[ 1635.142169] br0: port 1(dummy0) entered blocking state
[ 1635.142212] br0: port 1(dummy0) entered disabled state
[ 1635.142253] dummy0: entered allmulticast mode
[ 1635.142301] dummy0: entered promiscuous mode
[ 1635.145080] br0: port 1(dummy0) entered blocking state
[ 1635.145144] br0: port 1(dummy0) entered forwarding state
[ 1635.324841] dummy0: left allmulticast mode
[ 1635.324931] dummy0: left promiscuous mode
[ 1635.324993] br0: port 1(dummy0) entered disabled state