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<p>Hi All</p>
<p>I've been working on a new standard installation for our
machines, and one of the boxes I'm testing is a DIN rail unit with
three Ethernet, two igb port and one igc port.</p>
<p>During my testing I tried the igb and igc for the EtherCAT
interface and found that the igc can transmit much faster than the
igb has datagram UNMATCHED! messages even at 1000 packets per
second.</p>
<p>The igc can do 4000 packets without any of these messages, and
very few at 8000 packets.<br>
</p>
<p>I'm using a 6.6.11 kernel with PREEMPT_DYNAMIC and the driver
packages provided from
<a class="moz-txt-link-freetext" href="https://mirrorcache-au.opensuse.org/repositories/science:/EtherLab/Debian_12/">https://mirrorcache-au.opensuse.org/repositories/science:/EtherLab/Debian_12/</a></p>
<p>Any ideas?</p>
<p>Mike<br>
</p>
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