[  820.322331][T20480] veth0: entered allmulticast mode
[  820.322682][T20480] veth1: entered allmulticast mode
[  820.322903][T20480] veth2: entered allmulticast mode
[  820.323122][T20480] veth3: entered allmulticast mode
[  831.166514][T20480] veth0: left allmulticast mode
[  831.166750][T20480] veth1: left allmulticast mode
[  831.166923][T20480] veth2: left allmulticast mode
[  831.167102][T20480] veth3: left allmulticast mode