[ovirt-users] Jumbo Frames

[Sven Kieske]

On 21/11/14 01:40, Phil Daws wrote:
> am really enjoying oVirt but have now hit an issue with iSCSI.  As there is only one NIC in the host I have had to enable an MTU of 9000 on ovirtmgmt.  Then have vNIC profiles on that interface which are using a custom hook for Openvswitch.  I have created a specific vLAN for iSCSI traffic and on the initiator and targets have set their respective interface MTUs to be 9000.  When I connect to a LUN it is timing out straight away with a 1011 error.  If I drop the MTU back to 1500 all works okay.  This is all fine on my other KVM, non-oVirt, system so am wondering if I have missed a step ?


There is a closed bug regarding differen MTU sizes
maybe it applies here as well?

https://bugzilla.redhat.com/show_bug.cgi?id=1071660

it was closed because of insufficient data

HTH

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Sven Kieske

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