In this paper we present a new mechanism
to provide an assured service in terms of target rate
and fair excess bandwidth, like the Internet Assured
Service. Research in Internet Assured Service faced
up both questions in separate ways proposing
different traffic conditioners to work with the RIO
buffer management, and proposing different
modifications to this buffer management, among
others. In this work, we suggest using a buffer
management scheme different from RIO that also
treats in-of-profile and out-of-profile packets
differently but avoiding interference between them.
This scheme is used together with the Counters Based
traffic conditioner because of its high accuracy in
guaranteeing target rates. We evaluate and compare
by simulation the performance of our proposal using
TCP RENO sources. One important issue to be
considered is that the proposal is a feasible
alternative to the standard architecture for
Differentiated Services in Internet.This work was supported by the Spanish
Research Council under grant TIC2000-1734-
C03-03
