[ 2881.969957] br0: port 1(dummy0) entered blocking state
[ 2881.969980] br0: port 1(dummy0) entered disabled state
[ 2881.970107] device dummy0 entered promiscuous mode
[ 2882.174361] br0: port 1(dummy0) entered blocking state
[ 2882.174374] br0: port 1(dummy0) entered forwarding state
[ 2882.620124] br0: port 1(dummy0) entered disabled state
[ 2882.778715] device dummy0 left promiscuous mode
[ 2882.778755] br0: port 1(dummy0) entered disabled state