[ 1657.425290] br0: port 1(dummy0) entered blocking state
[ 1657.425331] br0: port 1(dummy0) entered disabled state
[ 1657.425366] dummy0: entered allmulticast mode
[ 1657.425414] dummy0: entered promiscuous mode
[ 1657.428167] br0: port 1(dummy0) entered blocking state
[ 1657.428229] br0: port 1(dummy0) entered forwarding state
[ 1657.604296] dummy0: left allmulticast mode
[ 1657.604323] dummy0: left promiscuous mode
[ 1657.604350] br0: port 1(dummy0) entered disabled state