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On 05/03/2013 08:42 PM, Minton, Rich wrote:
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<p class="MsoNormal">Quick question regarding quantum networking
interfaces, specifically br-int.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have a 5 node cluster – 1
Controller/compute node which runs the Quantum server and the
l3-agent, 1 Network node which runs the dhcp-agent, and 3
compute nodes. The all have openvswitch installed and I have
created the br-int interfaces on all. One thing I noticed is
that only the quantum server node (controller) and the network
node have an entry for “br-int” when I run the route command.
The compute nodes do not.</p>
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<br>
This could be a result of the following:<br>
1. On the nodes that you have routing entry for br-int you most
probably added a interface , that is, you have created a file
/etc/sysconfig/network-scripts/ifcfg-br-int<br>
2. On the other nodes you most probably just added br-int to the ovs<br>
<br>
<br>
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<p class="MsoNormal"> The VMs on my other compute nodes get an
IP from DHCP but I am not able to ping my gateway (10.0.56.1)
from within the VM.</p>
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<br>
I have a few questions which hopefully could provide some more
details (sorry for the silly questions - it is just a bit difficult
to debug remotely):-<br>
Which version are you using?<br>
Are you able to send pings between VM's on different hosts?<br>
Did you try and capture traffic on the interfaces of the various
hosts? This may help isolate where the ICMP is being discarded.<br>
<br>
Thanks<br>
Gary<br>
<br>
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<p class="MsoNormal"> I can ping the same gateway from each of
the compute hosts. I double-checked all of my config files and
they appear to be correct. I can send any of those along if
needed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Controller - with Quantum Server<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Kernel IP routing table<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Destination Gateway Genmask
Flags Metric Ref Use Iface<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.0.0.0 * 255.255.255.0
U 0 0 0 eth0.502<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.255.254.0 * 255.255.255.0
U 0 0 0 eth0.159<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">172.17.0.0 * 255.255.255.0
U 0 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1003 0 0 eth0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1004 0 0 eth1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New";background:yellow;mso-highlight:yellow">link-local
* 255.255.0.0 U 1009 0 0
br-int</span><span style="font-family:"Courier
New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1010 0 0 eth0.159<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1011 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1012 0 0 eth0.502<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1028 0 0 br-ex<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">default 172.17.0.1 0.0.0.0
UG 0 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal">Network Node<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Kernel IP routing table<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Destination Gateway Genmask
Flags Metric Ref Use Iface<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.0.0.0 * 255.255.255.0
U 0 0 0 eth0.502<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.255.254.0 * 255.255.255.0
U 0 0 0 eth0.159<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">172.17.0.0 * 255.255.255.0
U 0 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.0.56.0 * 255.255.248.0
U 0 0 0 tapaee8f28f-74<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1003 0 0 eth0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1004 0 0 eth1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New";background:yellow;mso-highlight:yellow">link-local
* 255.255.0.0 U 1009 0 0
br-int</span><span style="font-family:"Courier
New""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1010 0 0 eth0.159<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1011 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1012 0 0 eth0.502<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">default 172.17.0.1 0.0.0.0
UG 0 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal">Compute Nodes<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Kernel IP routing table<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">Destination Gateway Genmask
Flags Metric Ref Use Iface<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.0.0.0 * 255.255.255.0
U 0 0 0 eth0.502<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">10.255.254.0 * 255.255.255.0
U 0 0 0 eth0.159<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">172.17.0.0 * 255.255.255.0
U 0 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1005 0 0 eth0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1006 0 0 eth1<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1042 0 0 eth0.159<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1043 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">link-local * 255.255.0.0
U 1044 0 0 eth0.502<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">default 172.17.0.1 0.0.0.0
UG 0 0 0 eth0.500<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal">Ok, so this may not be a quick question…<o:p></o:p></p>
<p class="MsoNormal">Once again, all or your help is greatly
appreciated.<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal">Rick<o:p></o:p></p>
<p class="MsoNormal"><span style="font-family:"Courier
New""><o:p> </o:p></span></p>
<p class="MsoNormal"><u><span
style="font-size:14.0pt;color:#990000">Richard Minton<o:p></o:p></span></u></p>
<p class="MsoNormal"><span style="font-size:10.0pt">LMICC
Systems Administrator<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">4000 Geerdes
Blvd, 13D31<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">King of
Prussia, PA 19406<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt">Phone:
610-354-5482<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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