Re: jitter bursts

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On Fri, Aug 31, 2007 at 09:55:23AM -0700, Sven-Thorsten Dietrich wrote:
> >  +--------+  +-----------+ +-----------+
> >  | PC EPL |  | Second PC | | EPL Clamp |
> >  +--------+  +-----------+ +-----------+
> >       |            |            |
> >        \     +----------+       /
> >         \----|    Hub   |------/
> >              +----------+
>
> Can you eliminate the hub as a variable?
>
> I have seen very similar experiments with multicast packets where the
> hub delivered packets out of order, or in a delayed fashion on one port,
> but not on the other.

We've tried it with two different hubs (one industrial DIN rail Phoenix
contact model and a standard netgeat one), without changes.

Robert
-- 
Pengutronix - Linux Solutions for Science and Industry
Entwicklungszentrum Nord     http://www.pengutronix.de
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