Quality of Service

Table of Contents

Quality of Service

Overview

Measurement mechanism

Deployment

Deployment 2/2

Results: Top level view - Aug-99

Problem areas

E. Europe

Russia

European performance from U.S.

Impact on applications

PPT Slide

Bulk transfer - Performance Trends

Interactive apps - Delay

Interactive apps- Packet loss

Interactive apps - Jitter

SLAC-CERNJitter

Availability -Routing convergence

Availability - Outage probability

Error free seconds

Improving QoS

More bandwidth

Reserved bandwidth

Reserved BW - DESY & .edu/.ca

Differentiated Services 1/2

Differentiated services 2/2

Conclusions

More Information

Email: cottrell@slac.stanford.edu

Home Page: http://www.slac.stanford.edu/grp/scs/net/talk/

Other information:
R. Les Cottrell, Assistant Director, SLAC Computer Services

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