Traffic Engineering for ISP Networks

Table of Contents

Outline

Traffic Engineering in an ISP Backbone

State-of-the-Art in IP Networks

Requirements for Traffic Engineering

Modeling Traffic Demands

Traffic Matrix

Problem: Multiple Exit Points

Traffic Demand

Ideal Measurement Methodology

Measuring Flows Rather Than Packets

NetFlow Data

Identifying Where the Traffic Can Leave

Locating the Set of Exit Links for Prefix d

Adapted Measurement Methodology

Inbound and Outbound Flows on Peering Links

Inferring Ingress Links for Outbound Traffic

Inferring Ingress Links for Outbound Traffic

Computing the Traffic Demands

Experience with Populating the Model

Proportion of Traffic in Top Demands (Log Scale)

Time-of-Day Effects (San Francisco)

Traffic-Engineering Implications

Conclusions

Better Measurement/Monitoring

To Learn More...

Email: isma@caida.org

Home Page: http://www.caida.org/workshops/isma/0012/

Other information:
Internet Statistics and Metrics Analysis Workshop - Winter 2000 San Diego Supercomputer Center - University of California, San Diego December 7-8, 2000 

Download presentation source