Hi Strahil, On Tuesday, 10 December 2019 20:50:27 CET Strahil wrote: > Hi Pavel, > > Can you explain how did you find the issue. > > I'm new in OVN and I experience the same symptoms . > > I'm not sure what will be the best approach to start cleanly with OVN. > I am new to OVN / OpenVSwitch too. :) What helped me to begin with is capturing traffic on "ovirtmgmnt" interface using tcpdump and looking into it for packets related to data exchange between VMs over virtual network. I found communications over UDP:6081, which were fine by themselves. However, this helped to craft more targeted search requests which lead me to this discussion: https://lists.ovirt.org/archives/list/users@ovirt.org/thread/PVJJPK7MQOFL... Some suggestions there were helpful to at least become slightly more familiar with how the things work. Anyway, lack of documentation on this matter (I know that there are high-level old docs) does not help to resolve such cases.