perfSONAR User Q&A and Other Discussion

[Casey Russell <>]

Thank you Brian, for all your time in this early testing. 

I'm still waiting for my Cubox-i4-Pro to arrive.  KanREN will be working to test-pilot these devices as soon as we can get our hands on one. 

I'm growing a bit concerned about Solid-Run's ability to supply a decent number of these things.  I hope they can ramp up production soon, because these little guys appear to beat the pants off of most other devices in the class.

Casey Russell

Network Engineer

Kansas Research and Education Network

4950 Research Park Way
Lawrence, KS 66047

(785)856-9820  ext 9809

On Thu, May 1, 2014 at 11:40 AM, Brian Tierney <> wrote:

Hi Folks:

I've made some progress on getting perfSONAR running on my $120 cubox-i4Pro.

Attempt #1 was to use their debian kernel and install everything from
source. That worked fine, but since perfSONAR is RPM-based, I wanted
to see if I could find an OS for it that supported RPMs.

Then I found a Fedora kernel here:
http://cubox-i.cf/files/fedora20-kernel3.14rc4-cubox-i-20140310.img.zip

Which works great, except it does not seem to work with an HDMI
monitor, so you have to put it on a subnet with DHCP and ssh in to
change the default root password of 'fedora'.

I built some RPMs for bwctl and owamp and temporarily put them here if
anyone has one of these devices and wants to play with perfSONAR on
it:
  http://antg-dev.es.net/rpms/arm/

After these are tested more we can move these to the main Internet2 RPM repo.
And 'yum install nuttcp iperf3 iperf' just works, as all are in the
main fedora arm repo. Cool!

So far everything is working well.  NTP drift is around 1ms, which is
usable, and TCP flows max out at 350Mbps, which is good enough for
many use cases. But I'd recommend mainly using these devices for
packet loss testing, not throughput testing.



--
Brian Tierney, http://www.es.net/tierney

Energy Sciences Network (ESnet), Berkeley National Lab

http://fasterdata.es.net