Setting Up Virtual Links

Create and apply the aggregate bandwidth cap.

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Virtual link (Vlink) is a feature that allows "virtual" bandwidth caps. Transfer sessions assigned to the same "virtual" link conform to the aggregate bandwidth cap and attain an equal share of it. This section first shows you how to set up Vlinks, then explains how to apply it to computers or users.

Follow these steps to configure Vlinks:

  1. Create Vlinks

    To configure Vlinks, launch the application ( Macintosh HD > Applications > Aspera Enterprise Server ) and click Configuration. Select Vlinks tab in the left panel.

    Click Add Vlink to add a new Vlink entry, assign a number between 1 and 255.

    Add a Vlink

    Here is a list of all Vlink configuration options:

    # Field Description Values Default
    1 Vlink Name The Vlink name. This value has no impact on actual bandwidth capping. text string blank
    2 On Select true to activate this Vlink; select false to deactivate it.
    • true
    • false
    		 false
    3 Capacity (kbps) This value reflects the virtual bandwidth cap in Kbps. When applying this Vlink to a transfer (e.g. Default outgoing), the transfer's bandwidth will be restricted by this value. positive integer in Kbps 50000
  2. Apply a Vlink to a transfer

    You can assign a Vlink to a global, a user, or a group settings. This example assigns a Vlink to a user's incoming transfer session.

    Bring up the Configuration window and select the Users tab, select the user to apply Vlink. In the right panel, select the Bandwidth tab, check the option Incoming Vlink ID and select the Vlink to apply (choose ID from drop-down list):

    Assign a Vlink to a user

IMPORTANT NOTE: If you have a local firewall on your server (Windows firewall, Linux iptables or Mac ipfw), then you will need to allow the Vlink UDP port (55001, by default) for multicast traffic.