[ 1109.390720] amtg: left allmulticast mode
[ 1109.390768] amtg: left promiscuous mode
[ 1109.390819] br0: port 2(amtg) entered disabled state
[ 1109.491901] relay_src (unregistering): left allmulticast mode
[ 1109.492164] relay_gw (unregistering): left allmulticast mode
[ 1109.503853] amtr (unregistering): left allmulticast mode