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<p class="MsoNormal"><span style="font-size:11.0pt">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Has anyone had any experience running a DNS VNF on Openstack. Typically for these VNFs there is a really huge volume of DNS lookups and this translates to entries for udp in the conntrack table<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Sometimes under load this can lead to
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">nf_conntrack table being FULL<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">The default max on most systems for conntrack is 65536. Some forums suggest increasing this to a very large value to handle large DNS scale.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Question I have is there a way to disable OVS connection tracking on a per port basis in neutron.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Also folks running this in production do you get this working by tweaking ip_conntrack_max and udp timeout?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Ajay<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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