Task Force 3

Update

Request Response

Task 1 Task 2 Task 3 Task 4

Update Update Update

A B C D

Test Update Lookup TableSignificant change detected

CS(3,1)

CS(3,2)

CS(3,3)

CS(1,1) CS(2,3) CS(3,2) CS(4,3)

CS(2,1)

CS(2,2)

CS(2,3)

CS(3,1)

CS(3,2)

CS(3,3)

CS(1,1)

CS(1,2)

CS(1,3)

Swap services after 2000 requests

Test bed setup TF3

Real HTTP IP traffic

Orchestrator(composite

service)

D ispatcher

S ervice registry + interface

Control interface

L oad generator

Control interface

R equestor

Matlab Control interface

HTTP Connection

Experiment Control Connection

Control interface

Service interface

SubService 1(atomic service)

C ontrol interface

Service interface

Algorithms run in Matlab

SubService N(atomic service)

Task Force 3

0 1000 2000 3000 4000 5000-40

-30

-20

-10

0

10Moving average over 600 requests

number of requests

rev

enu

e

No QoS controlQoS control

BE

TA-w

ork

sho

p o

n p

oll

ing

sys

tem

s

Progress in TF3

• First version test-bed implementation ready• Good results about the QoS improvement with

autonomous control• Results presented at ITC in Ghent• Proceedings publication

Current activities:• Follow up meeting between CWI, TNO and University of

Antwerpen (Prof. Steven Latre, Bart Spinneweyn)• Smart content adaptation for HTTP video streaming (EU-project)• QoS control in PCN networks (AT&T)• Work together with TF4 on document on methods