[ 1905.115852][T30640] br0: port 1(dummy0) entered blocking state
[ 1905.116041][T30640] br0: port 1(dummy0) entered disabled state
[ 1905.116214][T30640] dummy0: entered allmulticast mode
[ 1905.117091][T30640] dummy0: entered promiscuous mode
[ 1905.139537][T30641] br0: port 1(dummy0) entered blocking state
[ 1905.139713][T30641] br0: port 1(dummy0) entered forwarding state
[ 1907.140856][T27336] dummy0: left allmulticast mode
[ 1907.141086][T27336] dummy0: left promiscuous mode
[ 1907.141365][T27336] br0: port 1(dummy0) entered disabled state