[ 1796.523725] br0: port 1(dummy0) entered blocking state
[ 1796.523797] br0: port 1(dummy0) entered disabled state
[ 1796.523863] dummy0: entered allmulticast mode
[ 1796.523944] dummy0: entered promiscuous mode
[ 1796.527259] br0: port 1(dummy0) entered blocking state
[ 1796.527291] br0: port 1(dummy0) entered forwarding state
[ 1796.758769] dummy0: left allmulticast mode
[ 1796.758810] dummy0: left promiscuous mode
[ 1796.758838] br0: port 1(dummy0) entered disabled state