Hello Cam, The problem you described seems to be similar to the described in https://bugzilla.redhat.com/show_bug.cgi?id=1242227. The mentioned bug was fixed in one of the recent oVirt builds. The updated Ovirt code allows to mix networks (regardless of them being VM or non-VM) on a single NIC with the following conditions:
- not more than one non-VLAN network in conjunction with any number of VLANs - MTU of the VLAN networks have to be equal to that of a non-VLAN one if such exists So I'd advise you to update you oVirt to the latest build. Regards, Yevgeny On Tue, Oct 6, 2015 at 2:47 AM, Cam Wright <[email protected]> wrote: > Hi, > > I've just started building an oVirt farm as a replacement for our > existing infrastructure and I'm having issues configuring multiple > VLAN bridges with different MTUs. > > When I try to add a logical network with a VLAN tag + VM Network + MTU > 9000 to a bonded interface on my host with only the ovirtmgmt network > (MTU 1500, default) it throws up an error message and won't let me > continue, error message below: > > Cannot setup Networks. The following Logical Networks do not have the > same MTU value: ovirtmgmt(default), > net_bne_vlan10(9000). > > Eventually, I will want to add more logical networks with the default > MTU, so setting the ovirtmgmt MTU to 9000 is unfortunately not going > to solve my issue. > > This is something I can do in vanilla Linux networking where I set the > 802.3ad bond to be MTU 9000 and configure two different bridges off > that interface to 1500 and 9000, however this does not seem to be > possible in the oVirt web interface. > > I've dug through the Administration guide and feature requests and > there doesn't seem to be anything there around using different MTU > values for different logical networks. > > Has anyone been able to successfully do this? The > /etc/sysconfig/network-scripts and /var/lib/vdsm/persistence/netconf > files seem to get rewritten whenever the vdsm service does anything, > so I'm reluctant to edit them manually. > > The hosts were built using the hosted-engine installer on Fedora 22. > The engine is running Fedora 22 also, see below: > > [root@bne-ovirtengine01 ~]# cat /etc/redhat-release > Fedora release 22 (Twenty Two) > [root@bne-ovirtengine01 ~]# uname -r > 4.0.4-301.fc22.x86_64 > > oVirt Engine Version: 3.6.0-1.fc22 > > Any assistance would be appreciated. > > Cam Wright | Systems Administrator > CUTTINGEDGE > 90 Victoria St, West End, Brisbane, QLD, 4101 > T +61 7 3013 6222 > E [email protected] | W www.cuttingedge.com.au > > /SYD /BNE /MEL /TYO > _______________________________________________ > Users mailing list > [email protected] > http://lists.ovirt.org/mailman/listinfo/users >
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