After you Define a Traffic Management Action in v11.8.x and Lower, you can add it to policy definitions. You can also add any existing traffic management actions to policy definitions.
You can also set connection rate limits for a policy on the Advanced tab. For more information, see Set Connection Rate Limits.
If you have a multi-WAN configuration, bandwidth limits are applied separately to each interface.
When the same traffic management action is added to multiple policies, the maximum and minimum bandwidth apply to each interface in your configuration. If two policies share an action that has a maximum bandwidth of 100 kbps on a single interface, then all traffic on that interface that matches those policies is limited to 100 kbps total.
If you have limited bandwidth on an interface used for several applications, each with unique ports, you might need all the high priority connections to share one traffic management action. If you have lots of bandwidth to spare, you could create separate traffic management actions for each application.
Define a Traffic Management Action in v11.8.x and Lower
About Traffic Management and QoS