[ 1912.357094][T25920] br0: port 1(dummy0) entered blocking state
[ 1912.357276][T25920] br0: port 1(dummy0) entered disabled state
[ 1912.357435][T25920] dummy0: entered allmulticast mode
[ 1912.358503][T25920] dummy0: entered promiscuous mode
[ 1912.385778][T25921] br0: port 1(dummy0) entered blocking state
[ 1912.386103][T25921] br0: port 1(dummy0) entered forwarding state
[ 1914.247057][   T12] dummy0: left allmulticast mode
[ 1914.247727][   T12] dummy0: left promiscuous mode
[ 1914.248005][   T12] br0: port 1(dummy0) entered disabled state