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Mark McClain - OpenStack Quantum Networking
OpenStack Networking addresses challenges of cloud networking like scaling VLANs and automating provisioning. It uses network virtualization with overlays and SDN. OpenStack Networking provides a generic API for virtual networks and plugins for different backends. It allows creation of virtual networks, ports, and attachment of VMs. Future versions will improve security, load balancing, and add new plugins and features while the community works on initiatives like modular L2/L3 and testing.
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Mark McClain - OpenStack Quantum Networking
- 1. OpenStack Networking Mark McClain OpenStackNetworking Project Technical Lead mark.mcclain@dreamhost.com
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- 3. Challenges in theCloud • High-density multi-tenancy –ButVLANs have trouble scaling • On-demand provisioning –But traditional network solutions have interfaces designed for manual configuration. • Need to place / move workloads were capacity exists –But network state (e.g., IP address) is tied to a particular location © Malcolm Leman | Dreamstime.com
- 4. Tackling these challenges –Networkvirtualization –Overlay tunneling: VXLAN, NVGRE, STT –Software-defined Networking (SDN) / OpenFlow –L2 Fabric solutions: FabricPath, Qfabric, etc. –???
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- 6. Basic Abstractions Net1 10.0.0.0/24 Nova Quantum L2 virtualnetwork virtual port virtual server virtual interface (VIF) virtual subnet VM1VM1 10.0.0.210.0.0.2 VM2VM2 10.0.0.210.0.0.2
- 7. Using the API... VM1VM1 10.0.0.210.0.0.2 VM1VM1 10.0.0.210.0.0.2 VM2VM2 10.0.0.2/172.16.77.210.0.0.2/172.16.77.2 VM2VM2 10.0.0.2/172.16.77.210.0.0.2/172.16.77.2 VM3VM3 172.16.77.1172.16.77.1 VM3VM3 172.16.77.1172.16.77.1 TenantNet1 192.168.0.0/24 Tenant Net2 172.16.77.0/24 Public Net 10.0.0.0/8 RouterRouterRouterRouter
- 8. Architecture A generic tenantAPI to create and configure “virtual networks” A “plugin” architecture with different back-end “engines” An eco-system of tools that leverage the Network API. Tenant Tools (GUI, CLI, API code) Compute APICompute APICompute APICompute API Network APINetwork APINetwork APINetwork API Storage APIStorage APIStorage APIStorage API Generic OpenStack APIs Operator Selected Backends KVMKVMKVMKVM OVS pluginOVS pluginOVS pluginOVS plugin CephCephCephCeph
- 9. Quantum Architecture Tenant Scripts HorizonGUI Orchestration Code Quantum API Create-net . . . Create-port Uniform API for all clients API Extensions Plugin X Nova Compute virtual switch Physical Network Quantum Server BackendsAPI Client
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- 11. Metadata • Simplified Configuration •Supports Overlapping IPs Non-routed networks
- 12. Security Groups • SupportsOverlapping IPs • HandlesVMs with multiple NICs • Ingress / Egress rules • IPv6 matching • Plugins can offload http://www.flickr.com/photos/mikebaird/2354116406/
- 13. Load Balancing • LoadBalancing API Model • Pluggable Framework • Reference Implementation with HAProxy
- 14. New Plugins •Big Switch/Floodlight •Brocade •Hyper-V •Midokura •PlumGrid
- 15. Quantum Plugins Open vSwitch/ Linux Bridge Ryu OpenFlow Controller
- 16. Grizzly Horizon •Manage Routers •Graphicalview of network topology •Specifying multiple NICs when booting aVM •Load Balancer Control
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- 18. Grizzly Horizon •Select NICswhen booting
- 19. Other Features • MultipleNetwork Node Support • XML API • Seamless Upgrade from Folsom to Grizzly
- 20. What will bein Havana?
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- 22. • Improved IPv6support • Improved Bare Metal Support • Updated Client Library • MoreVendor Plugins
- 23. Community Initiatives • ModularL2 and L3 • Database profiling • Improving Testing • Exploring Nova-Net Migration Paths
- 24. More Information • Installationand Admin Manual •http://docs.openstack.org/trunk/openstack -network/admin/content/
- 25. Questions? Mark McClain OpenStack NetworkingCore Developer and PTL mark.mcclain@dreamhost.com