[ 1640.310329][ T8421] veth0: entered allmulticast mode
[ 1640.310944][ T8421] veth1: entered allmulticast mode
[ 1640.311273][ T8421] veth2: entered allmulticast mode
[ 1640.311614][ T8421] veth3: entered allmulticast mode
[ 1667.899724][ T8421] veth0: left allmulticast mode
[ 1667.900006][ T8421] veth1: left allmulticast mode
[ 1667.900230][ T8421] veth2: left allmulticast mode
[ 1667.900447][ T8421] veth3: left allmulticast mode