Implementation of Self Configuring RED (SCRED) algorithm in ns-3

Course Code: CS822

Assignment: # GP3

Overview

Self Configuring RED (SCRED) [1] is a variant of Random Early Detection (RED) [2], it makes RED parameters adaptive to handle wide variety of traffic. This repository provides an implementation of SCRED in ns-3.25 [3].

Simulating SCRED

To simulate SCRED algorithm, the attribute FengAdaptive must be set to true, as shown below:

Config::SetDefault ("ns3::RedQueueDisc::FengAdaptive", BooleanValue (true));

SCRED example

An example program for SCRED has been provided in

src/traffic-control/examples/red-vs-scred.cc

and should be executed as

./waf --run "red-vs-scred --queueDiscType=FengAdaptive"

References:

[1] Feng, W. C., Kandlur, D. D., Saha, D., & Shin, K. G. (1999, March). A self-configuring RED gateway. In INFOCOM'99. Eighteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Proceedings. IEEE (Vol. 3, pp. 1320-1328). IEEE.

[2] Floyd, S., & Jacobson, V. (1993). Random early detection gateways for congestion avoidance. IEEE/ACM Transactions on networking, 1(4), 397-413.

[3] https://www.nsnam.org/ns-3-25/