Software Defined Networking Is it really the future of networking? And are the big switch vendors finished? 0
Data Centers – a network crunch More Traffic Complexity More Dollars Less Latency Infiniband Fiber Channel More Servers Ethernet 1
Network Switching • Traditional networks: - Decentralised switches with data plane and control plane on same device • Is OpenFlow the saviour? • Centralised managed controller - OpenFlow data plane switches • Potential to … - Automate configuration - Improve network efficiency - Reduce TCO 2
Data Centre Switch Market • $6+ billion equipment market • Vendors have been consolidating • 2010: Top three vendors had 82% of the port shipments 3
Beyond the Data Centre: SP Networks • Service Provider routers and switches: $13 billion equipment market • Top four have 85% of the market value • What’s the future for Software Defined Networking? • Does OpenFlow have enough momentum? • Will proprietary boxes continue to rule? 4
Network headaches • Static/inflexible • Error-prone • Homogeneous/closed • Point Band-Aids • Unvirtualized • 10/100Gbps • Labour-intensive • Hyperscale DCs, IPv6 Ugh: plumbing! 5
Network business value Source: Gartner 6
Transition to SDN/OpenFlow Feature Feature Network OS Feature Feature Feature Feature Feature Feature Feature Feature OS Feature Feature Feature Feature Feature Feature Feature Feature Custom Hardware OS Feature Feature Feature Feature Feature Feature Feature Feature Custom Hardware OS Feature Feature Feature Feature Feature Feature Feature Feature Custom Hardware OS Custom Hardware Feature Feature Feature Feature Feature Feature Feature Feature OS Custom Hardware 7
Simple solution • Separation of control/forwarding planes • Features provided by ordinary software Feature Feature Network OS Feature Control Program Open interface to packet forwarding Packet Forwarding Packet Forwarding Packet Forwarding Packet Forwarding Packet Forwarding 8
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