NON-ELEVATED SERVICES AND PROPORTIONAL DELAY DIFFERENTIATION

10/27/03


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Table of Contents

NON-ELEVATED SERVICES AND PROPORTIONAL DELAY DIFFERENTIATION

Road map

Motivation

Objectives

Road map

Service differentiation models

Integrated Services (IntServ)

Differentiated Services (DiffServ)

Non-elevated Services

Alternative Best-Effort (ABE)

Best-Effort Differentiated Services (BEDS)

Equivalent Differentiated Services (EDS)

QBone Scavenger Service (QBSS)

Road map

PROBE

PROBE architecture

Road map

Backlog Proportional Rate

Backlog Proportional Rate (2)

Input and output curves

BPR+: fluid model

BPR+: fluid model

BPR+: fluid model (2)

BPR+: fluid model (3)

BPR+: packetized model

BPR+: packetized model (2)

Packetized BPR+ scheduler

Packetized BPR+ scheduler (2)

Road map

Simulated network topology

Fluid BPR+ vs. packetized BPR+

Input and output curves for TS class

Input and output curves for DS class

Packetized BPR+: influence of buffer size

Packetized BPR+: influence of utilization

Packetized BPR+: influence of load distribution

Packetized BPR+: influence of time scale

Microscopic view

Road map

Packet drop differentiator

Packet drop differentiator (2)

RED/TCP as a control system

TCP/PROBE as a control system

Setting PDD parameter

Setting PDD parameter (2)

Setting PDD parameter (3)

Road map

Simulated network topology

Performance evaluation (UDP)

Influence of delay ratio

Influence of DS class load

Performance evaluation (UDP & TFRC)

Performance evaluation (TFRC)

PROBE summary

Road map

Conclusions

Open issues and future work

References

References (2)

Questions

Author: Vladimir Vukadinovic

Email: vladimir@cs.sfu.ca

Home Page: http://www.ensc.sfu.ca/~ljilja/cnl/