Description of problem: If you configure dummy network interfaces on a Fedora 19 host (e.g. dummy0, ...) they cannot be seen by OVirt. VDSM filters them out Version-Release number of selected component (if applicable): ovirt engine 3.3.1 ovirt hypervisor installed on Fedora 19 How reproducible: 100% Steps to Reproduce: permanently install dummy kernel module on Fedora 19 node restart Fedora 19 node Actual results: interface dummy0 does not show up in OVirt Expected results: interface dummy0 should be visible Additional info: Seems to be a bug that vdsm filters out dummy interfaces. Workaround for the bug is to modify /usr/lib64/python2.7/site-packages/vdsm/config.py. Replace 'fake_nics', 'dummy_*' with 'fake_nics', 'dummy*'
That's not a bug, it's a feature ;-) We do not want to fool Engine to think that these are true NICs, unless in special use cases. The configurational "fake_nics" was designed to allow you to add specific dummy devices which you'd like to report as real NICs. dummy_* are reported mostly because they are not common in real life, and they are used by our functional/networkTests suite. Could you explain your use case? I'm inclined to close this issue as NOTABUG.
I want to create a private network between two VMs that is not exposed to the real network infrastructure.
could be a dup, but changing title to make request clear.
Your easiest workaround would be to set the name of your dummy device to something that Vdsm reports, such as in sudo ip link add dummy_1 type dummy Another option is to use the new extnet Vdsm hook http://gerrit.ovirt.org/gitweb?p=vdsm.git;a=tree;f=vdsm_hooks/extnet;h=9866aa3279da4db3b006db2c80198762672fad7a;hb=35d5248af6fa0e6468e6232c52cfbb73d09d0562 The latter would give you more control on the nature of the VM connectivity.
And yes, this bug is a clone of bug 988285 for rhevm.
I will go with the ip link command. Modifying config.py seems to be no nice integration.
(In reply to Dan Kenigsberg from comment #5) > And yes, this bug is a clone of bug 988285 for rhevm. .. and since Vdsm can already create a bridged network with no physical nics, there's nothing much to do here. *** This bug has been marked as a duplicate of bug 988285 ***