Opennebula recreates all necessary interfaces on demand.
It means that, once a virtual network uses .1Q, it will create the bridge to route the traffig and map the VLAN on the physical interface. Dependenig on your distribution, you may need to specify the path of the bridge control binary (brctl). On Red Hat derivative, it is located on /usr/sbin/brctl; whereas the default location should be /sbin/brctl. You can either tweak the network scripts to look for the correct path or make a link.
On 30/11/12 13:58, 于长江 wrote:
1. First, I create a vm on computer14, i saw network interfaces below:
[oneadmin@computer14 ~]$ ifconfig
eth0      Link encap:Ethernet  HWaddr E8:39:35:18:A1:60
          inet addr:10.72.24.216  Bcast:10.72.24.255  Mask:255.255.255.0
          inet6 addr: fe80::ea39:35ff:fe18:a160/64 Scope:Link
          UP BROADCAST RUNNING PROMISC MULTICAST  MTU:1500  Metric:1
          RX packets:21587155 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8407735 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:22927887802 (21.3 GiB)  TX bytes:667899749 (636.9 MiB)
          Memory:fbe60000-fbe80000
eth0.100  Link encap:Ethernet  HWaddr E8:39:35:18:A1:60
          inet6 addr: fe80::ea39:35ff:fe18:a160/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:16672 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 b)  TX bytes:784568 (766.1 KiB)
onebr100  Link encap:Ethernet  HWaddr E8:39:35:18:A1:60
          inet6 addr: fe80::acb0:e4ff:fe95:6f08/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:13746 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:398936 (389.5 KiB)  TX bytes:468 (468.0 b)
vnet0     Link encap:Ethernet  HWaddr FE:00:DD:67:22:02
          inet6 addr: fe80::fc00:ddff:fe67:2202/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:0 (0.0 b)  TX bytes:732 (732.0 b)
2. Then, i reboot computer14
[oneadmin@computer14 ~]$ sudo shutdown -r now
3. After this operation,i saw vconfig network interface has gone (eth0.100, onebr100)
[oneadmin@computer14 ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr E8:39:35:18:A1:60
          inet addr:10.72.24.216  Bcast:10.72.24.255  Mask:255.255.255.0
          inet6 addr: fe80::ea39:35ff:fe18:a160/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:122 errors:0 dropped:0 overruns:0 frame:0
          TX packets:102 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:13317 (13.0 KiB)  TX bytes:12829 (12.5 KiB)
          Memory:fbe60000-fbe80000
4. When I create that vm, error occurred below:
[root@computer14 images]# pwd
/one_images/25/images
[root@computer14 images]# ls
deployment.0  disk.0  disk.1
[root@computer14 images]# virsh create deployment.0
error: Failed to create domain from deployment.0
error: Failed to add tap interface to bridge 'onebr100': No such device
------------------------------------------------------------------------
于长江 |  东软
*From:* Andreas Calvo Gómez <mailto:andreas.ca...@scytl.com>
*Date:* 2012-11-30 20:33
*To:* yu...@neusoft.com <mailto:yu...@neusoft.com>
*CC:* users@lists.opennebula.org <mailto:users@lists.opennebula.org>
*Subject:* Re: help: with 8021q driver, network configuration won't work, after host reboot (???)
We've been using 802.1Q under CentOS 6 without problems for quite a long
time.
Can you post a detailed description of what is happening?
Thanks
On 30/11/12 07:57, users-requ...@lists.opennebula.org wrote:
>
> Message: 2
> Date: Fri, 30 Nov 2012 14:56:47 +0800
> From: ??? <yu...@neusoft.com>
> To: users <users@lists.opennebula.org>
> Subject: [one-users] help: with 8021q driver, network configuration
>  won't work after host reboot
> Message-ID: <201211301456470519...@neusoft.com>
> Content-Type: text/plain; charset="gb2312"
>
> As i said, with 8021q driver, network configuration won't work after host 
reboot. Does One notice this?
>
> Here is my solution for rhel below: (Is this ok?)
> # cat $ONE_LOCATION/var/remotes/vnm/802.1Q/HostManaged.rb
> require 'OpenNebulaNetwork'
> ...
> def create_bridge(bridge)
>      OpenNebula.exec_and_log_no_exit("#{COMMANDS[:brctl]} addbr #{bridge}")
>      OpenNebula.exec_and_log_no_exit("sudo sh -c 'echo brctl addbr #{bridge} >> 
/etc/rc.d/rc.local'")
> end
> ...
> def create_dev_vlan(dev, vlan)
>      OpenNebula.exec_and_log("#{COMMANDS[:vconfig]} add #{dev} #{vlan}")
>      OpenNebula.exec_and_log("sudo sh -c 'echo vconfig add #{dev} #{vlan} >> 
/etc/rc.d/rc.local'")
> end
> ...
> def attach_brigde_dev(bridge, dev, vlan=nil)
>      dev = "#{dev}.#{vlan}" if vlan
>      OpenNebula.exec_and_log("#{COMMANDS[:brctl]} addif #{bridge} #{dev}")
>      OpenNebula.exec_and_log("sudo sh -c 'echo brctl addif #{bridge} #{dev} >> 
/etc/rc.d/rc.local'")
> end
> ...
> def ifup(dev, vlan=nil)
>      dev = "#{dev}.#{vlan}" if vlan
>      OpenNebula.exec_and_log("#{COMMANDS[:ip]} link set #{dev} up")
>      OpenNebula.exec_and_log("sudo sh -c 'echo ip link set #{dev} up >> 
/etc/rc.d/rc.local'")
> end
> ...
>
>
>
>
> ??? |  ??
> 
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--
Andreas Calvo Gómez
Systems Engineer
Scytl Secure Electronic Voting
Plaça Gal·la Placidia, 1-3, 1st floor · 08006 Barcelona
Phone: + 34 934 230 324
Fax:   + 34 933 251 028
http://www.scytl.com
NOTICE: The information in this e-mail and in any of its attachments is
confidential and intended solely for the attention and use of the named
addressee(s). If you are not the intended recipient, any disclosure,
copying,
distribution or retaining of this message or any part of it, without the
prior
written consent of Scytl Secure Electronic Voting, SA is prohibited and
may be
unlawful. If you have received this in error, please contact the sender
and
delete the material from any computer.

---------------------------------------------------------------------------------------------------
Confidentiality Notice: The information contained in this e-mail and any accompanying attachment(s) is intended only for the use of the intended recipient and may be confidential and/or privileged of Neusoft Corporation, its subsidiaries and/or its affiliates. If any reader of this communication is not the intended recipient, unauthorized use, forwarding, printing, storing, disclosure or copying is strictly prohibited, and may be unlawful.If you have received this communication in error,please immediately notify the sender by return e-mail, and delete the original message and all copies from
your system. Thank you.
---------------------------------------------------------------------------------------------------


--
Andreas Calvo Gómez
Systems Engineer
Scytl Secure Electronic Voting
Plaça Gal·la Placidia, 1-3, 1st floor · 08006 Barcelona
Phone: + 34 934 230 324
Fax:   + 34 933 251 028
http://www.scytl.com

NOTICE: The information in this e-mail and in any of its attachments is
confidential and intended solely for the attention and use of the named
addressee(s). If you are not the intended recipient, any disclosure,
copying,
distribution or retaining of this message or any part of it, without the
prior
written consent of Scytl Secure Electronic Voting, SA is prohibited and
may be
unlawful. If you have received this in error, please contact the sender
and
delete the material from any computer.

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