[ 2202.365447][T24697] br0: port 1(dummy0) entered blocking state
[ 2202.365685][T24697] br0: port 1(dummy0) entered disabled state
[ 2202.365927][T24697] dummy0: entered allmulticast mode
[ 2202.366859][T24697] dummy0: entered promiscuous mode
[ 2202.400266][T24698] br0: port 1(dummy0) entered blocking state
[ 2202.400451][T24698] br0: port 1(dummy0) entered forwarding state
[ 2204.503486][   T12] dummy0: left allmulticast mode
[ 2204.503692][   T12] dummy0: left promiscuous mode
[ 2204.504022][   T12] br0: port 1(dummy0) entered disabled state