Setting Up a Layer 2 Segment

Layer 2 segments supports use cases where the default gateway of the segment is external to the fabric. Example of such use-cases includes, IoT Internet of Things. IoT refers to the internetworking of devices that are embedded with electronics, software, sensors, and network connectivity features allowing data exchange over the Internet. devices connecting to gateway or fabric traffic that terminats at the firewall Firewall is a network security system used for preventing unauthorized access to or from a private network..

The following workflow describes the steps for configuring Layer 2 segments:

  1. Step 1: Configure the Layer 2 Segment
  2. Step 2: Assign Roles
  3. Step 3: Select Edge and Stub Devices for the Layer 2 Segment
  4. Step 4: View the Layer 2 Segment summary

Step 1: Configure the Layer 2 Segment

To configure an overlay segment for the AOS-CX Switch, complete the following steps:

  1. In the Aruba Central app, complete the following steps:
    • To select a group in the filter:
      1. Set the filter to a group.

        The dashboard context for the group is displayed.

      2. Under Manage, click Devices > Switches.
      3. To view the AOS-CX Switch configuration dashboard, click the AOS-CX or Config icon.
  2. Click Routing > Fabrics.
    In the Fabrics table, select the Fabric Fabric is a group of AOS-CX Switches that are part of the BGP-EVPN VXLAN overlay. The overlay fabric is created by configuring VXLAN tunnels between stub and edge Switches. This is in context to Aruba Central NetConductor. on which you want to enable Layer-2 segment and click the icon.

  3. Enable the Layer 2 Segment toggle.

  1. In the Overlay Network & VLAN Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. table, populate the Overlay network and VLAN table with the relevant information.
    The following table describes the Layer 2 segment parameters.

Table 1: Overlay Network & VLAN Table Parameter




Option to provide the VLAN name.


The VLAN ID number.

  1. Click Next. The Roles section is displayed with a list of all the global roles defined on the Client Roles page.

Step 2: Assign Roles

This section describes the steps to assign roles to endpoints or users that are part of the Layer 2 segment.

  1. Select the roles for assigning the Layer 2 overlay network segment.

  2. Click Next. The Devices section is displayed.

Step 3: Select Edge and Stub Devices for the Layer 2 Segment

In the Devices section, select the devices to apply on the segment.

  1. Select individual devices or select all the devices and assign them to the overlay fabric.

  2. Click Next. The Summary section is displayed.

Step 4: View the Layer 2 Segment summary

  1. The Summary section is displayed where you can view the summary of your configuration.

  2. Click Save to complete the configuration.