This document discusses different network topologies and configurations for OpenStack including flat mode, VLAN mode, private cloud access, CloudPipe, multi-host networking, and limitations of the multi-host approach. It also provides information on multi-NIC networking capabilities and limitations as well as background on Mirantis as an engineering company focused on OpenStack development and enterprise deployments.

2. Network Topologies Flat mode VLAN mode VLAN 1 VLAN 2 10.1.0.0/24 12.1.0.0/24 10.2.0.0/24

3. Private Cloud Access 10.0.0.3 12.1.1.1 10.0.0.4

4. CloudPipe 10.0.0.3 12.1.1.1 SPoF 10.0.0.4

5. CloudPipe Redundancy 10.0.0.3 12.1.1.1 10.0.0.4

6. CloudPipe Self-healing 10.0.0.3 12.1.1.1 10.0.0.4 Monitoring

7. public switch Floating IP 12.0.1.3 VM bridge bridge Project VLAN nova-network Networking in Cactus nova-compute

8. Networking in Cactus public switch Floating IP 12.0.1.3 VM bridge bridge Project VLAN nova-network nova-compute

9. Multi-host in Diablo public switch Floating IP 12.0.1.3 12.0.1.4 VM VM bridge bridge Project VLAN nova-network nova-network nova-compute nova-compute

10. Limitations of Multi-host Multi-host doesn’t work with XEN No way from one project to another Security groups don’t work with XEN

11. Multi NIC Features: Multiple interfaces in VM Automatically associated with all networks in the project Limitations: No way to change association of interface with network

12. About Mirantis Engineering services company Development of OpenStack Enterprise deployments of OpenStack Host of Bay Area OpenStackMeetUps Speaker: Mike ScherbakovTwitter: @mihgen mscherbakov @ mirantis.com