Service Bus for Windows Server 1.1 high-availability : need a load-balancer ?

Hi,

I need to create a Service Bus for Windows Server 1.1 farm (with 3 servers according the requirements).

I understand that, thanks to Windows Fabric, the Service Bus Gateway is able to load-balance the requests to the available Service Bus Message Broker (which can reside on the same machine or remotely in another server of the farm).

But, may I need to have a Load-Balancer in front of the 3 Service Bus Gateways for REST/TCP requests to load-balance the requests to one of the 3 gateway in the farm? Or is it managed like Microsoft NLB : the requests is received by each gateways and managed by only the intended one?

Thanks.