Abstract:
Differentiated Service Network (DiffServ) provides an
architecture that is scalable and capable of differentiating
applications' quality of service (QoS). However, it does not
take account fairness issues among flows which belong to
the same class. This paper suggests a solution to provide
some fairness among flows without sacrificing scalability.
Our solution involves a Edge-Aware Resource Discovery
(RD)feedback loop and Fair Intelligent Admission Control
(FIAC) scheme. Per-flow FIAC estimates flow fair share at
the edge node and decides to admit or deny individual flow
in terms of fairness.
Simulation results demonstrate that FIAC over DiffServ
is able to prevent uncontrolled UDP traffic from depriving
TCP-controlled flows of bandwidth share when they
are aggregated to the same class. Furthermore, it also can
improve fairness among TCP flows which have different
round trip time (R1T). We believe that our solution is scalable
and can be deployed immediately.
