[ 1775.569796] br0: port 1(dummy0) entered blocking state
[ 1775.569841] br0: port 1(dummy0) entered disabled state
[ 1775.569879] dummy0: entered allmulticast mode
[ 1775.569926] dummy0: entered promiscuous mode
[ 1775.573528] br0: port 1(dummy0) entered blocking state
[ 1775.573589] br0: port 1(dummy0) entered forwarding state
[ 1775.846999] dummy0: left allmulticast mode
[ 1775.847035] dummy0: left promiscuous mode
[ 1775.847068] br0: port 1(dummy0) entered disabled state