VXLAN
When VXLAN networks are created, the Neutron Linux bridge agent creates a corresponding VXLAN interface using iproute2 user-space utilities and connects it to a Linux bridge. The VXLAN interface is programmed with information such as the VNI and local VTEP address.
When the L2 population driver is configured, Neutron prepopulates the forwarding database with static entries consisting of the MAC addresses of instances and their respective host VTEP addresses. As a packet from an instance traverses the bridge, the host determines how to forward the packet by consulting the forwarding table. If an entry is found, Neutron will forward the packet out of the corresponding local interface and encapsulate the traffic accordingly. To view the ...
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