Hi, We are trying to figure out how to transition from a network model using nova-network and a single VLAN to a model using Neutron and multiple VXLAN tunnels.
The main issue is not how to configure and setup the tunnels, but how to expose the new virtual machines born inside the tunnels to our "legacy", non-VXLAN, non-Openstack networks, i.e. DNS serrvers, databases, hardware load balancers, monitoring/metrics servers, etc. We are trying to avoid assigning a floating IP to every instance, and also avoid the SPoF and bottlenecks of Network Nodes. What are the alternatives? (Hardware switches supporting VXLAN and acting as gateways?) Thanks in advance.
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