[ 2116.390733][ T4634] br0: port 1(dummy0) entered blocking state
[ 2116.390943][ T4634] br0: port 1(dummy0) entered disabled state
[ 2116.391121][ T4634] dummy0: entered allmulticast mode
[ 2116.392195][ T4634] dummy0: entered promiscuous mode
[ 2116.419743][ T4635] br0: port 1(dummy0) entered blocking state
[ 2116.420099][ T4635] br0: port 1(dummy0) entered forwarding state
[ 2118.305987][   T12] dummy0: left allmulticast mode
[ 2118.306168][   T12] dummy0: left promiscuous mode
[ 2118.306386][   T12] br0: port 1(dummy0) entered disabled state