Home > Networking Solutions > Converged and Hyperconverged Solutions > VxRail Networking Solutions > Guides > Dell EMC Networking SmartFabric Services Deployment with VxRail 4.7 > Add switches to SmartFabric
Caution: Do not connect any new switches in SmartFabric mode to the fabric until the preferred master settings are validated on the existing and new leaf switches. This was covered earlier in the Verify preferred master setting before fabric expansion section of this guide.
In this section, the two spine switches and two leaf switches are added to the SmartFabric. These are Spine1, Spine2, Leaf2A, and Leaf2B, as shown in Figure 65.
Cable the switches as shown in Figure 65. Connection details are shown in Figure 11. Also, make OOB management connections, as shown in Figure 13.
Caution: The following commands delete the existing switch configuration. Switch management settings such as management IP address, management route, hostname, NTP server, and IP name server are retained.
The following commands are run on Spine1 and Spine2. This puts the switches in SmartFabric mode as spines.
OS10# configure terminal
OS10(config)# smartfabric l3fabric enable role SPINE
Reboot to change the personality? [yes/no]:y
The configuration is applied, and the switch reloads. Repeat on the second spine switch.
The following commands are run on Leaf2A and Leaf2B. This puts the switches in SmartFabric mode as leafs and configures them as VLT peers.
Note: This example uses the two QSFP28 2x100Gb DD ports, Ethernet 1/1/49-1/1/52, for the VLTi connections on each leaf.
OS10# configure terminal
OS10(config)# smartfabric l3fabric enable role LEAF vlti ethernet 1/1/49-1/1/52
Reboot to change the personality? [yes/no]:y
The configuration is applied, and the switch reloads. Repeat on the second leaf switch.
(Optional) To verify a leaf or spine switch is in SmartFabric mode, run the following command:
OS10# show switch-operating-mode
Switch-Operating-Mode : Smart Fabric Mode