M.Y.L. Wong and C.K. Li (PRC)
:Queuing, QoS, WFQ, WF2Q+, WDRR.
A modified Deficit Round Robin Queuing Algorithm,
which can be applied in weighted Quality of Service
(QoS) enabled network node, is proposed. The proposed
Weighted Deficit Round Robin (WDRR) algorithm uses a
simple mechanism to provide the weighted control in the
nodes. The weight sharing ability of the algorithm
remains comparable to the Weighted Fair Queuing
(WFQ) and the Worst-case Fair Weighted Fair Queuing
Q+) algorithms. The computational complexity
of the proposed algorithms is, however, lower than both
the WFQ and the WF2
Q+, yet provides a fair queuing
among different flows in a Constant Bit Rate TCP traffic
condition. The proposed algorithm is preferred one to
implement weighted QoS in practical network nodes.
Weighted Deficit Round Robin can provide fair queueing
among different flows in the Constant Bit Rate TCP
traffic condition. It is a good choice to enable QoS with
weighted function in the network node.