and routers.

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. Main Idea

Goal?
Program the ﬂow table in diﬀerent switches and routers.
How?
Exploit a common set of ﬂow-table functions that runs in many
switches and routers.

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. The OpenFlow switch
Dedicated OpenFlow OpenFlow-enabled
switches: switches:

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. Implementations

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
An overview
Openﬂow
Protocol
Future

. Examples

Experiment with custom protocols
Network Management and Access Control
VLAN deployment
Handle Non-IP networks
Process on packet level

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Openﬂow
Future

.
. . The Internet impasse
1
Problem
Solution

.
. . Openﬂow
2
An overview
Protocol

.
. . Future
3

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Openﬂow
Future

. What’s more?

. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

The Internet impasse
Openﬂow
Future

. Bibliography & Useful Links

N. McKeown, T. Anderson, H. Balakrishnan, G. Parulkar, L.
Peterson, J. Rexford, S. Shenker, and J. Turner, OpenFlow:
enabling innovation in campus networks, ACM SIGCOMM
Computer Communication Review, 38(2):6974, 2008.
OpenFlow Protocol speciﬁcation, http://www.openflow.
org/documents/openflow-spec-v1.1.0.pdf.
NOX Controller, http://noxrepo.org.
OpenVSwitch, http://openvswitch.org.
Open Networking Foundation, www.opennetworking.org.
Murphy McCauley, What Is SDN All About, Then?,
http://www.noxrepo.org/2012/03/sdn/.
. . . . . .

Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

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Openflow

1. The Internet impasse Openﬂow Future . . OpenFlow . .. . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} FIB UPC April 17, 2012 . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

2. The Internet impasse Problem Openﬂow Solution Future . . . The Internet impasse 1 Problem Solution . . . Openﬂow 2 An overview Protocol . . . Future 3 . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

3. The Internet impasse Problem Openﬂow Solution Future . Problem The Internet’s very success is now creating obstacles to innovation in the networking technology that lies at its core and the services that use it. 1 SOLUTION ? 1 http://www.arl.wustl.edu/netv/main.html . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

4. The Internet impasse Problem Openﬂow Solution Future . Network Virtualization . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

5. The Internet impasse Problem Openﬂow Solution Future . Vision Software Defined Networking . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

6. The Internet impasse Problem Openﬂow Solution Future . Vision Software Defined Networking . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

7. The Internet impasse Problem Openﬂow Solution Future . Vision Software Defined Networking BUT.. where do we start? . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

8. The Internet impasse An overview Openﬂow Protocol Future . . . The Internet impasse 1 Problem Solution . . . Openﬂow 2 An overview Protocol . . . Future 3 . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

9. The Internet impasse An overview Openﬂow Protocol Future . Openﬂow . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

10. The Internet impasse An overview Openflow Protocol Future . Motivation and Goals Motivation: Goals: Commercial Maintain vendors’ solutions too close platforms closed High-performance, Research low-cost solutions: implementations insufficient Broad range of performance fanout research too expensive Isolate experimental from production traffic . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

11. The Internet impasse An overview Openflow Protocol Future . Main Idea Goal? Program the flow table in different switches and routers. . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

12. The Internet impasse An overview Openflow Protocol Future . Main Idea Goal? Program the flow table in different switches and routers. How? Exploit a common set of flow-table functions that runs in many switches and routers. . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

13. The Internet impasse An overview Openflow Protocol Future . Main Idea Goal? Program the flow table in different switches and routers. How? Exploit a common set of flow-table functions that runs in many switches and routers. Practically? Separate data path and control path in switches. In other words, leave fast packet forwarding to be done efficiently in the switches and take charge of the high level routing decisions. . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

14. The Internet impasse An overview Openﬂow Protocol Future . The OpenFlow switch Dedicated OpenFlow OpenFlow-enabled switches: switches: . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

15. The Internet impasse An overview Openﬂow Protocol Future . Implementations . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

16. The Internet impasse An overview Openﬂow Protocol Future . Examples Experiment with custom protocols Network Management and Access Control VLAN deployment Handle Non-IP networks Process on packet level . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

17. The Internet impasse Openﬂow Future . . . The Internet impasse 1 Problem Solution . . . Openﬂow 2 An overview Protocol . . . Future 3 . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

18. The Internet impasse Openﬂow Future . What’s more? . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

19. The Internet impasse Openﬂow Future . What’s more? . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

20. The Internet impasse Openﬂow Future . Bibliography & Useful Links N. McKeown, T. Anderson, H. Balakrishnan, G. Parulkar, L. Peterson, J. Rexford, S. Shenker, and J. Turner, OpenFlow: enabling innovation in campus networks, ACM SIGCOMM Computer Communication Review, 38(2):6974, 2008. OpenFlow Protocol speciﬁcation, http://www.openflow. org/documents/openflow-spec-v1.1.0.pdf. NOX Controller, http://noxrepo.org. OpenVSwitch, http://openvswitch.org. Open Networking Foundation, www.opennetworking.org. Murphy McCauley, What Is SDN All About, Then?, http://www.noxrepo.org/2012/03/sdn/. . . . . . . Emmanouil Dimogerontakis @{Scalable Distributed Systems} OpenFlow

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