[ 2067.789099][ T7494] br0: port 1(dummy0) entered blocking state
[ 2067.789336][ T7494] br0: port 1(dummy0) entered disabled state
[ 2067.789578][ T7494] dummy0: entered allmulticast mode
[ 2067.790682][ T7494] dummy0: entered promiscuous mode
[ 2067.813294][ T7495] br0: port 1(dummy0) entered blocking state
[ 2067.813604][ T7495] br0: port 1(dummy0) entered forwarding state
[ 2069.883211][   T71] dummy0: left allmulticast mode
[ 2069.883522][   T71] dummy0: left promiscuous mode
[ 2069.883734][   T71] br0: port 1(dummy0) entered disabled state