[ 2156.519428][T30545] br0: port 1(dummy0) entered blocking state
[ 2156.520052][T30545] br0: port 1(dummy0) entered disabled state
[ 2156.520228][T30545] dummy0: entered allmulticast mode
[ 2156.521703][T30545] dummy0: entered promiscuous mode
[ 2156.548733][T30546] br0: port 1(dummy0) entered blocking state
[ 2156.549406][T30546] br0: port 1(dummy0) entered forwarding state
[ 2158.480009][   T71] dummy0: left allmulticast mode
[ 2158.480218][   T71] dummy0: left promiscuous mode
[ 2158.480492][   T71] br0: port 1(dummy0) entered disabled state