vBNS QoS enhancement

The vBNS (very-high-performance Backbone Network Service) is a high-speed Internet Protocol (IP) over an ATM national backbone network. A "reserved bandwidth" service is designed based on the network traffic characteristics as the initial quality-of-service (QoS) offering for the vBNS user community. This paper outlines the improved configuration in the ATM layer and the required new router mechanisms to support this service.