The SDN Revolution: Empowering the People. Dan Pitt, Executive Director Open Networking Foundation

Transcription

1 The SDN Revolution: Empowering the People Dan Pitt, Executive Director Open Networking Foundation

2 Why SDN? Service Provider Mobile growth New-service velocity Cost over revenue Public or Private Cloud Network flexibility Tenant virtual control Web 2.0 Hyperscale datacenters, server utilization Virtualization for 7x24 Big Data Cost-performance of Infiniband, TCP/IP for high-density clusters Until: Software-Defined Networking Layers of abstraction Open, programmatic Interfaces OpenFlow Application-driven direct network control (dream come true) 2

3 Remember mainframes? Specialized Applications Specialized Operating System Specialized Hardware App App App App App App App App App App App Windows Open Interface Linux (OS) or or Open Interface Mac OS Microprocessor Vertically integrated Closed, proprietary Slow innovation Small industry 3 Horizontal Open interfaces Rapid innovation Huge industry

4 That s what today s routers are Routing, management, mobility management, access control, VPNs, OS Million of lines of source code 6,000 RFCs Custom Hardware Billions of gates Bloated Power Hungry Vertically integrated, complex, closed, proprietary Networking industry with mainframe mind-set 4

5 What SDN really is App App App App App App App App App App App Specialized s Specialized Control Plane Specialized Hardware Control Plane Open Interface or Control Plane or Open Interface Merchant Switching Chips Control Plane Vertically integrated Closed, proprietary Slow innovation 5 Horizontal Open interfaces Rapid innovation

6 Generational Shift in Networking From: Custom ASICs/FPGAs Hardware/Applianc es Distributed control plane Protocols To: Merchant silicon (Open) software (Logically) centralized control plane APIs 6

7 How it happens Network OS OS Custom Hardware OS Custom Hardware OS Custom Hardware OS Custom Hardware OS Custom Hardware 7

8 Separation of control, forwarding planes 1. Consistent, well-defined global view Ctl. Program Network OS 2. Routing, security, policy, QoS, traffic engineering, business objectives 3. Open interface to packet forwarding Flow Table Packet Forwarding If header = x, send to port 4 If header = y, overwrite header with z, send to ports 5,6 If header =?, send to me Packet Forwarding Packet Forwarding Packet Forwarding Packet Forwarding 8

9 OpenFlow History OpenFlow PhDs; OpenFlow ; industry enters; Research frustration / CleanSlate; ONF launche d; 03/2011 OF 1.2: IPv6, extensible expressio n; 12/2011 OF-Config 1.0, 1.1: basic configuratio n; 01-04/2012 OF 1.3.0: flexible table miss, per flow meters; 04/2012 OF-Test 1.0 interoperability test processes; 3Q2012 9

10 ONF: why we exist Students I d like to program the network like I program everything else Faculty I d like to do networking research at scale (post-ip) Users I d like a standards organization that serves my needs Vision: Make SDN New Norm for Networks Mission: Foster a vibrant market for SDN products, technologies, services Operation: User-driven 10

11 7 Board companies, 72 total Urs Hölzle (Sr. VP, Engineering, Google), chairman Najam Ahmad (Director, Network Engineering, Facebook) Adam Bechtel (VP, Infrastructure Group, Yahoo) Stuart Elby (VP, Network Architecture, Verizon) Axel Clauberg (VP, IP & Optical, Deutsche Telekom) Yukio Ito (Sr. VP, Services & Infrastructure, NTT Communications Clyde Rodriguez (GM, Windows Azure Networking, Microsoft) Nick McKeown (Professor, EE and CS, Stanford) Scott Shenker (Professor, EECS, UC Berkeley and ICSI) Governance No vendors on Board Only Board appoints working-group chairs Standardize as little as necessary We re a Silicon Valley startup 11

12 7 Board companies, 72 total Urs Hölzle (Sr. VP, Engineering, Google), chairman Najam Ahmad (Director, Network Engineering, Facebook) Adam Bechtel (VP, Infrastructure Group, Yahoo) Stuart Elby (VP, Network Architecture, Verizon) Axel Clauberg (VP, IP & Optical, Deutsche Telekom) Yukio Ito (Sr. VP, Services & Infrastructure, NTT Communications Clyde Rodriguez (GM, Windows Azure Networking, Microsoft) Nick McKeown (Professor, EE and CS, Stanford) Scott Shenker (Professor, EECS, UC Berkeley and ICSI) A10 Networks ADVA Optical Alcatel-Lucent Aricent Argela/Turk Telekom Big Switch Networks Broadcom Brocade Ciena Cisco Citrix Colt CompTIA Cyan Optics Dell/Force10 Elbrys Ericsson ETRI Extreme Networks EZchip F5 Networks Freescale Semi Fujitsu Gigamon Goldman Sachs Hitachi HP Huawei IBM Infinera Infoblox Intel IP Infusion Ixia Juniper Networks Korea Telecom LineRate Systems LSI Luxoft Marvell Mellanox Metaswitch Networks Midokura NCL Comms K.K. NEC Netgear Netronome Nicira Networks Nokia Siemens Netw. NoviFlow Oracle Orange/France Telecom Pica8 Plexxi Inc. Radware Riverbed Technology Samsung SK Telecom Spirent Telecom Italia Tencent Texas Instruments Vello Systems VMware ZTE 12

13 Technical activities Chartered Working Groups Architecture & framework: scope, requirements, functional elements, interfaces Extensibility: OpenFlow protocol Configuration-management: basic switch configuration Testing-interoperability: conformance, interoperability, benchmarking Hybrid: mixed OpenFlow/legacy switches & networks Discussion Groups OpenFlow-Future: forwarding-plane models NorthboundAPI: how the network relates to the applications NewTransport: OpenFlow for optical, circuits, wireless Market Education: marketing, customer value 13

14 SDN/OpenFlow success stories Google 100% OpenFlow global inter-data center WAN; centralized routing, TE, BW allocation 95% network utilization(!); simpler configuration, management, provisioning Hitless upgrades, faster failure handling, faster TTM, elastic compute Genesis Hosting (Chicago) Multi-tenant virtual networking; seamless interoperability with legacy network 50% less administration, 60% more IP address efficiency, % availability NTT Communications Enterprise cloud service, network virtualization within & between data centers IaaS offering precise control of compute, network; virtual firewall, load balancer 14

15 Broader implications Networking: integrated part of computing, programmers rule Enterprise IT: strategic business value, in-house or cloud Operators: become software, mgmt. companies (or else) GenY: networking software startups (apps!) People: the network belongs to you 15