1. International Options How can we scale
Jennifer M. Schopf, PhD
Director, International Networks
August 8, 2017

2. International Networks @IU Links

3. But its about more than just the network
Measurement and Monitoring
Is the link working?
Who’s using it?
Are they doing ok?
Working with end users to support science!
Better data access == Better science
Who do you ask when you data transfer isn’t right?

4. But its about more than just the network
Measurement and Monitoring
Is the link working?
Who’s using it?
Are they doing ok?
Working with end users to support science!
Better data access == Better science
Who do you ask when you data transfer isn’t right?
Rob Gardner: Collaborative Science begins with Data Transfers

5. Harper Reed, Obama’s second campaign CTO at IU Statewide October 2016

6. NetSage: Network measurement, analysis, and visualization

7. What does NetSage tell you?
Today:
How used are the links?
Where are congestion points?
Soon:
What science domains are using the links?
Identification of “problematic” flows

8. NetSage Data Sources Passive measurements Active Measurements SNMP
Flow data from routers
Packet header inspection from TSTAT
Active Measurements
PerfSONAR

9. NetSage Portal (2)

10. NetSage Portal (3)

11. NetSage Portal (4)

13. Year 3 Focus What are the top sites that use the IRNC links?
What are the top science projects that use the IRNC links?
How can we best identify a list of top talkers for each link?

14. “Why is understanding performance hard?”
Why do scientists find it hard to move data effectively?
Why is it hard to find the right network person to talk to about problems?

15. “Why is understanding performance hard?”
Why do scientists find it hard to move data effectively?
Why is it hard to find the right network person to talk to about problems?
Ron Hutchins: There is something intrinsically hard in what we’re trying to do

16. Why is understanding data movement hard?
Lots of pieces - Host system through networks to host system
No one controls all the pieces
Unknown expectations for what performance should be
Theoretical vs pragmatic
Asymmetric paths
Soft failures are hard to find
Many, many points of coordination

19. Building an army of self sufficient and diverse engagement practitioners around the world
Help do this beyond DOE

20. Building our Engagement Army
Joint Center being developed with ESNet
Center for Engagement and Networks
Provide support and assistance to anyone trying to transfer data
Provide resources and assistance to help
Application scientists
Network and campus engineers
People training up to be an engagement specialist

21. What do we do? Promoting effective technologies End to end performance
DMZ, DTN
PerfSONAR
Data analysis
End to end performance
Holistic approach

22. What do we do?
Promoting effective technologies
DMZ, DTN
PerfSONAR
Data analysis
End to end performance
Holistic approach
Jerry Sheehan: We don’t have a network architect – we have people who run networks

23. Two Types of Engagement
Case Studies
Walk through your science
Understand needs and planning
Think of this as regular maintenance, oil change, or planning to buy a new car
“Roadside” Assistance
This file transfer worked last week!
Think of this like a flat tire, crash repair
At IU this is done by both and the IRNC GlobalNOC Performance Engagement Team

24. If we want to scale…
Measurement, monitoring, and engagement are linked
The people problem is as hard or harder than the technical ones
Need an army of the willing
More information: Jennifer Schopf

25. Acknowledgements IN@IU is funded by
NSF awards # , # , # , # , #
The TransPAC PacificWave 100gb/s network fabric is provided by Pacific Northwest GigaPop
More information: