
Figure 39. Downlink Configuration for Layer 3 Distributed Core Fabric
To configure the downlinks for a Layer 3 distributed core fabric:
1. Navigate to the Network >
Fabric Name
> Configure and Deploy screen.
2. From the Deploy Fabric pull-down menu, select the Pre-deployment Configuration option.
3. Navigate to the Downlink Configuration screen.
4. To have the leaves act as a ToR, select the Specify Leaf as ToR option.
5. Manually configure the downlinks, or to automatically generate the downlink configuration, check the Generate
Downlink Configuration option.
6. In the Start IP Address Range/Prefix field, enter the starting IP address and prefix.
Enter a valid IP address and a prefix from 8 to 23.
7. In the Number of ports per port channel, enter the number of ports assigned to a port channel for a particular VLAN
ID.
Range: from 1 to 16.
8. In the Starting VLAN ID field, enter a starting VLAN ID.
Range: from 2 and 4094.
9. From the Protocol Profile pull-down menu, when the leaves are acting as a leaf switch (the switches are directly
connected to the server), select the Downlink VLAN and VRRP and LAG protocol setting. The default setting is
Downlink VLAN.
10. Click Next to go the Assign Switch Identities screen.
Protocol Configuration — Layer 3 with Resiliency (Routed VLT) : Step 1
To configure the pre-deployment protocol configuration for a Layer 3 with Resiliency (Routed VLT) , complete the
following tasks:
NOTE: The Layer 2 VLT, Layer 3 Distributed Core, and Layer 3 with Resiliency (Routed VLT) fabrics use the same
pre-deployment configuration screens from step 2 through step 7. Before you begin, review the pre-deployment
workflow at Using the Pre-deployment Configuration Wizard.
1. Pre-deployment – Step 1a: Fabric Link Configuration
2. Pre-deployment – Step 1b: Uplink Configuration
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