Fabric Wizard Overview

Aruba Central On-Premises allows you to create an overlay fabric by configuring VXLAN tunnels between Stub and Edge Switches and configure overlay segments for the existing overlay fabrics.

Prerequisites

Before provisioning the overlay fabric using Aruba Central On-Premises, ensure that the following prerequisites are completed:

• All Aruba CX switches should be on firmware version 10.10.1020 and above.

• All Switches must be on-boarded on Aruba Central On-Premises and added to the same UI User Interface. group.

• All the required Aruba devices are on-boarded and connected to Aruba Central On-Premises.

• The underlay network must be set up before attempting to add any overlay to the network.

• At least two loopback (loopback 0 and loopback 1) interfaces are configured on all devices of the overlay fabric.

• The IP addresses of the loopback interfaces are unique on each device of the overlay fabric except on the VSX pair (VSX pair has at least one loopback interface whose IP address is the same on both primary and secondary).

• At least one instance of OSPF Open Shortest Path First. OSPF is a link-state routing protocol for IP networks. It uses a link-state routing algorithm and falls into the group of interior routing protocols that operates within a single Autonomous System (AS). or BGP Border Gateway Protocol. BGP is a routing protocol for exchanging data and information between different host gateways or autonomous systems on the Internet. should be configured on all devices of the overlay fabric.

• OSPF or BGP router ID should be the IP address of an existing loopback interface.

• OSPF or BGP is configured on at least two loopback interfaces (one is used for OSPF and BGP, and the other for the VXLAN source IP).

• If the device has VSX configuration, the following validations must be performed:

  • The VSX pair has at least one loopback interface with the same IP address (used as VXLAN source IP).

  • Virtual MAC Media Access Control. A MAC address is a unique identifier assigned to network interfaces for communications on a network. is configured on the device.

  • Virtual MAC is used for VSX configuration.

  • Keep alive is configured.

  • ISL link—LAG Link Aggregation Group . A LAG combines a number of physical ports together to make a single high-bandwidth data path. LAGs can connect two switches to provide a higher-bandwidth connection to a public network. interface with member ports is configured.

  • The Virtual MAC should be assigned to the Primary and Secondary switches of the VSX Pair. Virtual MAC is auto-generated and pushed to stand alone devices and VSF conductors only.

For more information on overlay fabric and overlay segment see the following topics:

• Overlay Fabric Overview

• Overlay Segment Overview