Service provisioning policy for FIFO-based GFR scheme

This paper describes a service provisioning policy for the GFR (guaranteed frame rate) service. The GFR enables provision of cost-effective ATM services for IP-based data communications. There are two implementation alternatives for the GFR, which are FIFO and per-VC queuing. It is difficult to provide consistent services when both schemes exist in a network, because they show different characteristics for TCP/IP traffic. Taking into account this issue, this paper discusses GFR service policy that is fair for all the users. In order to clarify GFR service characteristics, the performance of our developed FIFO-based GFR circuit is demonstrated. Then the relationship between fairness and charging system is discussed and a hybrid charging scheme is proposed.