<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On 27 December 2017 at 05:39, Kim-Norman Sahm <span dir="ltr"><<a href="mailto:kisahm@t-online.de" target="_blank">kisahm@t-online.de</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
i've detected a performance issue by accessing an floating ip in a<br>
different openstack network (same tenant).<br>
<br>
example:<br>
i have one tenant with two internal networks.<br>
each network has its own vrouter which is connectet to the extnet.<br>
the physical network infrastructure is 10Gbit/s.<br>
<br>
         networkA   <br>
   VM1 ------|               extnet<br>
             |----|vrouter1|--<wbr>--|<br>
   VM2 ------|                  |<br>
                              <wbr>  |---ext<br>
         networkB             <wbr>  |<br>
   VM3 ------|                  |<br>
             |----|vrouter2|--<wbr>--|<br>
   VM4 ------|<br>
<br>
VM1 -> VM2      ~8,6Gbit/s<br>
VM3 -> VM4      ~8,6GBit/s<br>
VM1 -> vrouter1 ~8.6GBit/s<br>
VM4 -> vrouter2 ~8,6GBit/s<br>
vrouter1 -> vrouter2 ~8,6Gbits<br>
VM1 -> VM4      ~2,5GBit/s<br>
VM1 -> vrouter2 ~2,5Gbit/s<br>
<br>
detected with iperf3<br>
it's an openstack newton environment with openvswitch 2.6.1<br>
VXLAN mtu is 8950 and 9000 for physical interfaces<br>
<br>
does anybody has an idea what could be the cause of the performance<br>
issue?<br></blockquote><div><br></div><div>Is the router distributed?</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Best regards<br>
Kim<br>
<br>
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</blockquote></div><br></div></div>