perfSONAR User Q&A and Other Discussion

[Aaron Brown <>]

Hey Chris,

On Mar 12, 2014, at 10:01 AM, Christopher A Konger 
<>
 wrote:

> That  DualInterface page was geared to those wanting to deploy separate 1G 
> and 10G interfaces (where the file "ten-g-hosts.txt" specified which 
> connections should go through the 10G NIC).  And the FAQ always had the 
> disclaimer about testing from the dually-connected host and difficulty of 
> specifying which interface to use (i.e., 
> "/opt/perfsonar_ps/toolkit/etc/discover_external_address.conf")
> 
> I heard rumors (which may or not be true)  there was exploration of 
> splitting throughput and latency processes onto two separate NICs in the 
> same machine (a different type of Dual Interface deployment which really 
> isn't covered in the FAQ).
> 
> Is that what the new RC build supports?
> 
> If not, apparently an uber-scheduler is being tested which may avoid 
> overlapped throughput/latency tests interfering with each other. That might 
> allow the same goal (I know some Institutions which are only able to deploy 
> a single node at current time, but want it to support both types of tests 
> without overlap).
> 
> Thanks for the additional clarification about the new RC build!

It lets you set the interface to use for each test. However, ping and 
traceroute tests (but not owamp) get scheduled by bwctl so throughput tests 
can’t interfere with them. We may transition the owamp tests in the future, 
but the differing semantics of them (run constantly) make it a bit more 
challenging. Basically, I want to make sure they don’t end up using all the 
bwctl test time slots before we swap over.

If you are willing to be a guinea pig , I sent some instructions in my email 
to John.

Cheers,
Aaron

> 
> Chris Konger
> 
> Clemson Computing and Information Technology
> Network Services and Telecommunications
> Clemson University, SC 29634-2803
> Office: 864-656-8140
> 
> -----Original Message-----
> From: 
> 
>  
> [mailto:]
>  On Behalf Of John W. O'Brien
> Sent: Wednesday, March 12, 2014 9:42 AM
> To: Aaron Brown
> Cc: 
> ;
>  
> 
>  Users; Brian Tierney
> Subject: Re: [perf-node-users] Re: [perfsonar-user] Configuring perfSONAR 
> Toolkit on a multi-homed system
> 
> On 3/12/14 9:38 AM, Aaron Brown wrote:
>> Hey John,
>> 
>> If you’d like to try out a beta version of the Toolkit that lets you
>> configure the interfaces for tests, I can point you at a NetInstall
>> for an -rc release of the next Toolkit version.
> 
> Aaron,
> 
> Yes, I would like to try the RC build. Thank you.
> 
> -- 
> John W. O'Brien
> Senior Network Engineer
> Information Systems and Computing
> University of Pennsylvania
> 
>  215-898-9818
> OpenPGP key ID: 0x155016CB
>