[ 1791.575253][ T7581] br0: port 1(dummy0) entered blocking state
[ 1791.575429][ T7581] br0: port 1(dummy0) entered disabled state
[ 1791.575588][ T7581] dummy0: entered allmulticast mode
[ 1791.576783][ T7581] dummy0: entered promiscuous mode
[ 1791.590908][ T7582] br0: port 1(dummy0) entered blocking state
[ 1791.591061][ T7582] br0: port 1(dummy0) entered forwarding state
[ 1792.798329][   T68] dummy0: left allmulticast mode
[ 1792.798467][   T68] dummy0: left promiscuous mode
[ 1792.798627][   T68] br0: port 1(dummy0) entered disabled state