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Network in OpenStack: changes since Cactus and CloudPipe HA

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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.

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Network in OpenStack: changes since Cactus and CloudPipe HA
Network TopologiesFlat modeVLAN modeVLAN 1VLAN 210.1.0.0/2412.1.0.0/2410.2.0.0/24
Private Cloud Access10.0.0.312.1.1.110.0.0.4
CloudPipe10.0.0.312.1.1.1SPoF10.0.0.4
CloudPipe Redundancy10.0.0.312.1.1.110.0.0.4
CloudPipe Self-healing10.0.0.312.1.1.110.0.0.4Monitoring
public switchFloating IP12.0.1.3VMbridgebridgeProject VLANnova-networkNetworking in Cactusnova-compute
Networking in Cactuspublic switchFloating IP12.0.1.3VMbridgebridgeProject VLANnova-networknova-compute
Multi-host in Diablopublic switchFloating IP12.0.1.312.0.1.4VMVMbridgebridgeProject VLANnova-networknova-networknova-computenova-compute
Limitations of Multi-hostMulti-host doesn’t work with XENNo way from one project to anotherSecurity groups don’t work with XEN
Multi NICFeatures:Multiple interfaces in VMAutomatically associated with all networks in the projectLimitations:No way to change association of interface with network
About MirantisEngineering services companyDevelopment of OpenStackEnterprise deployments of OpenStackHost of Bay Area OpenStackMeetUpsSpeaker: Mike ScherbakovTwitter: @mihgenmscherbakov @ mirantis.com

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Network in OpenStack: changes since Cactus and CloudPipe HA