[ 2342.262865][ T2479] br0: port 1(dummy0) entered blocking state
[ 2342.263238][ T2479] br0: port 1(dummy0) entered disabled state
[ 2342.263591][ T2479] dummy0: entered allmulticast mode
[ 2342.265364][ T2479] dummy0: entered promiscuous mode
[ 2342.296475][ T2480] br0: port 1(dummy0) entered blocking state
[ 2342.296887][ T2480] br0: port 1(dummy0) entered forwarding state
[ 2344.833495][   T12] dummy0: left allmulticast mode
[ 2344.835244][   T12] dummy0: left promiscuous mode
[ 2344.835722][   T12] br0: port 1(dummy0) entered disabled state