[ 2228.108916][T20304] veth0: entered allmulticast mode
[ 2228.109723][T20304] veth1: entered allmulticast mode
[ 2228.113343][T20304] veth2: entered allmulticast mode
[ 2228.114011][T20304] veth3: entered allmulticast mode
[ 2251.213277][T20304] veth0: left allmulticast mode
[ 2251.214157][T20304] veth1: left allmulticast mode
[ 2251.214885][T20304] veth2: left allmulticast mode
[ 2251.215612][T20304] veth3: left allmulticast mode