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<div class="moz-cite-prefix">Is the network node also acting as a
Compute node ?<br>
The issue you were mentioning was related to the tap virtual
device (for DHCP leases) : if the network node goes down, then the
DHCP lease is expiring on the vm without being reack, and then
your instance is loosing its IP address.<br>
By recreating the bridges upon reboot on the network node, the tap
interface will be back up. On the VMs, only a DHCP request is
enough, not a reboot (or even a compute node reboot).<br>
<br>
I know there is also a second bug related to virtio bridges on the
compute nodes. This is still a bit unclear to me, but upon compute
node reboot, virtio bridges are also not reattached, only new
instances created afterwards.<br>
<br>
Could you please run 'ovs-dpctl show br-int' (provided br-int is
the right bridge), 'ovs-vsctl show' and 'brctl show' ?<br>
<br>
Le 01/03/2013 21:28, The King in Yellow a écrit :<br>
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<blockquote
cite="mid:CABDznXuBckhVyyLurg=-cV68kO0G=HZYG4Ki_KxRdjeepzCHCQ@mail.gmail.com"
type="cite">
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<div class="gmail_quote">On Fri, Mar 1, 2013 at 10:11 AM,
Sylvain Bauza <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:sylvain.bauza@digimind.com" target="_blank">sylvain.bauza@digimind.com</a>></span>
wrote:<br>
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0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
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<div>There is a known bug for the network bridges, when
rebooting : <br>
<a moz-do-not-send="true"
href="https://bugs.launchpad.net/quantum/+bug/1091605"
target="_blank">https://bugs.launchpad.net/quantum/+bug/1091605</a><br>
<br>
Try to delete/recreate your br-int/br-ex and then
restart openvswitch_plugin/l3/dhcp agents, it should
fix the issue.</div>
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<div>Thanks! Now, I can create a new instance, and that
works. My previous instances don't work, however. What
do I need to do to get them reattached?<br>
<br>
<br>
<span style="font-family:courier new,monospace">root@os-network:/var/log/quantum#
ping 10.5.5.6<br>
PING 10.5.5.6 (10.5.5.6) 56(84) bytes of data.<br>
^C<br>
--- 10.5.5.6 ping statistics ---<br>
2 packets transmitted, 0 received, 100% packet loss,
time 1008ms<br>
<br>
root@os-network:/var/log/quantum# ping 10.5.5.7<br>
PING 10.5.5.7 (10.5.5.7) 56(84) bytes of data.<br>
64 bytes from <a moz-do-not-send="true"
href="http://10.5.5.7">10.5.5.7</a>: icmp_req=1 ttl=64
time=2.13 ms<br>
64 bytes from <a moz-do-not-send="true"
href="http://10.5.5.7">10.5.5.7</a>: icmp_req=2 ttl=64
time=1.69 ms<br>
64 bytes from <a moz-do-not-send="true"
href="http://10.5.5.7">10.5.5.7</a>: icmp_req=3 ttl=64
time=1.93 ms<br>
64 bytes from <a moz-do-not-send="true"
href="http://10.5.5.7">10.5.5.7</a>: icmp_req=4 ttl=64
time=1.01 ms<br>
^C<br>
--- 10.5.5.7 ping statistics ---<br>
4 packets transmitted, 4 received, 0% packet loss, time
3003ms<br>
rtt min/avg/max/mdev = 1.013/1.692/2.132/0.424 ms<br>
root@os-network:/var/log/quantum# </span><br>
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