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Effect of Number of Drop Precedences in Assured Forwarding
draft-goyal-dpstdy-diffserv-01

Document Type Expired Internet-Draft (individual)
Authors Professor Raj Jain , Mukul Goyal , Padmini Misra
Last updated 1999-07-01
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Intended RFC status (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:
https://www.ietf.org/archive/id/draft-goyal-dpstdy-diffserv-01.txt

Abstract

This informational draft presents a simulation study to compare the performance of two and three drop precedence levels in an Assured Forwarding traffic class for mixed TCP/UDP traffic. This is a revised and comprehensive version of our previous study presented at the March 99 IETF Meeting at Minneapolis. For this study, we consulted the principal authors of the Assured Forwarding Class to determine the parameter set and configurations under which it would be beneficial to have 3-drop preferences. The results presented here are based on 1296 simulations (different parameter/traffic pattern combinations). The results of the simulation study suggest that optimal number of drop precedence levels in a traffic class depends on the traffic load and amount of reserved traffic. In a mixed TCP- UDP traffic scenario, best performance can be achieved with either 2 or 3 levels of drop precedence if most of the TCP packets have 'better' drop precedence than excess UDP packets.

Authors

Professor Raj Jain
Mukul Goyal
Padmini Misra

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)