In absence of any link layer traffic controls or priorityqueuing mechanism in LAN infrastructure (such as shared media LAN), Subnet Bandwidth Management based approach of managing bandwidth is limited to only total amount of traffic load imposed by RSVP associated flows. In such cases no mechanism is available to separate RSVP flows from Best Effort Traffic. This brings usefulness of subnet Bandwidth Manager into question. This paper attempts to use a combination of Integrated Services of Specific Link layer model based on RSVP and IP ratecontrol approach for best effort traffic to manage intradomain traffic in a Differentiated services network.