We have deployed S3 (Scalable Sensing Service) on Planet-Lab. S3 currently provides the following network metrics between all pairs of Planet-Lab nodes:
  1. End-to-end latency: Estimated latencies (estimated by NetVigator tool) along with measured latencies whenever available.
  2. Bottleneck bandwidth capacity: As measured by Pathrate tool.
  3. End-to-end available bandwidth: As measured by both Pathchirp and Spruce tools. For each source-destination pair, we perform pathchirp measurement immediately followed by a Spruce measurement so that the measurement results can be compared. Note that since Spruce requires the bottleneck capacity to determine available bandwidth, we run it only when bottleneck capacity value is available.
  4. Lossrate: As measured by Tulip tool.
Please refer to the tools page for the information of the measurement tools we use.

You can access the latest snapshot of data by clicking the following link. Our data is updated every 4 hours.

I have read and agree to the following terms.

ATTENTION: USE OF THIS WEBSITE OR INFORMATION PROVIDED BY IT BY HP IS SUBJECT TO THE "AS IS" STATEMENT BELOW AND THE HP LIMITATION OF LIABILITY. BY USING THIS WEBSITE OR THE INFORMATION PROVIDED BY IT, YOU ARE AGREEING TO BE BOUND BY THESE TERMS. IF YOU DO NOT AGREE TO ALL OF THESE TERMS, DO NOT USE THIS WEBSITE.
HEWLETT-PACKARD
"AS IS" WARRANTY STATEMENT
LIMITATION OF LIABILITY STATEMENT
DISCLAIMER. THE SERVICE PROVIDED BY THIS WEBSITE, AND THE INFORMATION PROVIDED BY THIS WEBSITE (COLLECTIVELY THE "SERVICE") IS PROVIDED TO YOU "AS IS". WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. HP SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE.
LIMITATION OF LIABILITY. IN NO EVENT WILL HP OR ITS SUBSIDIARIES, AFFILIATES OR SUPPLIERS BE LIABLE FOR DIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL OR OTHER DAMAGES (INCLUDING LOST PROFIT, LOST DATA, OR DOWNTIME COSTS), ARISING OUT OF THE USE, INABILITY TO USE, OR THE RESULTS OF USE OF THE SERVICE, WHETHER BASED IN WARRANTY, CONTRACT, TORT OR OTHER LEGAL THEORY, AND WHETHER OR NOT ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. YOUR USE OF THE SERVICE IS ENTIRELY AT YOUR OWN RISK.

For questions, comments and suggestions for improvement, email us at "s-cube at hpl.hp.com".

DARPA logo This work is supported in part by DARPA Contract N66001-05-9-8904.

HP Logo

|| S3 home || Tools || Papers || People ||