[ 2207.282324][T11076] br0: port 1(dummy0) entered blocking state
[ 2207.282558][T11076] br0: port 1(dummy0) entered disabled state
[ 2207.283163][T11076] dummy0: entered allmulticast mode
[ 2207.284262][T11076] dummy0: entered promiscuous mode
[ 2207.312978][T11077] br0: port 1(dummy0) entered blocking state
[ 2207.313236][T11077] br0: port 1(dummy0) entered forwarding state
[ 2209.686855][   T12] dummy0: left allmulticast mode
[ 2209.687961][   T12] dummy0: left promiscuous mode
[ 2209.688242][   T12] br0: port 1(dummy0) entered disabled state