Link Usage Profile Properties dialog box

Use this dialog box to specify exceptions to the default link selection options.

Option Definition
General tab
Name The name of the element.
Default SD-WAN Link Balancing Preference Specifies how the traffic is balanced over the links. You can use the slider to set the link balancing preference to determine which of the following is favored more:
  • Equal Balancing: When slider position is set to the left-most position, the traffic is initially equally distributed among the links. But Over time as the Engine gathers information about the behavior of the links, the traffic balancing changes between the links.
  • Best link: The best available link is selected to transfer traffic. The best link is determined by considering the following link selection values:
    • Bandwidth
    • Jitter
    • Latency
    • Packet drop rate
    • Link stability

    Also, the slider positions moving towards Best Link determine how strongly the link selection values are considered.

Note:
  1. By default, the slider is set to the left-most position (Equal Balancing).
  2. You can only specify the Default SD-WAN Link Balancing Preference option and save the element to use it.
  3. The default link balancing preference can only be set per Engine. You must select this link usage profile in Engine properties to enable it. For more details refer to the Engine Editor > Routing > Link Usage section.
  4. The Default SD-WAN Link Balancing Preference option is not applicable for link usage profiles with Route Based VPN tunnel group, Policy Based VPN, and VPN Broker.
Link Usage Exceptions Exceptions that override the default link selection options in QoS Class elements.
Link Type The Link Type element for which to create an exception.
Prefer

Specifies the types of traffic that use the link unless a connection with significantly higher quality is available.

You can add QoS Class elements to this cell.

Avoid

Specifies the types of traffic that use the link only if necessary.

You can add QoS Class elements to this cell.

Do Not Use

Specifies the types of traffic that must not use the link.

You can add QoS Class elements to this cell.

Add Link Type Adds a row to the table. Click Add Link Type, and then select a link type to add it to the table.
Remove Link Type Removes the selected row from the table.
Category

(Optional)

Includes the element in predefined categories. Click Select to select a category.
Comment

(Optional)

A comment for your own reference.
Multi-Link Packet Duplication tab
Apply Multi-Link Packet Duplication for QoS classes
Displays the list of QoS classes that are used for packet duplication:
  • Click Add, and then select a QoS class to add it to the list.
  • Select a QoS class in the list, and then click Remove to remove the QoS Class from the list.
Do not duplicate on Link Types
Displays the list of link types that must not be used for packet duplication:
  • Click Add, and then select a link type to add it to the list.
  • Select a link type in the list, and then click Remove to remove the link type from the list.