Limiting the total upstream bandwidth without traffic shapping

[strike101]

Is there anyway to limit the total WAN upstream ?  I got a 10mb down / 1 mb up connection

already setup a 3mb / 300kbps limit per ip on my network… but when several users are uploading stuff , the overall connection speed is affected

so is there anyway to limit or at least set the max upload speed to 90% ( 10% reserve )

Thanks

[stephenw10]

So why not use traffic shaping?

Steve