Performance WG Face-to-Face Meeting

at Internet2 Spring Member Meeting

Monday, April 27, 2009

Internet2 Update \[Jeff Boote\]

An update on the software releases available for Internet2 performance and measurement tools and a preview of the roadmap.

REDDnet's Use of Performance Tools \[Ezra Kissel\]

REDDnet has disk depots that cache data placed throughout the U.S, and they have been experiencing challenges moving data between the depots.

View the REDDnet presentation

Highlights:

• REDDnet provides "Working storage" to help manage the logistics of sharing, moving and staging large datasets across wide areas and distributed collaborations.
• Participating Institutions: Vanderbilt, Tennessee, Stephen F. Austin, NC State, Nevoa Networks, Delaware
• Host Sites: Caltech, Florida, Michigan, ORNL, SDSC, TACC, UC Santa Barbara (Stephen F. Austin, Tennessee, Vanderbilt)
• Tools used for performance monitoring inlcude:
  • OWAMP (3.1)
  • BWCTL (1.3)
  • NDT client (3.5)
  • perfSONAR-PS perfSONAR-BUOY (regular testing framework for bwctl)
• Performance monitoring includes:
  • TCP tuning on all hosts
  • Picked a set of hosts to investigate from the "worst offenders"
  • Divide and conquer approach (Test from depot to POP, Divide path, Narrow down where the problem "ends")
  • Examples:
    • REDDnet Umich and CHIC I2 POP
    • REDDnet Vanderbilt to Atlanta I2 POP

 Internet2 and Cisco Telepresence \[Aaron Brown\]

A behind-the-scenes look at the planning and setup for the Cisco Telepresence Demo shown at Wednesday's General Session.

Aaron Brown presented on"Regular Latency Monitoring Or: How I Learned to Start Worrying and Hate the Jitter"

view the slides on latency monitoring.

Highlights

• Throughput testing is being done by LHC, ESNET and others
• But what about latency testing for latency sensitive applications such as Cisco Telepresence Demo?
• Goals:
  • Measure delay/jitter/loss between these points
  • Be able to fix any issues that come up
• Approach: Deployed measurement machines at the endpoints and set up regular tests between the machines
  • Tools:
    • perfSONAR-BUOY

• • • OWAMP
• Analysis software was written or modified to make it easy to view and understand the data.

Interoperability Testing with Europe - Update

*\[John Moore, Matthew Zekauskas, Tom Throckmorton\]*

An update on the Multi-Vendor 10 Gigabit Testing that Matt Zekauskus and Tom Throkmorton discussed at the WG at the Feb. 2009 Joint Techs in College Station.

 Assembling a PERT team in the U.S.

http://www.geant2.net/server/show/conWebDoc.1602
Discussion of establishing a team of network engineers representing each of the RONs that would be available on a rotating basis to troubleshoot complex, multi-domain issues.

 WG Charter

Carla presented the draft WG Charter, and invited comments.  Carla would like volunteers to serve with her as a  co-chair of the working group.