[    5.955822] br0: port 1(dummy0) entered blocking state
[    5.955933] br0: port 1(dummy0) entered disabled state
[    5.955999] dummy0: entered allmulticast mode
[    5.956087] dummy0: entered promiscuous mode
[    5.958745] br0: port 1(dummy0) entered blocking state
[    5.958781] br0: port 1(dummy0) entered forwarding state
[    6.151372] dummy0: left allmulticast mode
[    6.151414] dummy0: left promiscuous mode
[    6.151444] br0: port 1(dummy0) entered disabled state