The increasing diversity in Internet applications necessitates: extended In
ternet architecture that can differentiate forwarding treatment of differen
t types of flows. Diffserv can be a solution to the problem when it is augm
ented by several additional components. In this paper we describe various i
ssues and possible directions in augmenting Diffserv. We present our analys
is of Diffserv architecture, anticipated developments to augment Diffserv a
rchitecture, and potential applications of Diffserv.