Users Guide

To configure links connecting the leaves and spines for a Layer 3 distributed core fabric or links
connecting the core, access, and aggregation switches for a Layer 3 with Resiliency (Routed VLT) fabric
using the OSPF routing protocol, use the Fabric link Configuration screen. The selected fabric type and
fabric oversubscription ratio determines the value that AFM automatically assigns to the Port Bandwidth
read-only field . To automate the pre-deployment process, AFM automatically:
• populates the starting IP address range and prefix
• populate the loop IP address and prefix based on the fabric design
• sets the area ID for OSPF to 0
Review these settings before deployment. You can modify the IP address range and loopback address.
The range for the starting prefix for both types of addresses is 8–29 and the range for the loopback prefix
is 8–26.
NOTE: The area ID for the interconnect link must not be the same as the area ID for the uplink.
1. Navigate to the Network > Fabric Name > Configure and Deploy screen.
2. From the Deploy Fabric pull-down menu, select Pre-Deployment Configuration.
The Introduction screen displays.
3. Review the Introduction screen and gather the useful information for deployment.
4. Click Next.
The Fabric Link Configuration screen displays.
5. In the Start IP Address Range/Prefix area, enter the starting IP address and prefix.
The prefix range is 8–29.
6. In the Loopback IP Address Range/Prefix area, enter the loopback address range and prefix.
The prefix range is 8–26.
7. In the Area ID field, use the default setting (zero) or enter the area ID.
The area ID range is 0–65535. The uplinks or interlinks must be in area 0 for OSPF.
L3 DC/Routed VLT Pre-deployment – Uplink Configuration
The Uplink Configuration screen for a Layer 3 and Layer 3 with Resiliency (Routed VLT) fabric displays
the port bandwidth and the number of specified ports as read-only fields on the Bandwidth and Port
Count screen. To configure the uplink protocol for the EdgePort uplinks to the WAN, use the Uplink
Configuration screen. For more information about uplinks for a Layer 3 distributed core fabric, refer to
Distributed Core Terminology.
NOTE: When OSPF is selected for both uplinks and interlinks, one of uplinks or interlinks must be in
area 0.
1. Navigate to the Network > Fabric Name > Configure and Deploy screen.
2. From the Deploy Fabric drop-down menu, select Pre-deployment Configuration .
3. Navigate to the Uplink Configuration screen.
4. In the Type of Uplink Ports area, select one of the following options:
• Static routes — When you select the static routes option, AFM displays the Add Static Route
window.
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Configuring and Deploying the Fabric