An Introduction to OpenStack Networking

This is the slide deck I used to discuss OpenStack Networking (formerly Quantum) to the OpenStack Denver meetup in late April 2013.

Transcript

1. Scott Lowe, VCDX Engineering Architect, Virtual Networks Network & Security Business Unit, VMware, Inc. An Introduction to OpenStack Networking 1 Wednesday, April 24, 13
2. Agenda 2 §OpenStack Networking overview §Open vSwitch overview §Nicira NVP overview §Example OpenStack Networking use cases § Logical view § Physical view with Open vSwitch plugin § Physical view with NVP plugin Wednesday, April 24, 13
3. OpenStack Networking overview 3 §Formerly known as “Quantum” but ran into trademark issues §Designed to provide “Network-as-a-Service” functionality §Supplies a consistent API for provisioning network services §Uses a plugin architecture to allow a variety of backend providers §Leverages a number of open source technologies (network namespaces, Linux bridges, Open vSwitch, dnsmasq) Wednesday, April 24, 13
4. OpenStack Networking architecture 4 Wednesday, April 24, 13
5. OpenStack Networking architecture 5 Wednesday, April 24, 13
6. OpenStack Networking plugins 6 §Big Switch Networks §Brocade §Cisco §Hyper-V §Linux Bridge §Meta Plugin §Midokura Midonet §NEC OpenFlow §Nicira NVP §Open vSwitch §PLUMgrid §Ryu OpenFlow Wednesday, April 24, 13
7. Open vSwitch (OVS) overview 7 §An open source, highly programmable virtual switch §Supports OpenFlow, 802.1Q VLANs, LACP, STP §Supports KVM and Xen §OVS serves as the basis for a number of different SDN/network virtualization platforms §Currently the default networking stack for XenServer and Xen Cloud Platform (XCP) §More information available at http://openvswitch.org or http://blog.scottlowe.org/tag/ovs Wednesday, April 24, 13
8. Nicira NVP overview 8 §Scale-out controller architecture with northbound APIs §Leverages OVS across hypervisor platforms § Uses OVSDB API to communicate with the controllers § Receives flow configuration from controllers via OpenFlow §Leverages multiple network encapsulation protocols § Uses STT and GRE for encapsulation § Supports IPSec with STT/GRE for certain use cases §Supplies both L2 (switched) and L3 (routed) gateway services Wednesday, April 24, 13
9. Example OpenStack Networking use cases 9 §Use case #1: Single flat network §Use case #2: Multiple flat networks §Use case #3: Mixed flat and private networks §Use case #4: Provider router with private networks §Use case #5: Per-tenant routers with private networks Wednesday, April 24, 13
10. Use case #1: Single flat network (logical view) 10 Wednesday, April 24, 13
11. Use case #1: Single flat network (physical view) 11 Wednesday, April 24, 13
12. Use case #2: Multiple flat networks (logical view) 12 Wednesday, April 24, 13
13. Use case #2: Multiple flat networks (physical view) 13 Wednesday, April 24, 13
14. Use case #3: Mixed flat and private networks (logical view) 14 Wednesday, April 24, 13
15. Use case #3: Mixed flat and private networks (physical view) 15 Wednesday, April 24, 13
16. Use case #4: Provider router with private networks (logical view) 16 Wednesday, April 24, 13
17. Use case #4: Provider router with private networks (physical view) 17 Wednesday, April 24, 13
18. Use case #5: Per-tenant routers with private networks (logical view) 18 Wednesday, April 24, 13
19. Use case #5: Per-tenant routers with private networks (physical view) 19 Wednesday, April 24, 13
20. Q&A 20 Wednesday, April 24, 13
21. Thank You 21 Wednesday, April 24, 13