<div dir="ltr"><div>Oliver, </div><div><br></div><div>Even the largest DHCP servers don't require bonded interfaces except in very specific configurations. </div><div><br></div><div>This is probably an issue with your DHCP Server: If you are running your DHCP server on a Bonded interface (generally not required), there may be some switch-side configuration settings you may want to look into ('PortFast' or 'Portfast Edge'. If you are using a 802.1ad Interface with Load Balancing (Round Robin) "Mode 4" as the serving interface for DHCP, you can easily run into problems if you happen to have a "Mode 4" VPC configured across an A-B switch pair. </div>
<div><br></div><div>In general, I have seen more problems caused with UDP-based protocols and 802.1ad "Mode 4" than simple failover Modes ("Mode 1" and "2"), as a consequence I have shied away from using 802.1ad "Mode 4" for DHCP and TFTP Services. I have had much better results using 802.1ad "Mode 4" on TCP-based protocols (Web and File Services). </div>
<div><br></div><div>A simple test for this would be to disconnect all but one interface from the server and run a couple of traces vs. all interfaces connected.</div><div><br></div><div>Best,</div><div><br></div><div>Matt</div>
<div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 20, 2014 at 1:52 PM, Oliver Rath <span dir="ltr"><<a href="mailto:rath@mglug.de" target="_blank">rath@mglug.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi List,<br>
<br>
I get here some strange error <a href="http://ipxe.org/err/040ee1" target="_blank">http://ipxe.org/err/040ee1</a> if multiple pcs<br>
are starting here over net with a load of ~500mbit on bond0-interface<br>
(from 4x eth0 interfaces).<br>
<br>
It seems, that it happens on this line:<br>
<br>
:dhcp<br>
dhcp || goto dhcp<br>
<br>
After some tries (partly > 40) the dhcp is successful again and the<br>
script continues. What can I do to avoid this? Longer dhcp-waiting time?<br>
On which side?<br>
<br>
TfH!<br>
<br>
Oliver<br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br>There is never time enough to do it right, but there always seems to be enough time to do it again.<br>
</div>