Comment 6 for bug 1829245

This is a OpenNebula cluster. AFAICS all hosts are effected as soon as they run with the new versions. Hosts have different hardware but similar network configuration: 2 bonded NICs and a bridged interface to be used by VMs.

 Network setup on VH host
auto lo
iface lo inet loopback
#eth0 is manually configured, and slave to the "bond0" bonded NIC
auto eth0
iface eth0 inet manual
bond-master bond1
#eth1 ditto, thus creating a 2-link bond.
auto eth1
iface eth1 inet manual
bond-master bond1
# bond1 is the bonded NIC and can be used like any other normal NIC.
auto bond1
iface bond1 inet manual
# bond1 uses standard IEEE 802.3ad LACP bonding protocol
bond-mode 802.3ad
bond-miimon 100
bond-lacp-rate 1
bond-xmit-hash-policy layer3+4
bond-slaves eth0 eth1
# Bridged interface to be used by VMs
auto ipblsrvrs
iface ipblsrvrs inet static
  bridge_ports bond1
  address 172.20.4.106
  gateway 172.20.4.1
  netmask 255.255.252.0
  bridge_stp on
  bridge_fd 1
  bridge_hello 2
  bridge_maxage 12

# Guest XML created by OpenNebula looks like this:

<domain type='kvm' xmlns:qemu='http://libvirt.org/schemas/domain/qemu/1.0'>
 <name>one-1110</name>
 <vcpu><![CDATA[2]]></vcpu>
 <cputune>
  <shares>205</shares>
 </cputune>
 <memory>4194304</memory>
 <os>
  <type arch='x86_64'>hvm</type>
 </os>
 <cpu mode='host-passthrough'>
 </cpu>
 <devices>
  <emulator><![CDATA[/usr/bin/kvm]]></emulator>
  <disk type='file' device='disk'>
   <source file='/var/lib/one//datastores/101/1110/disk.0'/>
   <target dev='vda'/>
   <boot order='2'/>
   <driver name='qemu' type='raw' cache='writeback'/>
  </disk>
  <disk type='file' device='cdrom'>
   <source file='/var/lib/one//datastores/101/1110/disk.1'/>
   <target dev='hda'/>
   <readonly/>
   <driver name='qemu' type='raw'/>
  </disk>
  <interface type='bridge'>
   <source bridge='ipblsrvrs'/>
   <mac address='02:00:3d:86:51:7b'/>
   <target dev='one-1110-0'/>
   <boot order='1'/>
   <model type='virtio'/>
  </interface>
  <graphics type='vnc' listen='0.0.0.0' port='7010' passwd='secret'/>
 </devices>
 <features>
  <acpi/>
 </features>
 <devices><serial type='pty'><source path='/dev/pts/5'/><target port='0'/></serial><console type='pty' tty='/dev/pts/5'><source path='/dev/pts/5'/><target port='0'/></console></devices>
 <metadata>
  <system_datastore><![CDATA[/var/lib/one//datastores/101/1110]]> </system_datastore>
 </metadata>
</domain>