[ 1952.882968][ T5577] br0: port 1(dummy0) entered blocking state
[ 1952.883210][ T5577] br0: port 1(dummy0) entered disabled state
[ 1952.883441][ T5577] dummy0: entered allmulticast mode
[ 1952.884589][ T5577] dummy0: entered promiscuous mode
[ 1952.911728][ T5578] br0: port 1(dummy0) entered blocking state
[ 1952.912015][ T5578] br0: port 1(dummy0) entered forwarding state
[ 1954.966021][   T68] dummy0: left allmulticast mode
[ 1954.966369][   T68] dummy0: left promiscuous mode
[ 1954.966660][   T68] br0: port 1(dummy0) entered disabled state