Home > Networking Solutions > Enterprise/Data Center Networking Solutions > Enterprise SONiC Networking Solutions > Guides > EVPN-VxLAN based Multisite Data Center Interconnect (DCI) using Dell Enterprise SONiC > Multisite DCI deployment
In this deployment guide, we configure a Multisite DCI test bed. This test bed includes two fabrics, Fabric A and Fabric B which are connected to each other through WAN connection. For simplicity, we considered only single BL switch at each fabric. However, for redundancy having two BL routers connected using MC-LAG is a common practice. In both fabrics, we will first create a typical spine leaf topology, later we will configure Unnumbered BGP. Finally, we will configure virtual network with the DCI configuration.