[ 1661.286026] br0: port 1(dummy0) entered blocking state
[ 1661.286063] br0: port 1(dummy0) entered disabled state
[ 1661.286099] dummy0: entered allmulticast mode
[ 1661.286149] dummy0: entered promiscuous mode
[ 1661.288741] br0: port 1(dummy0) entered blocking state
[ 1661.288778] br0: port 1(dummy0) entered forwarding state
[ 1661.463248] dummy0: left allmulticast mode
[ 1661.463281] dummy0: left promiscuous mode
[ 1661.463380] br0: port 1(dummy0) entered disabled state