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OpenStack 2012 fall summit observation - Quantum/SDN

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OpenStack 2012 fall summit observation - Quantum/SDN

  1. 1. OpenStack 2012 Fall Summit Observation - Quantum/SDN Danny Liu Dec 5, 2012 1
  2. 2. Agenda• Keynote• Quantum• Quantum Plugins• OpenStack Quantum Use cases• SDN and what we do for it 2
  3. 3. Keynote speech -- Troy Toman, Rackspace – Rackspace contribution percentages have been steadily declining, from 54% of commits in Essex to 30% in Folsom – Continuous delivery by running trunk in production – Deploying every few weeks in less than an hour – Private cloud (Alamo) which runs on OpenStack: 120 million API hits, 99.97% availability 3
  4. 4. OpenStack Folsom• What is the big feeling in Folsom Summit – OpenStack is in production• Two of the most noteworthy new features in the OpenStack Folsom release are Quantum and Cinder• Quantum – The interest around network virtualization and the Quantum project was overwhelming and very gratifying – Not just about L2 virtual network, also about network services ( load balancing, firewall…) and SDN 4
  5. 5. Quantum Design Session• Learn about what the design session processes• The main subject in this design session – IPv6, DHCP, VPN access – Modeling the insertion of services – LBaaS, firewall – Metering – Quantum L3 and adv APIs improvements 5
  6. 6. What is Quantum• To provide "network connectivity as a service" between interface devices (e.g., vNICs) managed by other Openstack services ( L2 ) – Quote: Provides a “building block” for sophisticated cloud network topologies. @Dan Wendlandt• The functionality of Quantum – Tenant-facing APIs – Rich network topologies – Allow to plugin different virtualization technologies 6
  7. 7. Quantum Evolution• Essex (L2 Support) – network segments – ports• Folsom (L2 + L3 Support, to replace Nova Network ) – IP subnets – DHCP – Routing• Grizzly (more L3, L4-L7) – Firewalling, Load balancers, and more 7
  8. 8. Quantum Architecture Generic OpenStack APIs Operator Selected Backends Compute API KVM Network API OVS plugin Tenant Tools (GUI, CLI, Storage API Ceph API code)An eco-system of tools A generic tenant API to A “plugin” architecture withthat leverage the create and configure different back-end “engines”Quantum API. “virtual networks” 8
  9. 9. Quantum ArchitectureAPI Clients Quantum Service Backend X Quantum API Tenant Create-net Scripts . Horizon . Plugin GUI Create- XOrchestration port Physical virtual switch Code Network API Nova Compute Extension s 9
  10. 10. Basic API Abstractions• “virtual networks” and “virtual subnets” are fundamentally multi-tenant, just like virtual servers (e.g., overlapping IPs can be used on different networks). VM1 VM2 virtual serverNova virtual interface (VIF) virtual portQuantum Net1 L2 virtual network virtual subnet 10
  11. 11. Dynamic Network Creation + Association• Tenant can use API to create many networks.• Can even plug-in “instances” that provide more advanced network functionality (e.g., routing + NAT) TenantA-VM1 TenantA-VM2 TenantA-VM3 Tenant-A Net1 Tenant-A Net2 External Net 11
  12. 12. Quantum API Extensions• Enables innovation in virtual networking.• Add properties on top of existing network/port abstractions: – QoS/SLA guarantees / limits – Security Filter Policies – port statistics / netflow• New Services – L3 forwarding, ACLs + NAT (“elastic” or “floating” IPs) – VPN connectivity between cloud and customer site, or another cloud datacenter. 12
  13. 13. Available Quantum Plugins – Open vSwitch • L2 isolation with VLAN or GRE Tunneling – Cisco UCS/Nexus • L2 isolation with VLAN and UCS products – Linux Bridge • Pure Linux solution with Linux bridge, L2 isolation with VLAN – NTT-Data Ryu • L2 isolation with OpenFlow – Nicira NVP Many of them • Proprietary solution ( also with OpenFlow ) are related with – NEC OpenFlow OpenFlow/SDN • L2 isolation with OpenFlow – Big Switch • L2 isolation with OpenFlow – MidoNet • Proprietary solution with OVS for L2 to L4 – Juniper 13
  14. 14. Quantum Project Update• Folsom release: – v2 API, with L2 + IP address mgmt (IPAM) – Tenant API with Keystone + Horizon Integration – Updated CLI – Extensions: • L3 “routers” and floating IPs • “provider networks” mapped to specific VLANs • Tenant quotas • Notifications 14
  15. 15. Use Case in Quantum/Nova Network• Rackspace – Quantum NVP Plugin• Intel – Nova Network Now – move to Quantum with Grizzly• DreamHost – Nicira NVP Plugin – Switch OEM by Delta Networks• Cisco Webex – Quantum UCS Plugin• eBay – Nicira NVP Plugin• Sina – Nova Network Now – move to Quantum with Grizzly 15
  16. 16. What is SDN• SDN separates the control plane from the data plane in network switches and routers.• Most well known in the SDN world is OpenFlow – an open protocol designed to expose the internals of a router or switch and provide functionality to modify it. ( OpenFlow != SDN ) 16
  17. 17. What do we do in Quantum/SDN• We use OpenStack + Quantum with Plugin ( OVS ) in overlay model: – Provide L2 isolation + Virtual Networks + L3 routing• We focus on OpenFlow in hop by hop model: – Leverage Open Source Project  Trema, ZeroMQ… – Provide flow management and traffic engineering – In Hop by Hop model – Provide Northbound API 17
  18. 18. Our SDN Framework Concept SDN Applications / Orchestration Http / Restful Northbound API zmq ZeroMQ Monitoring ECMP / Traffic Re-routing EngineeringTrema Apps Flow Topology Routing Manager Discovery Switch We are implementing Trema Framework OpenFlow Protocol 18
  19. 19. My point of view and conclusion• Networking can blend into the computing world with software abstractions ( APIs )• Quantum opens a door for networking vendors to plugin their SDN solution• Expect to see Grizzly version of OpenStack/Quantum 19
  20. 20. Reference Sources• OpenStack Folsom Summit – http://www.openstack.org/summit/san-diego-2012/• Quantum Project Update – http://www.slideshare.net/danwent/quantum-grizzly-summit• SDN is bussniess, OpenFlow is technology – http://www.networkcomputing.com/next-gen-network-tech- center/sdn-is-business-openflow-is-technology/240142193?pgno=1• Mirantis : OpenStack Super bootcamp material – http://www.slideshare.net/openstack/openstack-super-bootcamppdf• Quantum Plugin Comparison – http://www.sebastien-han.fr/blog/2012/09/28/quantum-plugin- comparison/ 20
  21. 21. Q&A Thank youliu.danny@inventec.com
  22. 22. The comparison of Nova-network and Quantum• http://www.sebastien-han.fr/blog/2012/09/25/from-nova-network-to-quantum/ 22