[Users] vlan on mgmt network

Itamar Heim iheim at redhat.com
Fri Jan 17 23:15:34 UTC 2014


On 01/18/2014 01:07 AM, William Kwan wrote:
> I'm sorry. This seems to be getting too long from a possible confused
> user =)
> Yes, I followed the step and it works as expected. However I want to
> have VMs able to reach the mgmt network.
>
> let's make it simpler.
> eth0 - mgmt network, untagged, this is where I ssh to systems
> eth1 - some other subnet
>
> I have two nodes built and setup with ovirt.  They run fine.  ovirtmgmt
> runs on eth0
> But I want to have a VM able reach to both
>      - mgmt network on eth0
>      - vlanX on eth0
>
> That's why I was testing different things
> I added eth0.X for  VLAN X under the OS, but it won't show up under oVirt.
> I can add more physical interface to separate the traffic
>      1. subnet for ovirt
>      2. subnet for management traffic
>      3. subnet for whatever subnet VM reach out to
>
> W

this may sound weird, but why does the mgmt network has to be untagged?
you could just have mgmt network in a vlan as well?

>
>
> On Friday, January 17, 2014 5:27 PM, Itamar Heim <iheim at redhat.com> wrote:
> On 01/16/2014 08:35 PM, Assaf Muller wrote:
>  > Ok so if you want to set the management network (untagged) and VM
> networks (tagged) on the same bond,
>  > then the management network has to be non-VM. IE: You won't be able
> to connect instances to the management
>  > network.
>
> William - did this work for you followin assaf steps below? you don't
> need to change anything at host level, all should be done from the webadmin
>
>  >
>  >
>  > Assaf Muller, Cloud Networking Engineer
>  > Red Hat
>  >
>  > ----- Original Message -----
>  > From: "William Kwan" <potatok at yahoo.com <mailto:potatok at yahoo.com>>
>  > To: "Assaf Muller" <amuller at redhat.com <mailto:amuller at redhat.com>>
>  > Cc: users at ovirt.org <mailto:users at ovirt.org>, "Christian Hernandez"
> <christianh at 4over.com <mailto:christianh at 4over.com>>
>  > Sent: Thursday, January 16, 2014 7:59:46 PM
>  > Subject: Re: [Users] vlan on mgmt network
>  >
>  > Assaf,
>  >
>  > Thanks a lot.  Will I be able to mix tagged and untagged traffic?
>  >
>  > Example:
>  > - bond0 on my two systems are on the management network, untagged
>  > - my VMs all have one connection to this management network
>  > - I want to setup a new VM with two interfaces, one on the management
> network, one on the tagged VLAN
>  >
>  >
>  > This will work it out?
>  > Thanks
>  > Will
>  >
>  >
>  >
>  >
>  > On Thursday, January 16, 2014 12:26 PM, Assaf Muller
> <amuller at redhat.com <mailto:amuller at redhat.com>> wrote:
>  >
>  > You can make ovirtmgmt a non-VM, untagged (non-VLAN) network, then place
>  > as many VM, tagged networks as you'd like on the same NIC or bond.
>  >
>  > Here's a working upgrade procedure:
>  > 1) Edit ovirtmgmt, mark it as non-VM.
>  > 2) Go to all hosts using this network, select Setup Host Networks.
> You'll see that
>  >    ovirtmgmt is out of sync. Edit the network and mark sync. Hit ok
> on the dialog of course :)
>  >    Step 2 will be done for you automatically when you edit logical
> networks in oVirt 3.4
>  > 3) Create VM, VLAN networks
>  > 4) Go to all hosts you wish to place those networks, and drag the new
> VLAN networks on
>  >    bond0.
>  >
>  > You don't need to do any prep work on your hosts before this
> procedure. oVirt will take care
>  > of this stuff for you.
>  >
>  >
>  > Assaf Muller, Cloud Networking Engineer
>  > Red Hat
>  >
>  > ----- Original Message -----
>  > From: "Christian Hernandez" <christianh at 4over.com
> <mailto:christianh at 4over.com>>
>  > To: "William Kwan" <potatok at yahoo.com <mailto:potatok at yahoo.com>>
>  > Cc: users at ovirt.org <mailto:users at ovirt.org>
>  > Sent: Thursday, January 16, 2014 6:36:49 PM
>  > Subject: Re: [Users] vlan on mgmt network
>  >
>  > Assuming it's on the same VLAN...
>  >
>  > I would make the subinterface (i.e. bond0.1)
>  >
>  >
>  > Thank you,
>  >
>  > Christian Hernandez
>  > 1225 Los Angeles Street
>  > Glendale, CA 91204
>  > Phone: 877-782-2737 ext. 4566
>  > Fax: 818-265-3152
>  > christianh at 4over.com <mailto:christianh at 4over.com> <mailto:
> christianh at 4over.com <mailto:christianh at 4over.com> >
>  > www.4over.com < http://www.4over.com <http://www.4over.com/>>
>  >
>  >
>  > On Thu, Jan 16, 2014 at 8:31 AM, William Kwan < potatok at yahoo.com
> <mailto:potatok at yahoo.com> > wrote:
>  >
>  >
>  >
>  > Hi all,
>  >
>  > CentOS 6.5 and oVirt 3.3
>  >
>  > Let's say I have bond0 (eth0 and eth1) on a management network.
>  > Logical network ovirtmgmt is set and working on top of Interfaces bond0.
>  >
>  > Is it possible to have another Logical network, e.g. ovirt777, on the
> same Interface bond0?
>  >
>  > Or I should add a virtual interface, e.g. bond0.1, tie it to VLAN 777
> and create logical network with this virtual interface?
>  >
>  > Wil
>  >
>  >
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