Design and Architecture of a Software Defined Proximity Cloud 133
VPN software to connect each compute node to the Proximity Cloud
controller on the logical management plane network. Figure 3.3 illus-
trates these concepts. The figure shows two compute nodes in two dif-
ferent zones, each running VMs for two different tenants. All the VMs
of one tenant are connected via one virtual network, while the VMs of
the other tenant are connected to another virtual network. Not shown
in Figure 3.3, but present in each compute node is another VPN con-
nection to a management plane network, which connects all compute
nodes to the Proximity Cloud controller via a management gateway
router. Figure 3.3 also shows the two tenant gateway routers, which
may be located