Networks in NDFC is where you define the Layer-2 (L2) VNIs associated to VLANs for the Layer-2 segments or bridge domains over the routed fabric. L2VNIs enforce segmentation by not allowing Layer-2 traffic to traverse the VNI boundary. Again, if inter-VNI/VXLAN routing is needed, this is where the L3VNI/VRF is required. If required, a Switched Virtual Interface (SVI) or VLAN Interface, called an Anycast Gateway as the same gateway exists on all leafs where required, is configured and associated to a L3VNI VRF. If you do not have any need to route between L2VNIs, then the L2VNI can be Layer-2 only. For this lab, you will define two networks for inter-VXLAN routing, thus they will be associated to the L3VNI VRF you created in the previous section.

Step 1 - Launch Create Networks Wizard to Create First Network

From VRFs, navigate to Networks:

1. Click Networks in the top navigation bar
2. Click Actions
3. Click Create

Step 2 - Populate Create Network Wizard with First Network

In the Create Network wizard, populate the parameters to build the network configuration for your first network:

1. Set the Network Name to BlueNet1
2. If you were making this network Layer-2 only, then you would check the Layer-2 Only checkbox. Leave it unchecked for this lab.
3. Leave VRF Name set to BlueVRF
4. Leave the Network ID set to 30000 (this is the first VNI pulled from the L2VNI pool)
5. Click Propose VLAN for NDFC to pull a VLAN from the VLAN pool that was created when you created the fabric
6. Leave the Network templates set to defaults
7. In General Parameters, set the IPv4 Gateway/NetMask to 192.168.11.1/24
8. In General Parameters, set the Vlan Name to BlueNet1
9. In General Parameters, set the Interface Description to BlueNet1
10. Click Create

Step 3 - Launch Create Networks Wizard Again to Create Second Network

Repeat the steps above to create a second Network (L2VNI) under Networks:

1. Click Actions
2. Click Create

Step 4 - Populate Create Network Wizard with Second Network

In the Create Network wizard, populate the parameters to build the network configuration for your second network:

1. Set the Network Name to BlueNet2
2. If you were making this network Layer-2 only, then you would check the Layer-2 Only checkbox. Leave it unchecked for this lab.
3. Leave VRF Name set to BlueVRF
4. Leave the Network ID set to 30001 (this is the second VNI pulled from the L2VNI pool)
5. Click Propose VLAN for NDFC to pull a VLAN from the VLAN pool that was created when you created the fabric
6. Leave the Network templates set to defaults
7. In General Parameters, set the IPv4 Gateway/NetMask to 192.168.12.1/24
8. In General Parameters, set the Vlan Name to BlueNet2
9. In General Parameters, set the Interface Description to BlueNet2
10. Click Create

Step 5 - Confirm Networks are Created

Confirm the two Networks are created. The current status should display as NA as the Networks are not attached and deployed to a leaf switch yet.

1. Single Click BlueNet1

Step 6 - View Current Network Attachments

1. Double Click BlueNet1

Continue to the next section to attach your Networks and subsequently attach your VRF automatically to your Site1-L1 and Site1-L2 switches.