ndt-users list created

[Dave Leibfritz <>]

Does anyone know where the updated version is?

On 08/13/2013 08:24 PM, Richard Carlson wrote:
> Hi Dave;
>
> We found a bug in the code recently where the S2C byte counter was set
> to an 32 bit int value.  At 10 Gbps rates this overflows with the
> obvious results.
>
> The latest version is fixed.  Somebody at Internet2 can tell you what
> the updated version is.
>
> Rich
>
> On 08/13/2013 12:44 PM, David Leibfritz wrote:
> > When running NDT tests for 10 gigabit connections the client-to-server
> > results
> > are what we expect, 5+ gigabit/s, but the server-to-client is less than 1
> > gigabit/s.  Can you explain why or how we resolve this.  Running NDT
> > tests for
> > 1 gigabit/s connections are consistent in both directions.  Below is an
> > example or our 10 gigabit NDT tests:
> >
> > running 10s outbound test (client-to-server [C2S]) ..... 5709.95Mb/s
> > running 10s inbound test (server-to-client [S2C]) ......   898.46Mb/s
> >
> > The slowest link in the end-to-end path is a 10 Gbps 10 Gigabit
> > Ethernet/OC-192 subnet

--

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David W. Leibfritz                          Phone:    (630) 252-9276
Accelerator Engineering Support Division    Email: 

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