decreaseNetworkConsumerPriority allows the priority to be decreased based on the number of hops a consumer is from the target. The base priority is always -5. It is not possible to configure one bridge to have lower priority than another and this would be nice in the case of lan/wan traffic. Giving priority to the lan by setting a low priority base for the wan networkConnector.
Adding a new networkConnector consumerPriorityBase attribute with default -5 will resolve this. Set it to any value lower than -5 and enable decreaseNetworkConsumerPriority to give all consumers on that network lower priority.