Configuring WAN Circuits

  • Published on May 23, 2025
  • 3 minute(s) read
  • KD
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What is a WAN Circuit?

A WAN circuit represents the ISP circuit(s) the Edge uses to connect to the WAN for management, control and data plane connectivity.  This WAN circuit specifies all the attributes of the ISP connection such as upload bandwidth, download bandwidth, carrier, etc.  Every WAN circuit must be attached to an interface (the port into which the ISP circuit is plugged in).  The Graphiant Edge supports using Ethernet, as well as Subinterfaces, for attaching WAN circuits.

When a Graphiant Edge onboards it comes up with a default WAN circuit associated to the onboarding interface.  The default WAN circuit has no attributes populated but can be configured by the user once the device is connected to the Portal.  If the Edge has multiple ISP connections, it will require multiple WAN circuits.  You can create the additional WAN circuits via the Portal as described below.

WAN Circuits in the Graphiant Portal

Step 1: Locating WAN Circuits in the Graphiant Portal

From the Home screen, navigate to the Edge Configuration screen by one of the following:

• Locate the "Configurations" section within the top left of the screen;  select 'Configure Edges'.

or

• Click 'Configure' in the sidebar;  select 'Edge Devices'.

This will take you to the ‘Configuration’ page of the Graphiant Portal where you can view all active, staged, and deactivated Edges. From here you will be able to select among the active Edges which Edge(s) you would like to configure.

On the right hand side, select and click ‘Configure’ in tandem with the Edge you wish to manage.

This will take you onto a Configuration page focusing on the Edge you have just chosen.

Here you will see a list of headers along the left hand side of the page, such as ‘Configure Network’, ‘Configure Services’, ‘Configure Policies’, etc.

From here, select and click ‘Configure Network’ and from the dropdown menu, select and click ‘WAN Circuits’.

On the 'WAN Circuits' page, you will see the list of all existing WAN circuits and the ability to edit them and create new circuits.

Step 2: Configuring WAN Circuits in the Graphiant Portal

Step 2a: Adding a new WAN Circuit

On the 'WAN Circuit' page click 'Add WAN Circuit' to create a new WAN circuit.

Step 2b: Configuring a WAN Circuit

A WAN circuit supports the following configurations:

  • Name:  User defined name to use for the circuit.  When this name is changed, all other configuration and monitoring views are updated to use the new name.

  • Description: User defined description to assign to this circuit

  • Download Bandwidth:  Download bandwidth supported by this circuit.  This bandwidth is used to identify if a circuit is running near capacity.

  • Upload Bandwidth: Upload bandwidth supported by this circuit.  This bandwidth is used to identify if a circuit is running near capacity. Configuring the upload bandwidth also applies a shaper to the associated interface.  This prevents the Edge from sending more traffic on the circuit than the circuit can support.

  • Carrier: The ISP carrier that provides the circuit;  this is an informational attribute and doesn't have any functional impact.

  • DIA: toggle to disable/enable Direct Internet Access on this circuit.  The value defaults to off.  To enable DIA switch the toggle to on and then configure a traffic policy to match traffic that should use DIA.

  • QoS Profiles: The QoS profile to apply to traffic using this WAN circuit to send traffic to the Graphiant Stateless Core.

 

Step 2c: Deleting a WAN Circuit

WAN circuits don't need to be explicitly deleted;  A WAN circuit is automatically deleted if it is detached from an interface.

Navigate to the 'Interfaces' page.

Select the interface that is attached to the WAN circuit you want to delete and click Edit Interface.

Change the Interface Type from WAN to ‘LAN’.

Once you review and apply the changes, as described in Step 3 below, the WAN circuit will be deleted.

Step 3: Review & Apply

Once the above fields are filled in, the selected WAN circuit(s) will be ready to use, however you will first need to review and approve all changes made.

In the top righthand corner, choose from the following options:

• ‘Discard’ to discard changes made.

• ‘Save as Draft’ to save changes made to be implemented at a later time.

• ‘Review’ to review and apply changes made for immediate deployment.

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