<div dir="ltr"><div>hope this helps.</div><div><br></div><div><br></div><div><br></div><a href="http://lists.openstack.org/pipermail/openstack/2014-January/005011.html">http://lists.openstack.org/pipermail/openstack/2014-January/005011.html</a><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 6, 2015 at 2:18 PM, BUTTS, Darren (Darren)** CTR ** <span dir="ltr"><<a href="mailto:darren.butts@alcatel-lucent.com" target="_blank">darren.butts@alcatel-lucent.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p class="MsoNormal">All<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I have installed kilo successfully using packstack to a combination of controller and compute nodes, I am able to successfully create instances however the virtual interfaces are using an MTU of 1500 even though all the bridge interfaces
are defined as 9000. I need to ensure that all the virtual interfaces are using an mtu of 9000 but this seems to be getting defined by some other process regardless of how the physical interfaces are configured.
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Is there a known limitation or issue with OVS plugins over ML2 or another plugin that causes issues with defining MTU.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">You can see below that br-int is set to 1500 ! is this controlling all the other virtual interfaces ? do you have to bind br-int to a real physical interface in order for it to be correctly set ? none of this is done or seen as an option
in packstack so it means additional configuration is that really what is needed ?
<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">[root@blade15 ~]# ifconfig | grep mtu<u></u><u></u></p>
<p class="MsoNormal">br20: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br100: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br111: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br112: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br201: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br202: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br210: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br220: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br400: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">br-int: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">br-tun: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.20: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.100: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.111: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.112: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.201: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.202: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.210: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.220: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">enp2s0f0.400: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">int-br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">lo: flags=73<UP,LOOPBACK,RUNNING> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">phy-br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9000<u></u><u></u></p>
<p class="MsoNormal">qbr16cfbed6-ba: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qbr517cc995-1a: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qbr7cd380f7-44: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qbr8e16ade0-98: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qbrbe028441-60: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qbre998f0fd-33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qbred796a27-14: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvb16cfbed6-ba: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvb517cc995-1a: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvb7cd380f7-44: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvb8e16ade0-98: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvbbe028441-60: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvbe998f0fd-33: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvbed796a27-14: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvo16cfbed6-ba: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvo517cc995-1a: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvo7cd380f7-44: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvo8e16ade0-98: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvobe028441-60: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvoe998f0fd-33: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">qvoed796a27-14: flags=4419<UP,BROADCAST,RUNNING,PROMISC,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">tap16cfbed6-ba: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">tap517cc995-1a: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">tap7cd380f7-44: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">tap8e16ade0-98: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">tapbe028441-60: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">tape998f0fd-33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal">taped796a27-14: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Any help or guidance would be appreciated.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks<span class="HOEnZb"><font color="#888888"><u></u><u></u></font></span></p><span class="HOEnZb"><font color="#888888">
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Darren<u></u><u></u></p>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Nasir Mahmood<br></div>
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