[ 1887.408026] br0: port 1(dummy0) entered blocking state
[ 1887.408070] br0: port 1(dummy0) entered disabled state
[ 1887.408106] dummy0: entered allmulticast mode
[ 1887.408169] dummy0: entered promiscuous mode
[ 1887.412036] br0: port 1(dummy0) entered blocking state
[ 1887.412098] br0: port 1(dummy0) entered forwarding state
[ 1887.680004] dummy0: left allmulticast mode
[ 1887.680048] dummy0: left promiscuous mode
[ 1887.680076] br0: port 1(dummy0) entered disabled state