I have many separate offices connected to my access switch and I am providing their internet access. These customers do not need to "see" each other. How do I aggregate them into one pw out to the internet? I know that H-VPLS could do the same, but that requires hardware that I do not have (7600). Could I accomplish the same task with my current 6509 in the core and 3750 and 400 series access switches? Any help would be greatly appreciated.