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Overlay-based network virtualization has been getting attention to realize multi-tenant datacenters. But the multi-tenant property makes broadcast/multicast communications on virtual networks difficult. In this paper, we propose TE-Cast (Topology Embedded xCast) that supports generic broadcast/multicast communications on virtual networks. Unlike existing similar methods, TE-Cast can reduce traffic...
Network virtualization is an essential technology for cloud datacenters that provide multi-tenancy services. Cutting-edge SDN-enabled datacenters have introduced an edge-overlay (distributed tunneling) model to construct virtual tenant networks. The edge-overlay model generally uses L2-in-L3 tunneling protocols, and VXLAN is a representative of such protocols. However, the tunneling-based edge-overlay...
In current SDN paradigm, an edge-overlay (distributed tunneling) model using L2-in-L3 tunneling protocols, such as VXLAN, has attracted attentions for multi-tenant data center networks. The edge-overlay model can establish rapid-deployment of virtual networks onto existing traditional network facilities, ensure flexible IP/MAC address allocation to VMs, and extend the number of virtual networks regardless...
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