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*$14(*+,-#4D1/'9+#/4D13$<1,-*"4#+41 %&'(16.1 %&'(1E.1 %&'(1F.1 89 5#:3,+1;1(*&<,3/<71 89 5#:3,+1;1(*&<,3/<71 89 5#:3,+1;1(*&<,3/<71 =,>'$1 )+3>4>,41 =,>'$1 )+3>4>,41 =,>'$1 )+3>4>,41 %&'(1G.1 89 )+3>4>,41!"#$%&'()(*+,-.'/01
76 !"#$%&'(1234*,  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!"#$%&'(1 7/'+','&1 ))81 Controller 761 -(1 %&'(1 234 1B$,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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