# Dynamic link selection for Multi-Link traffic

Some traffic is affected more easily by changes in the quality of the connection. Forcepoint Network Security Platform in the Engine/VPN role can dynamically select the ISP link that best matches the quality requirements of traffic.

Dynamic link selection has the following benefits:

- Using the connection that best matches the quality requirements of the traffic maximizes the performance of the applications that use the connection.
- Specifying which connection types are preferred, avoided, or not used allows you to use more expensive standby connections only when necessary.

  For example, when all connections are working normally, you can configure business-critical traffic to use one link and all other traffic to use another link.

Dynamic link selection is supported on Security Engines, Master Engines, and Virtual Security Engines in the Engine/VPN role role.

Dynamic link selection is only supported for layer 3 physical interfaces.