[ 2303.156088][T14260] br0: port 1(dummy0) entered blocking state
[ 2303.156443][T14260] br0: port 1(dummy0) entered disabled state
[ 2303.156784][T14260] dummy0: entered allmulticast mode
[ 2303.158386][T14260] dummy0: entered promiscuous mode
[ 2303.184754][T14261] br0: port 1(dummy0) entered blocking state
[ 2303.185351][T14261] br0: port 1(dummy0) entered forwarding state
[ 2305.683627][   T12] dummy0: left allmulticast mode
[ 2305.683949][   T12] dummy0: left promiscuous mode
[ 2305.684294][   T12] br0: port 1(dummy0) entered disabled state