On Nov 6, 2012, at 4:10 AM, Daniel Oliveira <[email protected]> wrote:
> Hello. > > I once had some problems with Openstack regarding network configuration, so I > thought I needed to have a better understanding on the configuration > possibilities. I'm no expert, though, and even after reading this link, I > couldn't fully understand the difference between the parameters > public_interface, flat_interface and vlan_interface. Could someone help me > understand? public_interface == the interface where floating (natted) ips will be created. In flatdhcp mode flat_interface is a physical interface that will get added in to br100 along with all the vm interfaces (see http://wiki.openstack.org/UnderstandingFlatNetworking) In vlan mode, you specify vlan_interface instead of flat_interface. In this case a separate is created on the interface for each tenant in the system. Vms for each tenant are bridged into their own vlan. Vish
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