[ 2132.465401][ T1143] br0: port 1(dummy0) entered blocking state
[ 2132.465635][ T1143] br0: port 1(dummy0) entered disabled state
[ 2132.466236][ T1143] dummy0: entered allmulticast mode
[ 2132.467297][ T1143] dummy0: entered promiscuous mode
[ 2132.490056][ T1144] br0: port 1(dummy0) entered blocking state
[ 2132.490287][ T1144] br0: port 1(dummy0) entered forwarding state
[ 2134.364655][   T69] dummy0: left allmulticast mode
[ 2134.365378][   T69] dummy0: left promiscuous mode
[ 2134.365690][   T69] br0: port 1(dummy0) entered disabled state