4:22 p.m.
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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 t=
o have a unique mac address for each new VM created.
thanks,
jonathan
________________________________
This is a PRIVATE message. If you are not the intended recipient, please de=
lete without copying and kindly advise us by e-mail of the mistake in deliv=
ery. NOTE: Regardless of content, this e-mail shall not operate to bind SKO=
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<html <head <meta http-equiv=3D"Content-Type"
content=3D"text/html; charset=3Dus-ascii"=
</head <body
style=3D"color:rgb(0,0,0); font-size:14px; font-family:Calibri,sans-s=
erif; word-wrap:break-word" <div
<div <div>my 3.2 install seems to
be reusing mac address of formerly-deleted gue=
sts. 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.</div <div><br
</div <div>thanks,</div <div>jonathan</div
<div <div></div </div
</div </div <br <hr <font
color=3D"Gray" face=3D"Arial" size=3D"1">This is a
PRIVATE message. I=
f you are not the intended recipient, please delete without copying and kin=
dly advise us by e-mail of the mistake in delivery. NOTE: Regardless of con=
tent, this e-mail shall not operate to
bind SKOPOS to any order or other contract unless pursuant to explicit wri=
tten agreement or government initiative expressly permitting the use of e-m=
ail for such purpose.</font </body </html
--_000_9BE6F493F83A594DA60C45E6A09DC5AC01709931AUSP01DAG0201co_--
9:15 p.m.
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--------------040105080202010608020001
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On 01/07/2013 05:22 PM, Jonathan Horne wrote:
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.
thanks,
jonathan
------------------------------------------------------------------------
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.
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
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.
Cheers,
Keith
[1] http://standards.ieee.org/develop/regauth/oui/public.html
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<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 01/07/2013 05:22 PM, Jonathan Horne
wrote:<br>
</div>
<blockquote
cite="mid:9BE6F493F83A594DA60C45E6A09DC5AC01709931@AUSP01DAG0201.collaborationhost.net"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=ISO-8859-1">
<div>
<div>
<div>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.</div>
<div><br>
</div>
<div>thanks,</div>
<div>jonathan</div>
<div>
</div>
</div>
</div>
<br>
<hr>
<font color="Gray" face="Arial" size="1">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>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Users mailing list
<a class="moz-txt-link-abbreviated"
href="mailto:Users@ovirt.org">Users@ovirt.org</a>
<a class="moz-txt-link-freetext"
href="http://lists.ovirt.org/mailman/listinfo/users">http://...
</pre>
</blockquote>
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.<br>
<br>
Cheers,<br>
Keith<br>
<br>
[1]
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
<a
href="http://standards.ieee.org/develop/regauth/oui/public.html"...
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
</body>
</html>
--------------040105080202010608020001--
12:18 a.m.
------=_Part_954104_2040875929.1357625912339
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Keith summed things quite right as far as I know (I did not know about the =
range allocated to Qumranet)=20
From code perspective - We have a MacPoolManager infrastructure which
holds=
a pool of Mac addresses, and per deletion of VM, the mac address is return=
ed to the pool.=20
----- Original Message -----
From: "Keith Robertson" <kroberts(a)redhat.com>
To: "Jonathan Horne" <jhorne(a)skopos.us>
Cc: "users" <users(a)ovirt.org>
Sent: Tuesday, January 8, 2013 5:15:04 AM
Subject: Re: [Users] mac address re-use
On 01/07/2013 05:22 PM, Jonathan Horne wrote:
> 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.
=20
> thanks,
=20
> jonathan
=20
> 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.
=20
> _______________________________________________
=20
> Users mailing list Users(a)ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users
=20
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.
Cheers,
Keith=D7=9F
_______________________________________________
Users mailing list
Users(a)ovirt.org
http://lists.ovirt.org/mailman/listinfo/users
------=_Part_954104_2040875929.1357625912339
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Content-Transfer-Encoding: quoted-printable
<html><head><style type=3D'text/css'>p { margin: 0;
}</style></head><body><=
div style=3D'font-family: times new roman,new york,times,serif; font-size: =
12pt; color: #000000'>Keith summed things quite right as far as I know (I d=
id not know about the range allocated to Qumranet)<div>From code perspectiv=
e - We have a MacPoolManager infrastructure which holds a pool of Mac addre=
sses, and per deletion of VM, the mac address is returned to the pool.</div=
<div><br></div><div><br><br><hr
id=3D"zwchr"><blockquote style=3D"border-l=
eft:2px solid
rgb(16, 16, 255);margin-left:5px;padding-left:5px;color:#000;=
font-weight:normal;font-style:normal;text-decoration:none;font-family:Helve=
tica,Arial,sans-serif;font-size:12pt;" id=3D"DWT607"><b>From:
</b>"Keith Ro=
bertson" &lt;kroberts(a)redhat.com&gt;<br><b>To:
</b>"Jonathan Horne" <jho=
rne(a)skopos.us&gt;<br><b>Cc: </b>"users"
<users@ovirt.org><br><b>Sent:=
</b>Tuesday, January 8, 2013 5:15:04 AM<br><b>Subject: </b>Re:
[Users] mac=
address re-use<br><br>
=20
=20
=20
=20
<div class=3D"moz-cite-prefix">On 01/07/2013 05:22 PM, Jonathan Horne
wrote:<br>
</div>
<blockquote cite=3D"mid:9BE6F493F83A594DA60C45E6A09DC5AC01709931@AUSP01=
DAG0201.collaborationhost.net">
=20
<div>
<div>
<div>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 m=
ac
address for each new VM created.</div>
<div><br>
</div>
<div>thanks,</div>
<div>jonathan</div>
<div>
</div>
</div>
</div>
<br>
<hr>
<font color=3D"Gray" face=3D"Arial"
size=3D"1">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>
<br>
<fieldset class=3D"mimeAttachmentHeader"></fieldset>
<br>
<pre>_______________________________________________
Users mailing list
<a class=3D"moz-txt-link-abbreviated"
href=3D"mailto:Users@ovirt.org" targe=
t=3D"_blank">Users(a)ovirt.org</a>
<a class=3D"moz-txt-link-freetext"
href=3D"http://lists.ovirt.org/mailman/l=
istinfo/users"
target=3D"_blank">http://lists.ovirt.org/mailman/listinfo/us=
ers</a>
</pre>
</blockquote>
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.<br>
<br>
Cheers,<br>
Keith=D7=9F<br><br><br><br>
<br>
[1]
=20
<a href=3D"http://standards.ieee.org/develop/regauth/oui/public.html" t=
arget=3D"_blank">http://standards.ieee.org/develop/regauth/o...
/a><br>
=20
=20
<br>_______________________________________________<br>Users mailing
list<b=
r>Users@ovirt.org<br>http://lists.ovirt.org/mailman/listinfo/users<br></blo=
ckquote><br></div></div></body></html>
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--_000_5F9E965F5A80BC468BE5F40576769F09101FE9C0exchange21_--
12:52 a.m.
------=_Part_961824_554760252.1357627942039
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Content-Transfer-Encoding: quoted-printable
You can always set a new range of mac addresses using -=20
engine-config -g MacPoolRanges (to see the current range)=20
and then engine-config -s MacPoolRanges=3D<new range>=20
----- Original Message -----
From: "Karli Sj=C3=B6berg" <Karli.Sjoberg(a)slu.se>
To: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
Cc: "Keith Robertson" <kroberts(a)redhat.com>, "users"
<users(a)ovirt.org>
Sent: Tuesday, January 8, 2013 8:29:49 AM
Subject: Re: [Users] mac address re-use
tis 2013-01-08 klockan 01:18 -0500 skrev Yair Zaslavsky:
> Keith summed things quite right as far as I know (I did not know
> about the range allocated to Qumranet)
=20
> 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.
=20
Which means that if you set up two oVirt systems independantly; one
for production and one for testing, you will get collisions?
/Karli
> > From: "Keith Robertson"
<kroberts(a)redhat.com>
>=20
=20
> > To: "Jonathan Horne" <jhorne(a)skopos.us>
>=20
=20
> > Cc: "users" <users(a)ovirt.org>
>=20
=20
> > Sent: Tuesday, January 8, 2013 5:15:04 AM
>=20
=20
> > Subject: Re: [Users] mac address re-use
>=20
=20
> > On 01/07/2013 05:22 PM, Jonathan Horne wrote:
>=20
=20
> > > 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.
> >=20
>=20
=20
> > > thanks,
> >=20
>=20
=20
> > > jonathan
> >=20
>=20
=20
> > > 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.
> >=20
>=20
=20
> > > _______________________________________________ Users
mailing
> > > list
> > > Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users
> >=20
>=20
=20
> > 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.
>=20
=20
> > Cheers,
>=20
=20
> > Keith=D7=9F
>=20
=20
> > [1]
http://standards.ieee.org/develop/regauth/oui/public.html
>=20
=20
> > _______________________________________________
>=20
=20
> > Users mailing list
>=20
=20
> > Users(a)ovirt.org
>=20
=20
> > http://lists.ovirt.org/mailman/listinfo/users
>=20
=20
------=_Part_961824_554760252.1357627942039
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: quoted-printable
<html><head><style type=3D'text/css'>p { margin: 0;
}</style></head><body><=
div style=3D'font-family: times new roman,new york,times,serif; font-size: =
12pt; color: #000000'>You can always set a new range of mac addresses using=
-<div><br></div><div><div>engine-config -g MacPoolRanges
(to see the curre=
nt range)</div><div><br></div><div>and then engine-config -s
MacPoolRanges=
=3D<new
range></div><div><br></div><div><br></div><div><br></div><br>=
<hr id=3D"zwchr"><blockquote style=3D"border-left:2px solid
rgb(16, 16, 255=
);margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style=
:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-si=
ze:12pt;"><b>From: </b>"Karli Sj=C3=B6berg"
&lt;Karli.Sjoberg(a)slu.se&gt;<br=
<b>To: </b>"Yair Zaslavsky"
&lt;yzaslavs(a)redhat.com&gt;<br><b>Cc: </b>"Kei=
th
Robertson" &lt;kroberts(a)redhat.com&gt;, "users"
&lt;users(a)ovirt.org&gt;<=
br><b>Sent: </b>Tuesday, January 8, 2013 8:29:49
AM<br><b>Subject: </b>Re: =
[Users] mac address re-use<br<br>
tis 2013-01-08 klockan 01:18 -0500 skrev Yair Zaslavsky:
<blockquote><font color=3D"#000000">Keith summed things quite right
as far =
as I know (I did not know about the range allocated to Qumranet)</font>
</blockquote>
<blockquote><font color=3D"#000000">From code perspective - We have
a MacPo=
olManager infrastructure which holds a pool of Mac addresses, and per delet=
ion 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 pro=
duction and one for testing, you will get collisions?<br>
<br>
/Karli<br>
<br>
<blockquote<br>
<br>
</blockquote>
<blockquote<br>
<br>
<hr align=3D"center">
<br>
<blockquote><b><font color=3D"#000000">From:
</font></b><font color=3D"#000=
000">"Keith Robertson" &lt;kroberts(a)redhat.com&gt;</font<br>
<b><font color=3D"#000000">To:
</font></b><font color=3D"#000000">"Jonathan=
Horne" &lt;jhorne(a)skopos.us&gt;</font<br>
<b><font color=3D"#000000">Cc: </font></b><font
color=3D"#000000">"users" &=
lt;users(a)ovirt.org&gt;</font<br>
<b><font color=3D"#000000">Sent:
</font></b><font color=3D"#000000">Tuesday=
, January 8, 2013 5:15:04 AM</font<br>
<b><font color=3D"#000000">Subject:
</font></b><font color=3D"#000000">Re: =
[Users] mac address re-use</font<br>
<br>
</blockquote>
</blockquote>
<blockquote>
<blockquote><font color=3D"#000000">On 01/07/2013 05:22 PM, Jonathan
Horne =
wrote:</font<br>
<br>
</blockquote>
</blockquote>
<blockquote>
<blockquote>
<blockquote><font color=3D"#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 f=
or each new VM created.</font>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<blockquote>
<blockquote<br>
<br>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<blockquote>
<blockquote><font color=3D"#000000">thanks,</font>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<blockquote>
<blockquote><font color=3D"#000000">jonathan</font>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<blockquote>
<blockquote<br>
</blockquote>
</blockquote>
</blockquote>
<blockquote>
<blockquote>
<blockquote<br>
<hr
align=3D"center">
<br>
<font size=3D"1"><font color=3D"#bebebe">This is a PRIVATE
message. If you =
are not the intended recipient, please delete without copying and kindly ad=
vise 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 f=
or such purpose.</font></font><font color=3D"#000000">
</font<br>
<br>
<pre><font
color=3D"#000000">______________________________________________=
_</font>
<font color=3D"#000000">Users mailing list</font>
<font color=3D"#000000"><a href=3D"mailto:Users@ovirt.org"
target=3D"_blank=
">Users(a)ovirt.org</a></font>
<font color=3D"#000000"><a
href=3D"http://lists.ovirt.org/mailman/listinfo/=
users"
target=3D"_blank">http://lists.ovirt.org/mailman/listinfo/us...
/font>
</pre>
</blockquote>
<font color=3D"#000000">I believe re-use is intentional. I
suspect oV=
irt uses the IEEE [1] space allocated to Qumranet and that space is relativ=
ely 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 av=
ailable OUI block.</font<br>
<br>
<font color=3D"#000000">Cheers,</font<br>
<font color=3D"#000000">Keith=D7=9F</font<br>
<br>
<br>
<br>
<br>
<font color=3D"#000000">[1] <a
href=3D"http://standards.ieee.org/develop/re=
gauth/oui/public.html" target=3D"_blank">
http://standards.ieee.org/develop/regauth/oui/public.html</a></font<br>
<br>
<font
color=3D"#000000">_______________________________________________</fo=
nt<br>
<font color=3D"#000000">Users mailing
list</font<br>
<font
color=3D"#000000">Users(a)ovirt.org</font<br>
<font
color=3D"#000000">http://lists.ovirt.org/mailman/listinfo/us...
<br>
</blockquote>
<br>
<br>
</blockquote>
<br>
</blockquote><br></div></div></body></html>
------=_Part_961824_554760252.1357627942039--
2:49 a.m.
On Tue, 8 Jan 2013 06:29:49 +0000
Karli Sjöberg <Karli.Sjoberg(a)slu.se> wrote:
tis 2013-01-08 klockan 01:18 -0500 skrev Yair Zaslavsky:
Keith summed things quite right as far as I know (I did not know
about the range allocated to Qumranet) 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. Which means that if you set up two oVirt systems independantly;
one for production and one for testing, you will get collisions?
^^^ No, VLANs please!
If you need equal IP/ethernet setup while using 2 ovirt-engines, check
VRF (OpenBSD can do it).
jbelka
3:35 a.m.
On 01/08/2013 08:29 AM, Karli Sjöberg wrote:
Which means that if you set up two oVirt systems independantly; one
for
production and one for testing, you will get collisions?
by default, the installer allocates a range of 255 mac addresses based
on 2nd/3rd parts of engine ip address.
so setting two engines on same 255.255.255.0 subnet requires to change
the config to avoid mac conflicts.
6:14 a.m.
On 01/08/2013 01:29 AM, Karli Sjöberg wrote:
>
Which means that if you set up two oVirt systems independantly; one
for production and one for testing, you will get collisions?
/Karli
If they are truly "independent" then they shd be on different
subnets;
hence, there shdn't be collisions. MAC addresses don't propagate beyond
the router.
Keith
4148
days inactive
4149
days old
7 comments
6 participants
participants (6)
-
Itamar Heim -
Jiri Belka -
Jonathan Horne -
Karli Sjöberg -
Keith Robertson -
Yair Zaslavsky