[ 1561.373667][ T9021] veth0: entered allmulticast mode
[ 1561.374048][ T9021] veth1: entered allmulticast mode
[ 1561.374364][ T9021] veth2: entered allmulticast mode
[ 1561.374678][ T9021] veth3: entered allmulticast mode
[ 1588.466802][ T9021] veth0: left allmulticast mode
[ 1588.467231][ T9021] veth1: left allmulticast mode
[ 1588.467583][ T9021] veth2: left allmulticast mode
[ 1588.467965][ T9021] veth3: left allmulticast mode