Re: [ovirt-users] More 4.1 Networking Questions

Monday, 10 April 2017

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Hi Everyone,

   Thanks for the help, answers below.

On 2017-04-10 05:27 AM, Sandro Bonazzola wrote:
...
 Adding Simone and Martin, replying inline.

 On Mon, Apr 10, 2017 at 10:16 AM, Ondrej Svoboda <osvoboda(a)redhat.com 
 <mailto:osvoboda@redhat.com>> wrote:

     Hello Charles,

     First, can you give us more information regarding the duplicated
     IPv6 addresses? Since you are going to reinstall the hosted
     engine, could you make sure that NetworkManager is disabled before
     adding the second vNIC (and perhaps even disable IPv6 and reboot
     as well, so we have a solid base and see what makes the difference)?
 I disabled NetworkManager on the hosts (systemctl disable NetworkManager 
; service NetworkManager stop) before doing the oVirt setup and rebooted 
to make sure that it didn't come back up.  Or are you referring to on 
the hosted engine VM?  I just removed and re-added the eth1 NIC in the 
hosted engine, and this is what showed up in dmesg:
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: [1af4:1000] type 00 class 
0x020000
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x10: [io 0x0000-0x001f]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x14: [mem 
0x00000000-0x00000fff]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x20: [mem 
0x00000000-0x00003fff 64bit pref]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x30: [mem 
0x00000000-0x0003ffff pref]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 6: assigned [mem 
0xc0000000-0xc003ffff pref]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 4: assigned [mem 
0xc0040000-0xc0043fff 64bit pref]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 1: assigned [mem 
0xc0044000-0xc0044fff]
[Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 0: assigned [io 
0x1000-0x101f]
[Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: enabling device 
(0000 -> 0003)
[Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: irq 35 for MSI/MSI-X
[Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: irq 36 for MSI/MSI-X
[Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: irq 37 for MSI/MSI-X
[Mon Apr 10 06:46:43 2017] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not 
ready
[Mon Apr 10 06:46:43 2017] IPv6: eth1: IPv6 duplicate address 
fe80::21a:4aff:fe16:151 detected!

Then when the network dropped I started getting these:

[Mon Apr 10 06:48:00 2017] IPv6: eth1: IPv6 duplicate address 
2001:410:e000:902:21a:4aff:fe16:151 detected!
[Mon Apr 10 06:48:00 2017] IPv6: eth1: IPv6 duplicate address 
2001:410:e000:902:21a:4aff:fe16:151 detected!
[Mon Apr 10 06:49:51 2017] IPv6: eth1: IPv6 duplicate address 
2001:410:e000:902:21a:4aff:fe16:151 detected!
[Mon Apr 10 06:51:40 2017] IPv6: eth1: IPv6 duplicate address 
2001:410:e000:902:21a:4aff:fe16:151 detected!

The network on eth1 would go down for a few seconds then come back up, 
but networking stays solid on eth0.  I disabled NetworkManager on the HE 
VM as well to see if that makes a difference.  I also disabled IPv6 with 
sysctl to see if that helps.  I'll install a Ubuntu VM on the cluster 
later today and see if it has a similar issue.

...

     What kind of documentation did you follow to install the hosted
     engine? Was it this page?
     https://www.ovirt.org/documentation/how-to/hosted-engine/
     <https://www.ovirt.org/documentation/how-to/hosted-engine/> If so,
     could you file a bug against VDSM networking and attach
     /var/log/vdsm/vdsm.log and supervdsm.log, and make sure they
     include the time period from adding the second vNIC to rebooting?

     Second, even the vNIC going missing after reboot looks like a bug
     to me. Even though eth1 does not exist in the VM, can you see it
     defined for the VM in the engine web GUI?

 If the HE vm configuration wasn't flushed to the OVF_STORE yet, it 
 make sense it disappeared on restart.
 The docs I used were 
https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.1/...

which someone on the list pointed me to last week as being more 
up-to-date than what was on the website (the docs on the website don't 
seem to mention that you need to put the HE on it's own datastore and 
look to be more geared towards bare-metal engine rather than the VM self 
hosted option.)

When I went back into the GUI and looked at the hosted engine config the 
second NIC was listed there, but it wasn't showing up in lspci on the 
VM.  I removed the NIC in the GUI and re-added it, and the device 
appeared again on the VM.  What is the proper way to "save" the state of 
the VM so that the OVF_STORE gets updated?  When I do anything on the HE 
VM that I want to test I just type "reboot", but that powers down the 
VM.  I then login to my host and run "hosted-engine --vm-start" which 
restarts it, but of course the last time I did that it restarted without 
the second NIC.

...

     The steps you took to install the hosted engine with regards to
     networking look good to me, but I believe Sandro (CC'ed) would be
     able to give more advice.

     Sandro, since we want to configure bonding, would you recommend to
     install the engine physically first, move it to a VM, according to
     the following method, and only then reconfigure networking?

https://www.ovirt.org/documentation/self-hosted/chap-Migrating_from_Bare_...

<https://www.ovirt.org/documentation/self-hosted/chap-Migrating_from_Bare_...

 I don't see why a diret HE deployment couldn't be done. Simone, Martin 
 can you help here?

     Thank you,
     Ondra

     On Mon, Apr 10, 2017 at 8:51 AM, Charles Tassell
     <ctassell(a)gmail.com <mailto:ctassell@gmail.com>> wrote:

         Hi Everyone,

           Okay, I'm again having problems with getting basic
         networking setup with oVirt 4.1  Here is my situation.  I have
         two servers I want to use to create an oVirt cluster, with two
         different networks.  My "public" network is a 1G link on
         device em1 connected to my Internet feed, and my "storage"
         network is a 10G link connected on device p5p1 to my file
         server.  Since I need to connect to my storage network in
         order to do the install, I selected p5p1 has the ovirtmgmt
         interface when installing the hosted engine. That worked fine,
         I got everything installed, so I used some ssh-proxy magic to
         connect to the web console and completed the install (setup a
         Storage domain and create a new network vmNet for VM
         networking and added em1 to it.)

           The problem was that when I added a second network device to
         the HostedEngine VM (so that I can connect to it from my
         public network) it would intermittently go down.  I did some
         digging and found some IPV6 errors in the dmesg (IPv6: eth1:
         IPv6 duplicate address 2001:410:e000:902:21a:4aff:fe16:151
         detected!) so I disabled IPv6 on both eth0 and eth1 in the
         HostedEngine and rebooted it.  The problem is that when I
         restarted the VM, the eth1 device was missing.

           So, my question is: Can I add a second NIC to the
         HostedEngine VM and make it stick, or will it be deleted
         whenever the engine VM is restarted? 

 When you change something in the HE Vm using the web ui, it has to be 
 saved also on the OVF_STORE to make it permanent for further reboot.
 Martin can you please elaborate here?

         Is there a better way to do what I'm trying to do, ie, should
         I setup ovirtmgmt on the public em1 interface, and then create
         the "storage" network after the fact for connecting to the
         datastores and such.  Is that even possible, or required?  I
         was thinking that it would be better for migrations and other
         management functions to happen on the faster 10G network, but
         if the HostedEngine doesn't need to be able to connect to the
         storage network maybe it's not worth the effort?

           Eventually I want to setup LACP on the storage network, but
         I had to wipe the servers and reinstall from scratch the last
         time I tried to set that up.  I was thinking that it was
         because I setup the bonding before installing oVirt, so I
         didn't do that this time.

           Here are my /etc/sysconfig/network-scripts/ifcfg-* files in
         case I did something wrong there (I'm more familiar with
         Debian/Ubuntu network setup than CentOS)

         ifcfg-eth0: (ovirtmgmt aka storage)
         ----------------
         BROADCAST=192.168.130.255
         NETMASK=255.255.255.0
         BOOTPROTO=static
         DEVICE=eth0
         IPADDR=192.168.130.179
         ONBOOT=yes
         DOMAIN=public.net <http://public.net>
         ZONE=public
         IPV6INIT=no

         ifcfg-eth1: (vmNet aka Internet)
         ----------------
         BROADCAST=192.168.1.255
         NETMASK=255.255.255.0
         BOOTPROTO=static
         DEVICE=eth1
         IPADDR=192.168.1.179
         GATEWAY=192.168.1.254
         ONBOOT=yes
         DNS1=192.168.1.1
         DNS2=192.168.1.2
         DOMAIN=public.net <http://public.net>
         ZONE=public
         IPV6INIT=no

         _______________________________________________
         Users mailing list
         Users(a)ovirt.org <mailto:Users@ovirt.org>
         http://lists.ovirt.org/mailman/listinfo/users
         <http://lists.ovirt.org/mailman/listinfo/users>

 -- 

 SANDRO BONAZZOLA

 ASSOCIATE MANAGER, SOFTWARE ENGINEERING, EMEA ENG VIRTUALIZATION R&D

 Red Hat EMEA <https://www.redhat.com/>

 <https://red.ht/sig> 	
 TRIED. TESTED. TRUSTED. <https://redhat.com/trusted>

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    <div class="moz-cite-prefix">Hi Everyone,<br>
      <br>
        Thanks for the help, answers below.<br>
      <br>
      On 2017-04-10 05:27 AM, Sandro Bonazzola wrote:<br>
    </div>
    <blockquote
cite="mid:CAPQRNT=w+P46u+Qter3-6yKPVqYogoErLWB66keLBQt7Up0KqA@mail.gmail.com"
      type="cite">
      <div dir="ltr">Adding Simone and Martin, replying inline.<br>
        <div class="gmail_extra"><br>
          <div class="gmail_quote">On Mon, Apr 10, 2017 at 10:16 AM,
            Ondrej Svoboda <span dir="ltr">&lt;<a
                moz-do-not-send="true"
href="mailto:osvoboda@redhat.com"

target=&quot;_blank&quot;&gt;osvoboda(a)redhat.com&lt;/a&gt;&amp;gt;&lt;/span&gt;
            wrote:<br>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div dir="ltr">
                <div>Hello Charles,<br>
                  <br>
                </div>
                <div>First, can you give us more information regarding
                  the duplicated IPv6 addresses? Since you are going to
                  reinstall the hosted engine, could you make sure that
                  NetworkManager is disabled before adding the second
                  vNIC (and perhaps even disable IPv6 and reboot as
                  well, so we have a solid base and see what makes the
                  difference)?<br>
                </div>
              </div>
            </blockquote>
          </div>
        </div>
      </div>
    </blockquote>
    I disabled NetworkManager on the hosts (systemctl disable
    NetworkManager ; service NetworkManager stop) before doing the oVirt
    setup and rebooted to make sure that it didn't come back up.  Or are
    you referring to on the hosted engine VM?  I just removed and
    re-added the eth1 NIC in the hosted engine, and this is what showed
    up in dmesg:<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: [1af4:1000] type 00
    class 0x020000<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x10: [io 
    0x0000-0x001f]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x14: [mem
    0x00000000-0x00000fff]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x20: [mem
    0x00000000-0x00003fff 64bit pref]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: reg 0x30: [mem
    0x00000000-0x0003ffff pref]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 6: assigned [mem
    0xc0000000-0xc003ffff pref]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 4: assigned [mem
    0xc0040000-0xc0043fff 64bit pref]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 1: assigned [mem
    0xc0044000-0xc0044fff]<br>
    [Mon Apr 10 06:46:43 2017] pci 0000:00:08.0: BAR 0: assigned [io 
    0x1000-0x101f]<br>
    [Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: enabling device
    (0000 -&gt; 0003)<br>
    [Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: irq 35 for
    MSI/MSI-X<br>
    [Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: irq 36 for
    MSI/MSI-X<br>
    [Mon Apr 10 06:46:43 2017] virtio-pci 0000:00:08.0: irq 37 for
    MSI/MSI-X<br>
    [Mon Apr 10 06:46:43 2017] IPv6: ADDRCONF(NETDEV_UP): eth1: link is
    not ready<br>
    [Mon Apr 10 06:46:43 2017] IPv6: eth1: IPv6 duplicate address
    fe80::21a:4aff:fe16:151 detected!<br>
    <br>
    Then when the network dropped I started getting these:<br>
    <br>
    [Mon Apr 10 06:48:00 2017] IPv6: eth1: IPv6 duplicate address
    2001:410:e000:902:21a:4aff:fe16:151 detected!<br>
    [Mon Apr 10 06:48:00 2017] IPv6: eth1: IPv6 duplicate address
    2001:410:e000:902:21a:4aff:fe16:151 detected!<br>
    [Mon Apr 10 06:49:51 2017] IPv6: eth1: IPv6 duplicate address
    2001:410:e000:902:21a:4aff:fe16:151 detected!<br>
    [Mon Apr 10 06:51:40 2017] IPv6: eth1: IPv6 duplicate address
    2001:410:e000:902:21a:4aff:fe16:151 detected!<br>
    <br>
    The network on eth1 would go down for a few seconds then come back
    up, but networking stays solid on eth0.  I disabled NetworkManager
    on the HE VM as well to see if that makes a difference.  I also
    disabled IPv6 with sysctl to see if that helps.  I'll install a
    Ubuntu VM on the cluster later today and see if it has a similar
    issue.<br>
    <br>
    <br>
    <blockquote
cite="mid:CAPQRNT=w+P46u+Qter3-6yKPVqYogoErLWB66keLBQt7Up0KqA@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra">
          <div class="gmail_quote">
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div dir="ltr">
                <div><br>
                  What kind of documentation did you follow to install
                  the hosted engine? Was it this page? <a
                    moz-do-not-send="true"

href="https://www.ovirt.org/documentation/how-to/hosted-engine/"

target="_blank">https://www.ovirt.org/<wbr>documentati...
                  If so, could you file a bug against VDSM networking
                  and attach /var/log/vdsm/vdsm.log and supervdsm.log,
                  and make sure they include the time period from adding
                  the second vNIC to rebooting?<br>
                  <br>
                </div>
                <div>Second, even the vNIC going missing after reboot
                  looks like a bug to me. Even though eth1 does not
                  exist in the VM, can you see it defined for the VM in
                  the engine web GUI?<br>
                </div>
              </div>
            </blockquote>
            <div><br>
            </div>
            <div>If the HE vm configuration wasn't flushed to the
              OVF_STORE yet, it make sense it disappeared on restart.</div>
            <div><br>
            </div>
            <div> </div>
          </div>
        </div>
      </div>
    </blockquote>
    The docs I used were
<a class="moz-txt-link-freetext"
href="https://access.redhat.com/documentation/en-us/red_hat_virtuali...
    which someone on the list pointed me to last week as being more
    up-to-date than what was on the website (the docs on the website
    don't seem to mention that you need to put the HE on it's own
    datastore and look to be more geared towards bare-metal engine
    rather than the VM self hosted option.)<br>
    <br>
    When I went back into the GUI and looked at the hosted engine config
    the second NIC was listed there, but it wasn't showing up in lspci
    on the VM.  I removed the NIC in the GUI and re-added it, and the
    device appeared again on the VM.  What is the proper way to "save"
    the state of the VM so that the OVF_STORE gets updated?  When I do
    anything on the HE VM that I want to test I just type "reboot", but
    that powers down the VM.  I then login to my host and run
    "hosted-engine --vm-start" which restarts it, but of course the last
    time I did that it restarted without the second NIC.<br>
    <br>
    <blockquote
cite="mid:CAPQRNT=w+P46u+Qter3-6yKPVqYogoErLWB66keLBQt7Up0KqA@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div class="gmail_extra">
          <div class="gmail_quote">
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div dir="ltr">
                <div><br>
                </div>
                <div>The steps you took to install the hosted engine
                  with regards to networking look good to me, but I
                  believe Sandro (CC'ed) would be able to give more
                  advice.<br>
                  <br>
                  Sandro, since we want to configure bonding, would you
                  recommend to install the engine physically first, move
                  it to a VM, according to the following method, and
                  only then reconfigure networking? <a
                    moz-do-not-send="true"
href="https://www.ovirt.org/documentation/self-hosted/chap-Migrating...

target="_blank">https://www.ovirt.org/<wbr>documentati...
              </div>
            </blockquote>
            <div><br>
            </div>
            <div><br>
            </div>
            <div>I don't see why a diret HE deployment couldn't be done.
              Simone, Martin can you help here?</div>
            <div> </div>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div dir="ltr">
                <div><br>
                  <br>
                </div>
                <div>Thank you,<br>
                </div>
                <div>Ondra<br>
                </div>
              </div>
              <div class="HOEnZb">
                <div class="h5">
                  <div class="gmail_extra"><br>
                    <div class="gmail_quote">On Mon, Apr 10, 2017 at
                      8:51 AM, Charles Tassell <span
dir="ltr">&lt;<a
                          moz-do-not-send="true"
                          href="mailto:ctassell@gmail.com"

target=&quot;_blank&quot;&gt;ctassell(a)gmail.com&lt;/a&gt;&amp;gt;&lt;/span&gt;
                      wrote:<br>
                      <blockquote class="gmail_quote" style="margin:0 0
                        0 .8ex;border-left:1px #ccc
                        solid;padding-left:1ex">Hi Everyone,<br>
                        <br>
                          Okay, I'm again having problems with getting
                        basic networking setup with oVirt 4.1  Here is
                        my situation.  I have two servers I want to use
                        to create an oVirt cluster, with two different
                        networks.  My "public" network is a 1G link on
                        device em1 connected to my Internet feed, and my
                        "storage" network is a 10G link connected on
                        device p5p1 to my file server.  Since I need to
                        connect to my storage network in order to do the
                        install, I selected p5p1 has the ovirtmgmt
                        interface when installing the hosted engine. 
                        That worked fine, I got everything installed, so
                        I used some ssh-proxy magic to connect to the
                        web console and completed the install (setup a
                        Storage domain and create a new network vmNet
                        for VM networking and added em1 to it.)<br>
                        <br>
                          The problem was that when I added a second
                        network device to the HostedEngine VM (so that I
                        can connect to it from my public network) it
                        would intermittently go down.  I did some
                        digging and found some IPV6 errors in the dmesg
                        (IPv6: eth1: IPv6 duplicate address
                        2001:410:e000:902:21a:4aff:fe1<wbr>6:151
                        detected!) so I disabled IPv6 on both eth0 and
                        eth1 in the HostedEngine and rebooted it.  The
                        problem is that when I restarted the VM, the
                        eth1 device was missing.<br>
                        <br>
                          So, my question is: Can I add a second NIC to
                        the HostedEngine VM and make it stick, or will
                        it be deleted whenever the engine VM is
                        restarted?  </blockquote>
                    </div>
                  </div>
                </div>
              </div>
            </blockquote>
            <div><br>
            </div>
            <div>When you change something in the HE Vm using the web
              ui, it has to be saved also on the OVF_STORE to make it
              permanent for further reboot.</div>
            <div>Martin can you please elaborate here?</div>
            <div><br>
            </div>
            <div><br>
            </div>
            <div> </div>
            <blockquote class="gmail_quote" style="margin:0 0 0
              .8ex;border-left:1px #ccc solid;padding-left:1ex">
              <div class="HOEnZb">
                <div class="h5">
                  <div class="gmail_extra">
                    <div class="gmail_quote">
                      <blockquote class="gmail_quote" style="margin:0 0
                        0 .8ex;border-left:1px #ccc
                        solid;padding-left:1ex">Is there a better way to
                        do what I'm trying to do, ie, should I setup
                        ovirtmgmt on the public em1 interface, and then
                        create the "storage" network after the fact for
                        connecting to the datastores and such.  Is that
                        even possible, or required?  I was thinking that
                        it would be better for migrations and other
                        management functions to happen on the faster 10G
                        network, but if the HostedEngine doesn't need to
                        be able to connect to the storage network maybe
                        it's not worth the effort?<br>
                        <br>
                          Eventually I want to setup LACP on the storage
                        network, but I had to wipe the servers and
                        reinstall from scratch the last time I tried to
                        set that up.  I was thinking that it was because
                        I setup the bonding before installing oVirt, so
                        I didn't do that this time.<br>
                        <br>
                          Here are my /etc/sysconfig/network-scripts<wbr>/ifcfg-*
                        files in case I did something wrong there (I'm
                        more familiar with Debian/Ubuntu network setup
                        than CentOS)<br>
                        <br>
                        ifcfg-eth0: (ovirtmgmt aka storage)<br>
                        ----------------<br>
                        BROADCAST=192.168.130.255<br>
                        NETMASK=255.255.255.0<br>
                        BOOTPROTO=static<br>
                        DEVICE=eth0<br>
                        IPADDR=192.168.130.179<br>
                        ONBOOT=yes<br>
                        DOMAIN=<a moz-do-not-send="true"
                          href="http://public.net" rel="noreferrer"
                          target="_blank">public.net</a><br>
                        ZONE=public<br>
                        IPV6INIT=no<br>
                        <br>
                        <br>
                        ifcfg-eth1: (vmNet aka Internet)<br>
                        ----------------<br>
                        BROADCAST=192.168.1.255<br>
                        NETMASK=255.255.255.0<br>
                        BOOTPROTO=static<br>
                        DEVICE=eth1<br>
                        IPADDR=192.168.1.179<br>
                        GATEWAY=192.168.1.254<br>
                        ONBOOT=yes<br>
                        DNS1=192.168.1.1<br>
                        DNS2=192.168.1.2<br>
                        DOMAIN=<a moz-do-not-send="true"
                          href="http://public.net" rel="noreferrer"
                          target="_blank">public.net</a><br>
                        ZONE=public<br>
                        IPV6INIT=no<br>
                        <br>

______________________________<wbr>_________________<br>
                        Users mailing list<br>
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                          href="mailto:Users@ovirt.org"
target=&quot;_blank&quot;&gt;Users(a)ovirt.org&lt;/a&gt;&lt;br&gt;
                        <a moz-do-not-send="true"
                          href="http://lists.ovirt.org/mailman/listinfo/users"
                          rel="noreferrer"
target="_blank">http://lists.ovirt.org/mailman<wbr>/li...
                      </blockquote>
                    </div>
                    <br>
                  </div>
                </div>
              </div>
            </blockquote>
          </div>
          <br>
          <br clear="all">
          <div><br>
          </div>
          -- <br>
          <div class="gmail_signature"
data-smartmail="gmail_signature">
            <div dir="ltr">
              <div>
                <div dir="ltr">
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                        <p
style="color:rgb(0,0,0);font-family:overpass,sans-serif;font-weight:bold;margin:0px;padding:0px;font-size:14px;text-transform:uppercase"><span>SANDRO</span> <span>BONAZZOLA</span></p>
                        <p
style="color:rgb(0,0,0);font-family:overpass,sans-serif;font-size:10px;margin:0px
                          0px 4px;text-transform:uppercase"><span>ASSOCIATE
                            MANAGER, SOFTWARE ENGINEERING, EMEA ENG
                            VIRTUALIZATION R&amp;D</span></p>
                        <p
style="font-family:overpass,sans-serif;margin:0px;font-size:10px;color:rgb(153,153,153)"><a
                            moz-do-not-send="true"
                            href="https://www.redhat.com/"
                            style="color:rgb(0,136,206);margin:0px"
                            target="_blank">Red
Hat <span>EMEA</span></a></p>
                        <table
style="color:rgb(0,0,0);font-family:overpass,sans-serif;font-size:medium"
                          border="0">
                          <tbody>
                            <tr>
                              <td width="100px"><a
                                  moz-do-not-send="true"
                                  href="https://red.ht/sig"
                                  target="_blank"><img
                                    moz-do-not-send="true"
src="https://www.redhat.com/profiles/rh/themes/redhatdotcom/img/logo...
                                    height="auto"
width="90"></a></td>
                              <td style="font-size:10px">
                                <div><a moz-do-not-send="true"
                                    href="https://redhat.com/trusted"
                                    style="color:rgb(204,0,0);font-weight:bold"
                                    target="_blank">TRIED. TESTED.
                                    TRUSTED.</a></div>
                              </td>
                            </tr>
                          </tbody>
                        </table>
                      </div>
                    </div>
                  </div>
                </div>
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Re: [ovirt-users] More 4.1 Networking Questions