[ 1914.571511][T17022] br0: port 1(dummy0) entered blocking state
[ 1914.571692][T17022] br0: port 1(dummy0) entered disabled state
[ 1914.571854][T17022] dummy0: entered allmulticast mode
[ 1914.572812][T17022] dummy0: entered promiscuous mode
[ 1914.597868][T17023] br0: port 1(dummy0) entered blocking state
[ 1914.598094][T17023] br0: port 1(dummy0) entered forwarding state
[ 1916.594084][   T12] dummy0: left allmulticast mode
[ 1916.595128][   T12] dummy0: left promiscuous mode
[ 1916.595364][   T12] br0: port 1(dummy0) entered disabled state