thank you very much, Vishvananda.<div>But I am still confused about the <a href="http://192.168.0.0/24">192.168.0.0/24</a> and the <a href="http://10.0.0.0/8">10.0.0.0/8</a> ip. What means by "<font face="arial, sans-serif">The addresses will be moved on to the bridge". It means the <a href="http://192.168.0.0/8">192.168.0.0/8</a> will be disappear? In my opinion, the bridged NIC (eth1) should be worked under promiscuous mode and its IP should be 0.0.0.0. So the eth1 should not own any IP. </font></div>
<div><span style="font-family:arial,sans-serif">But if the 192 address doesn't exist, how the compute-note communicate with each other? Through the eth0? I have no idea. </span></div><div class="gmail_extra"><br><br>
<div class="gmail_quote">On Thu, Dec 6, 2012 at 3:12 AM, Vishvananda Ishaya <span dir="ltr"><<a href="mailto:vishvananda@gmail.com" target="_blank">vishvananda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word"><br><div><div class="im"><div>On Dec 5, 2012, at 1:53 AM, Lei Zhang <<a href="mailto:zhang.lei.fly@gmail.com" target="_blank">zhang.lei.fly@gmail.com</a>> wrote:</div><br><blockquote type="cite">
<div style="line-height:1.2;color:rgb(34,34,34);font-size:1em;font-family:Helvetica,arial,freesans,clean,sans-serif;border:none"><p style="margin:1em 0px">Hi all,
</p><p style="margin:1em 0px">I am reading the <a href="http://docs.openstack.org/trunk/openstack-compute/admin/content/libvirt-flat-dhcp-networking.html" style="color:rgb(51,51,238);text-decoration:initial" target="_blank">http://docs.openstack.org/trunk/openstack-compute/admin/content/libvirt-flat-dhcp-networking.html</a>, I got the following deploy architecture. But there are several that I am confused.
</p>
<ul style="padding-left:2em;margin:1em 0px">
<li style="margin:1em 0px">How and why <a href="http://192.168.0.0/24" target="_blank">192.168.0.0/24</a> ip range exist? It is necessary or not? The eth1 on the each physical machine own two ip(<a href="http://10.0.0.0/24" target="_blank">10.0.0.0/24</a> and <a href="http://192.168.0.0/24" target="_blank">192.168.0.0/24</a>)? Is that possible? In the nova-compute, the eth1 should be bridged by br100. the eth1 should not own any IP address, right?</li>
</ul></div></blockquote></div>The addresses will be moved on to the bridge. The point of having an ip address is so that things like rabbit and mysql can communicate over a different set of addresses than the guest network. Usually this would be done on a separate eth device (eth2) or vlan, but I was trying to keep<div class="im">
<br><br><blockquote type="cite"><div style="line-height:1.2;color:rgb(34,34,34);font-size:1em;font-family:Helvetica,arial,freesans,clean,sans-serif;border:none"><ul style="padding-left:2em;margin:1em 0px">
<li style="margin:1em 0px">In a better way, should we separate the nova-network/eth0 to the internet public switch for access the internet by all VMs. and the nova-compute/eth0 should be bind to a internal switch for admin access use. Is it right? </li>
</ul></div></blockquote></div><div>Ideally there are three eth devices / vlans a) public (for 99 adddresses in diagram) b) management (for 192 addresses in diagram) c) guest (for 10 addresses in diagram)</div><br><blockquote type="cite">
<div class="im"><div style="line-height:1.2;color:rgb(34,34,34);font-size:1em;font-family:Helvetica,arial,freesans,clean,sans-serif;border:none"><ul style="padding-left:2em;margin:1em 0px">
</ul><p style="margin:1em 0px"><img src="http://docs.openstack.org/trunk/openstack-compute/admin/content/figures/flatdchp-net.jpg"></p>
</div><div>-- <br><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse">Lei Zhang</span></div><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><br>
</span></div><div><font face="arial, sans-serif">Blog: <a href="http://jeffrey4l.github.com/" target="_blank">http://jeffrey4l.github.com</a></font></div><div>twitter/weibo: @jeffrey4l</div><br>
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</blockquote></div><br></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse">Lei Zhang</span></div><div><span style="font-family:arial,sans-serif;font-size:13px;border-collapse:collapse"><br>
</span></div><div><font face="arial, sans-serif">Blog: <a href="http://jeffrey4l.github.com" target="_blank">http://jeffrey4l.github.com</a></font></div><div>twitter/weibo: @jeffrey4l</div><br>
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