<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="GENERATOR" content="GtkHTML/4.4.4">
</head>
<body>
tis 2013-01-08 klockan 01:18 -0500 skrev Yair Zaslavsky:
<blockquote type="CITE"><font color="#000000">Keith summed things quite right as far as I know (I did not know about the range allocated to Qumranet)</font>
</blockquote>
<blockquote type="CITE"><font color="#000000">From code perspective - We have a MacPoolManager infrastructure which holds a pool of Mac addresses, and per deletion of VM, the mac address is returned to the pool.</font><br>
</blockquote>
Which means that if you set up two oVirt systems independantly; one for production and one for testing, you will get collisions?<br>
<br>
/Karli<br>
<br>
<blockquote type="CITE"><br>
<br>
</blockquote>
<blockquote type="CITE"><br>
<br>
<hr align="center">
<br>
<blockquote><b><font color="#000000">From: </font></b><font color="#000000">"Keith Robertson" <kroberts@redhat.com></font><br>
<b><font color="#000000">To: </font></b><font color="#000000">"Jonathan Horne" <jhorne@skopos.us></font><br>
<b><font color="#000000">Cc: </font></b><font color="#000000">"users" <users@ovirt.org></font><br>
<b><font color="#000000">Sent: </font></b><font color="#000000">Tuesday, January 8, 2013 5:15:04 AM</font><br>
<b><font color="#000000">Subject: </font></b><font color="#000000">Re: [Users] mac address re-use</font><br>
<br>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote><font color="#000000">On 01/07/2013 05:22 PM, Jonathan Horne wrote:</font><br>
<br>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote>
<blockquote><font color="#000000">my 3.2 install seems to be reusing mac address of formerly-deleted guests. is this the normal behavior, and or can i turn this off? i would prefer to have a unique mac address for each new VM created.</font>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote>
<blockquote><br>
<br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote>
<blockquote><font color="#000000">thanks,</font> </blockquote>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote>
<blockquote><font color="#000000">jonathan</font> </blockquote>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote>
<blockquote><br>
</blockquote>
</blockquote>
</blockquote>
<blockquote type="CITE">
<blockquote>
<blockquote><br>
<hr align="center">
<br>
<font size="1"><font color="#bebebe">This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind
SKOPOS to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose.</font></font><font color="#000000">
</font><br>
<br>
<pre>
<font color="#000000">_______________________________________________</font>
<font color="#000000">Users mailing list</font>
<font color="#000000"><a href="mailto:Users@ovirt.org">Users@ovirt.org</a></font>
<font color="#000000"><a href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a></font>
</pre>
</blockquote>
<font color="#000000">I believe re-use is intentional. I suspect oVirt uses the IEEE [1] space allocated to Qumranet and that space is relatively small. There were previous discussions on the list regarding the probability of collisions/exhaustion, IIRC.
In any case, you want re-use to prevent the possibility of exhaustion and because a program shouldn't just go randomly creating addresses from any available OUI block.</font><br>
<br>
<font color="#000000">Cheers,</font><br>
<font color="#000000">Keithן</font><br>
<br>
<br>
<br>
<br>
<font color="#000000">[1] <a href="http://standards.ieee.org/develop/regauth/oui/public.html">
http://standards.ieee.org/develop/regauth/oui/public.html</a></font><br>
<br>
<font color="#000000">_______________________________________________</font><br>
<font color="#000000">Users mailing list</font><br>
<font color="#000000">Users@ovirt.org</font><br>
<font color="#000000">http://lists.ovirt.org/mailman/listinfo/users</font><br>
</blockquote>
<br>
<br>
</blockquote>
<br>
</body>
</html>