[ 1719.905960] br0: port 1(dummy0) entered blocking state
[ 1719.906000] br0: port 1(dummy0) entered disabled state
[ 1719.906033] dummy0: entered allmulticast mode
[ 1719.906086] dummy0: entered promiscuous mode
[ 1719.908820] br0: port 1(dummy0) entered blocking state
[ 1719.908883] br0: port 1(dummy0) entered forwarding state
[ 1720.102096] dummy0: left allmulticast mode
[ 1720.102128] dummy0: left promiscuous mode
[ 1720.102160] br0: port 1(dummy0) entered disabled state