Network stack changes

George Neville-Neil gnn at neville-neil.com
Thu Sep 19 19:57:16 UTC 2013


On Sep 14, 2013, at 15:24 , Luigi Rizzo <rizzo at iet.unipi.it> wrote:

> On Saturday, September 14, 2013, Olivier Cochard-Labbé <olivier at cochard.me>
> wrote:
>> On Sat, Sep 14, 2013 at 4:28 PM, Luigi Rizzo <rizzo at iet.unipi.it> wrote:
>>> 
>>> IXIA ? For the timescales we need to address we don't need an IXIA,
>>> a netmap sender is more than enough
>>> 
>> 
>> The great netmap generates only one IP flow (same src/dst IP and same
>> src/dst port).
> 
> True the sample app generates only one flow but it is trivial to modify it
> to generate multiple flows. My point was, we have the ability to generate
> high rate traffic, as long as we do tolerate a .1-1us jitter. Beyond that,
> you do need some ixia-like solution.
> 
On the bandwidth side, can a modern sender with netmap really do a full 10G?  I hate the cost of an
IXIA but I have not been able to destroy our stack as effectively with anything else.

Best,
George

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