[Nrg-l] NRG on Wednesday Novemeber 17th at 3pm

Niky Riga inki at cs.bu.edu
Sat Nov 13 02:13:05 EST 2004

This week Nahur is presenting a paper that appeared in this year's IMC.
The paper is:
"Traffic Matrix Estimation on a Large IP Backbone - A Comparison on Real 
A link for the paper and the abstract follows.
The NRG will be on Wednesday 11/17/04 at 3pm at the grad lounge.

CU all there,


This paper considers the problem of estimating the point to point
traffic matrix in an operational IP backbone. Contrary to previous
studies, that have used a partial traffic matrix or demands estimated
from aggregated Netflow traces, we use a unique data set of complete
traffic matrices from a global IP network measured over five-minute
intervals. This allows us to do an accurate data analysis on the
time-scale of typical link-load measurements and enables us to make a
balanced evaluation of different traffic matrix estimation techniques.
We describe the data collection infrastructure, present spatial and
temporal demand distributions, investigate the stability of fan-out
factors, and analyze the mean-variance relationships between demands.
We perform a critical evaluation of existing and novel methods for traffic
matrix estimation, including recursive fanout estimation, worst-case
bounds, regularized estimation techniques, and methods that rely on
mean-variance relationships. We discuss the weaknesses and strengths of
the various methods, and highlight differences in the results for the
European and American subnetworks.

Use a smile as your shield. It will protect u better than cruelty in 
return will.

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