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Start the fabric deployment when the planning is complete. The fabric deployment consists of:
The starting point is a single leaf pair Figure 3, and then a two-rack setup like in Figure 8.
The single rack consists of Layer 2 uplinks and a single leaf-pair fabric. There is no routing protocol configured in the single rack. All VxRail nodes are connected to a Leaf1A-Leaf1B leaf pair. The other deployment setup is a two-rack setup. The two-rack deployment consists of Layer 3 uplinks and multi pair fabric connected with two spines. The VxRail cluster is stretched across two racks. The routing protocol configured is BGP with EVPN VXLAN protocols for the VXLAN tunnel.
The VLANS, hostnames, and management IP addresses are the same for the single leaf pair setup and the BGP EVPN VXLAN setup. Leaf1A and Leaf1B are used in the single leaf pair setup. Minor changes are needed in going from the L2 uplink example to the L3 uplink example. In both cases, the setups have access to the external network for DNS and NTP services for the VxRail cluster.
Note: In this section, instruction for leaf/spine switches are in table format.
The main reference topology for this deployment consists of:
The fabric is built using BGP EVPN VXLAN to stretch the necessary discovery VLAN (3939) and VxRail infrastructure VLANs (ext-Management 1811, vSAN 1812, vMotion 1813) and workload VMs (1814).