Software Defined Networking. Matthew Davy, Indiana University September 8th, 2011

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1 Software Defined Networking Matthew Davy, Indiana University September 8th, 2011

2 Outline Drivers for Software Defined Networking SDN/OpenFlow Architecture OpenFlow Basics Example Use Cases NDDI SDN and Universities

3 Drivers for SDN

4 Drivers for SDN

5 Drivers for SDN Massively Large Data Centers

6 Drivers for SDN Massively Large Data Centers Yahoo (Igor Interop)

7 Drivers for SDN Massively Large Data Centers Yahoo (Igor Interop) Phase 1 of New Data Center

8 Drivers for SDN Massively Large Data Centers Yahoo (Igor Interop) Phase 1 of New Data Center 120,000 servers - 2.4M VMs

9 Drivers for SDN Massively Large Data Centers Yahoo (Igor Interop) Phase 1 of New Data Center 120,000 servers - 2.4M VMs Estimate 3,000 to 6,000 Ethernet switches

10 Scaling Challenges

11 Scaling Challenges Scaling Network Management

12 Scaling Challenges Scaling Network Management VM Mobility (L2 Scaling)

13 Scaling Challenges Scaling Network Management VM Mobility (L2 Scaling) Bandwidth Scaling (East-West Traffic)

14 Scaling Challenges Scaling Network Management VM Mobility (L2 Scaling) Bandwidth Scaling (East-West Traffic) Control-Plane Scaling (Flood-Learn)

15 Flexibility Challenges

16 Flexibility Challenges Computer/Storage Highly Flexible and Programmable

17 Flexibility Challenges Computer/Storage Highly Flexible and Programmable Rich, Open APIs for Provisioning

18 Flexibility Challenges Computer/Storage Highly Flexible and Programmable Rich, Open APIs for Provisioning Network Configured through Legacy, Proprietary Mechanisms

19 Flexibility Challenges Computer/Storage Highly Flexible and Programmable Rich, Open APIs for Provisioning Network Configured through Legacy, Proprietary Mechanisms Inability to Customize Service Offering

20 Similar Problem Space

21 Similar Problem Space Some Similarities to Wi-Fi Scaling Problem

22 Similar Problem Space Some Similarities to Wi-Fi Scaling Problem Controller-Based WiFi Solutions

23 Similar Problem Space Some Similarities to Wi-Fi Scaling Problem Controller-Based WiFi Solutions Single Point of Management

24 Similar Problem Space Some Similarities to Wi-Fi Scaling Problem Controller-Based WiFi Solutions Single Point of Management Single Control-Plane

25 Similar Problem Space Some Similarities to Wi-Fi Scaling Problem Controller-Based WiFi Solutions Single Point of Management Single Control-Plane Network Virtualization

26 Cost Pressures

27 Cost Pressures 3K-6K Switches in 1 Phase of 1 DC

28 Cost Pressures 3K-6K Switches in 1 Phase of 1 DC TOR Switch Costs

29 Cost Pressures 3K-6K Switches in 1 Phase of 1 DC TOR Switch Costs Traditional Vendor: $8K-$15K

30 Cost Pressures 3K-6K Switches in 1 Phase of 1 DC TOR Switch Costs Traditional Vendor: $8K-$15K Budget Vendor: $4K-$6K

31 Cost Pressures 3K-6K Switches in 1 Phase of 1 DC TOR Switch Costs Traditional Vendor: $8K-$15K Budget Vendor: $4K-$6K White Label Vendor: $2K

32 Cost Pressures 3K-6K Switches in 1 Phase of 1 DC TOR Switch Costs Traditional Vendor: $8K-$15K Budget Vendor: $4K-$6K White Label Vendor: $2K googles-secret-10gbe-switch/

33 Pillars of SDN

34 Pillars of SDN p=582

35 Pillars of SDN p=582 Single Point of Management

36 Pillars of SDN p=582 Single Point of Management Single Image L2/L3 Control Plane

37 Pillars of SDN p=582 Single Point of Management Single Image L2/L3 Control Plane Network-wide Virtualization

38 Pillars of SDN p=582 Single Point of Management Single Image L2/L3 Control Plane Network-wide Virtualization Multi-Path

39 Pillars of SDN p=582 Single Point of Management Single Image L2/L3 Control Plane Network-wide Virtualization Multi-Path Programmability (my addition)

40 SDN/OpenFlow Architecture

41 App App App App Operating System Packet-Forwarding Hardware App App App App Operating System Packet-Forwarding Hardware App App App App App App App App Operating System Packet-Forwarding Hardware Operating System Packet-Forwarding Hardware

42 Network Operating System App App App App Operating System Packet-Forwarding Hardware App App App App Operating System Packet-Forwarding Hardware App App App App App App App App Operating System Packet-Forwarding Hardware Operating System Packet-Forwarding Hardware

43 Network Operating Operating System System App App App App App App App App Packet-Forwarding Hardware Packet-Forwarding Hardware App App App App App App App App Packet-Forwarding Hardware Packet-Forwarding Hardware

44 App App App App Network Operating Operating System System Packet-Forwarding Hardware Packet-Forwarding Hardware Packet-Forwarding Hardware Packet-Forwarding Hardware

45 App App App App Network Operating System Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware

46 App App App App Network Operating System Openflow Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware

47 App App App App Published API Network Operating System Openflow Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware

48 Computer Industry Apps Apps Apps Windows Windows Windows Windows Windows Linux Windows Windows FreeBSD Virtualization x86

49 Computer Industry Apps Apps Apps Windows Windows Windows Windows Windows Linux Windows Windows FreeBSD Virtualization x86

50 Computer Industry Network Industry Apps Apps Apps Apps Apps Apps Windows Windows Windows Windows Windows Linux Windows Windows FreeBSD Network Windows Windows OS Windows Windows NOX Windows Windows Beacon Virtualization Virtualization x86 Openflow

51 Origins

52 Origins Stanford Clean Slate Project

53 Origins Stanford Clean Slate Project Network Researchers Looking for Ways to Run Experiments at Scale

54 Origins Stanford Clean Slate Project Network Researchers Looking for Ways to Run Experiments at Scale PC-based Switches

55 Origins Stanford Clean Slate Project Network Researchers Looking for Ways to Run Experiments at Scale PC-based Switches Custom Hardware

56 Origins Stanford Clean Slate Project Network Researchers Looking for Ways to Run Experiments at Scale PC-based Switches Custom Hardware Manipulate Forwarding Tables in Existing Switches from Software on a PC!

57 Current Status

58 Current Status Switches Available from HP, NEC, Pronto.

59 Current Status Switches Available from HP, NEC, Pronto. Many Other Switch Vendors w/prototypes

60 Current Status Switches Available from HP, NEC, Pronto. Many Other Switch Vendors w/prototypes 4+ Open-Source Controllers, 1 Commercial Controller Available. Others in Development

61 Current Status Switches Available from HP, NEC, Pronto. Many Other Switch Vendors w/prototypes 4+ Open-Source Controllers, 1 Commercial Controller Available. Others in Development IU, Internet2, NLR and 6 Other Campuses have OpenFlow Deployments

62 Trend

63 Trend Strong SDN Interest in Commercial Sector

64 Trend Strong SDN Interest in Commercial Sector Open Networking Foundation Created

65 Trend Strong SDN Interest in Commercial Sector Open Networking Foundation Created Board: Deutche Telekom, Facebook, Google, Microsoft, Verizon, Yahoo

66 Trend Strong SDN Interest in Commercial Sector Open Networking Foundation Created Board: Deutche Telekom, Facebook, Google, Microsoft, Verizon, Yahoo Members: Broadcom, Brocade, Ciena, Cisco, Citrix, Dell, Ericsson, Force10, HP, IBM, Juniper, Marvell, NEC, Netgear, NTT, Riverbed, VMware

67 We re not using (OpenFlow) yet in production, but we re spending a lot of time experimenting with it and we plan to implement it - Urs Hoelzle, Senior VP of Engineering at Google SDN would give network operators the ability to virtualize network resources, being able to dynamically improve latency or security on demand - Paul McNab, VP and CTO of Cisco Switching and Services Group

68 Potential Impacts

69 Potential Impacts Open Access to Innovate at Network Core

70 Potential Impacts Open Access to Innovate at Network Core Decreased Innovation Cycle from Lab to Production

71 Potential Impacts Open Access to Innovate at Network Core Decreased Innovation Cycle from Lab to Production Return to Early Days of Networking When Researchers Had Direct, Near-Term Impact on Network

72 Potential Impacts Open Access to Innovate at Network Core Decreased Innovation Cycle from Lab to Production Return to Early Days of Networking When Researchers Had Direct, Near-Term Impact on Network Cost Reduction From Commodity HW & Open-Source SW

73 OpenFlow Basics

74 App App App App Published API Network Operating System Openflow Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware Openflow Firmware Packet-Forwarding Hardware

75 !"#$%&'(1234*, A:"&'*+1+-#1B'(1+3C&#1*$14(*+,-#4D1/'9+#/4D13$<1,-*"4#+41 %&'(16.1 %&'(1E.1 %&'(1F.1 89&#1 5#:3,+1;1(*&<,3/<71 89&#1 5#:3,+1;1(*&<,3/<71 89&#1 5#:3,+1;1(*&<,3/<71 =,>'$1 )+3>4>,41 =,>'$1 )+3>4>,41 =,>'$1 )+3>4>,41 %&'(1G.1 89&#1 )+3>4>,41!"#$%&'()(*+,-.'/01

76 !"#$%&'(1234*, &#1 5#:3,+1;1(*&<,3/<71 =,>'$1 )+3>4>,41 #.0.1I'/+C1JK=L1MNC1K6C1KOC1KPC1Q11 F:"*/3>'$1>?#T,'9$+1 #.0.19$*,34+C1?,34+C1?3"D+'DE9#9#C1</'"1 F:+#$<#<1G*31G*/+93&1"'/+41 #.0.1+9$$#&4C1#$,3"49&3+#C1#$,/H"+11!"#$%&'()(*+,-.'/01

77 !"#$%&'(1:39*,91;<=1 OpenFlow Switch specification 9(1 OpenFlow Switch )#,5/#1 6-3$$#&1!"#$%&'(1 7/'+','&1 ))81 Controller 761 -(1 %&'(1 234&#1 1B$,3"95&3+#?1"3,C#+91 16'$+/'&&#/1?*9,'D#/E1!"#$%&'()(*+,-.'/01

78 Example Use Cases

79 Possible Uses

80 Possible Uses VM Mobility

81 Possible Uses VM Mobility Redirect Specific Application Traffic to a Remote Server

82 Possible Uses VM Mobility Redirect Specific Application Traffic to a Remote Server Ethernet VLAN Provisioning

83 Possible Uses VM Mobility Redirect Specific Application Traffic to a Remote Server Ethernet VLAN Provisioning Ethernet VLAN provisioning currently done through SNMP Writes/Scripted SSH

84 Possible Uses VM Mobility Redirect Specific Application Traffic to a Remote Server Ethernet VLAN Provisioning Ethernet VLAN provisioning currently done through SNMP Writes/Scripted SSH Vendor Specific

85 Security Uses

86 Security Uses 1k-3k TCAM Entries in Typical IDF Switch

87 Security Uses 1k-3k TCAM Entries in Typical IDF Switch Difficult to Take Advantage Of:

88 Security Uses 1k-3k TCAM Entries in Typical IDF Switch Difficult to Take Advantage Of: Manual Config, SNMP Writes, RADIUS

89 Security Uses 1k-3k TCAM Entries in Typical IDF Switch Difficult to Take Advantage Of: Manual Config, SNMP Writes, RADIUS Limited Actions (Allow/Deny)

90 Security Uses 1k-3k TCAM Entries in Typical IDF Switch Difficult to Take Advantage Of: Manual Config, SNMP Writes, RADIUS Limited Actions (Allow/Deny) Vendor Specific

91 Security Uses 1k-3k TCAM Entries in Typical IDF Switch Difficult to Take Advantage Of: Manual Config, SNMP Writes, RADIUS Limited Actions (Allow/Deny) Vendor Specific What if I could program w/standard API?

92 Security Uses

93 Security Uses NAC

94 Security Uses NAC Inject Policies into IDF Switches

95 Security Uses NAC Inject Policies into IDF Switches Remote Packet Capture & Injection

96 Security Uses NAC Inject Policies into IDF Switches Remote Packet Capture & Injection Data Analysis Network

97 Security Uses NAC Inject Policies into IDF Switches Remote Packet Capture & Injection Data Analysis Network Stripe Traffic Across IDS Sensors

98 NDDI

99 What is NDDI? Network Development & Deployment Initiative Internet2, IU, and Clean Slate Program at Stanford University Mission: Create a new network platform and complementary software, which together will support global scientific research in a revolutionary new way

100 Motivation

101 Motivation AOAC Charged Internet2 with Developing Layer-2 Service

102 Motivation AOAC Charged Internet2 with Developing Layer-2 Service Access via very inexpensive 10GbE ports

103 Motivation AOAC Charged Internet2 with Developing Layer-2 Service Access via very inexpensive 10GbE ports Built on very dense, inexpensive, throwaway switches

104 Motivation AOAC Charged Internet2 with Developing Layer-2 Service Access via very inexpensive 10GbE ports Built on very dense, inexpensive, throwaway switches OpenFlow support should be investigated

105 Motivation AOAC Charged Internet2 with Developing Layer-2 Service Access via very inexpensive 10GbE ports Built on very dense, inexpensive, throwaway switches OpenFlow support should be investigated Priority queuing & scavenger - but most traffic best-effort

106 Motivation

107 Motivation GENI Project - SDN/OpenFlow Key Enabler

108 Motivation GENI Project - SDN/OpenFlow Key Enabler Commercial SDN/OpenFlow Market Developing

109 Motivation GENI Project - SDN/OpenFlow Key Enabler Commercial SDN/OpenFlow Market Developing Internet2 Seven Focus Areas Advanced Network Leadership Research Community Development and Engagement Industry Partnership Development and Engagement

110 Goals

111 Goals Instantiate NDDI Substrate, an advanced Software Defined network, and OS³E, an advanced network service

112 Goals Instantiate NDDI Substrate, an advanced Software Defined network, and OS³E, an advanced network service Lead R&E Community in Development of atscale, production Software Defined Networks

113 Goals Instantiate NDDI Substrate, an advanced Software Defined network, and OS³E, an advanced network service Lead R&E Community in Development of atscale, production Software Defined Networks Extend Reach of NDDI and OS³E Globally Through Strategic Collaborative Engagement

114 Goals

115 Goals Build OS³E user base centered on data intensive researchers who utilize the services of OS³E

116 Goals Build OS³E user base centered on data intensive researchers who utilize the services of OS³E Engage network research community in NDDI as place to pursue at-scale network research

117 Goals Build OS³E user base centered on data intensive researchers who utilize the services of OS³E Engage network research community in NDDI as place to pursue at-scale network research Engage commercial community in definition of SDN and impact the development of commercial SDN products

118 Goals Build OS³E user base centered on data intensive researchers who utilize the services of OS³E Engage network research community in NDDI as place to pursue at-scale network research Engage commercial community in definition of SDN and impact the development of commercial SDN products Create foundation for open-source project through which R&E community can develop SDN-based services

119 Goals Accomplished By:

120 Goals Accomplished By: Deploying/Operating Set of Low-Cost switches at Locations Around Country Controlled Through Open-Source OpenFlow Software Developed by NDDI

121 Goals Accomplished By: Deploying/Operating Set of Low-Cost switches at Locations Around Country Controlled Through Open-Source OpenFlow Software Developed by NDDI Building L2 Service that Meets Needs of Domain Science and Humanities Researcher Communities

122 Goals Accomplished By: Deploying/Operating Set of Low-Cost switches at Locations Around Country Controlled Through Open-Source OpenFlow Software Developed by NDDI Building L2 Service that Meets Needs of Domain Science and Humanities Researcher Communities Precipitating Complementary Activity Globally to Extend Reach of NDDI and OS³E Internationally

123 TimeLine

124 TimeLine April 20th: Announcement at Spring Member Meeting

125 TimeLine April 20th: Announcement at Spring Member Meeting May: Project Organization, Community Engagement, Defining Requirements (controller & switches)

126 TimeLine April 20th: Announcement at Spring Member Meeting May: Project Organization, Community Engagement, Defining Requirements (controller & switches) June: Vendor Engagement, SW Dev. Plan, Controller/Switch Evaluation

127 TimeLine April 20th: Announcement at Spring Member Meeting May: Project Organization, Community Engagement, Defining Requirements (controller & switches) June: Vendor Engagement, SW Dev. Plan, Controller/Switch Evaluation July: Close to Announcing Controller/Switch Selection, SW Dev. Beginning

128 Timeline

129 Timeline Internet2 Fall Member Meeting

130 Timeline Internet2 Fall Member Meeting Prototype Deployment/Demo. of NDDI and OS³E

131 Timeline Internet2 Fall Member Meeting Prototype Deployment/Demo. of NDDI and OS³E ION Enhanced to Support Permanent Reservations

132 Timeline Internet2 Fall Member Meeting Prototype Deployment/Demo. of NDDI and OS³E ION Enhanced to Support Permanent Reservations End of 2011

133 Timeline Internet2 Fall Member Meeting Prototype Deployment/Demo. of NDDI and OS³E ION Enhanced to Support Permanent Reservations End of 2011 Early Adopters and Testers

134 Timeline Internet2 Fall Member Meeting Prototype Deployment/Demo. of NDDI and OS³E ION Enhanced to Support Permanent Reservations End of 2011 Early Adopters and Testers First Release of NDDI/OS³E Open-Source Software

135 SDN Benefits for Universities

136 SDN/Universities

137 SDN/Universities Universities run large, complex networks

138 SDN/Universities Universities run large, complex networks Facing many difficult challenges

139 SDN/Universities Universities run large, complex networks Facing many difficult challenges wireless scaling

140 SDN/Universities Universities run large, complex networks Facing many difficult challenges wireless scaling security

141 SDN/Universities Universities run large, complex networks Facing many difficult challenges wireless scaling security virtualization

142 SDN/Universities Universities run large, complex networks Facing many difficult challenges wireless scaling security virtualization Often Build Home-Grown Network Management Tools

143 SDN/Universities

144 SDN/Universities Universities also have a research and education mission

145 SDN/Universities Universities also have a research and education mission Researchers looking for relevant networking problems to research

146 SDN/Universities Universities also have a research and education mission Researchers looking for relevant networking problems to research Students looking for hands-on network experience that is well-connected to their studies

147 SDN/Universities Universities also have a research and education mission Researchers looking for relevant networking problems to research Students looking for hands-on network experience that is well-connected to their studies Talented network engineers

148 SDN/Universities

149 SDN/Universities OpenFlow/SDN Presents Opportunity to Bring Groups Together To:

150 SDN/Universities OpenFlow/SDN Presents Opportunity to Bring Groups Together To: Improve the production university networks

151 SDN/Universities OpenFlow/SDN Presents Opportunity to Bring Groups Together To: Improve the production university networks Provide stronger, more relevant education to our students

152 SDN/Universities OpenFlow/SDN Presents Opportunity to Bring Groups Together To: Improve the production university networks Provide stronger, more relevant education to our students Drive Network Innovation

153 How?

154 How? You can do that today with features X, Y & Z configured through SNMP, NetConf, etc

155 How? You can do that today with features X, Y & Z configured through SNMP, NetConf, etc How is OpenFlow/SDN Different?

156 How? You can do that today with features X, Y & Z configured through SNMP, NetConf, etc How is OpenFlow/SDN Different? API to directly control forwarding tables

157 How? You can do that today with features X, Y & Z configured through SNMP, NetConf, etc How is OpenFlow/SDN Different? API to directly control forwarding tables Multi-Vendor Interoperabilty

158 How? You can do that today with features X, Y & Z configured through SNMP, NetConf, etc How is OpenFlow/SDN Different? API to directly control forwarding tables Multi-Vendor Interoperabilty Controller-Based

159 Summary Solve challenging network management problems Provide training opportunity for students...increasing talent pool for network engineers and researchers Encourage environment for innovation

160 InCNTRE Indiana Center for Network Translational Research and Education incntre.iu.edu SDN Lab Education (Internship/Training) Network Research Partnerships

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