[ 2240.364522][ T4057] br0: port 1(dummy0) entered blocking state
[ 2240.364746][ T4057] br0: port 1(dummy0) entered disabled state
[ 2240.364966][ T4057] dummy0: entered allmulticast mode
[ 2240.365944][ T4057] dummy0: entered promiscuous mode
[ 2240.396050][ T4058] br0: port 1(dummy0) entered blocking state
[ 2240.396372][ T4058] br0: port 1(dummy0) entered forwarding state
[ 2242.381174][   T68] dummy0: left allmulticast mode
[ 2242.382104][   T68] dummy0: left promiscuous mode
[ 2242.383641][   T68] br0: port 1(dummy0) entered disabled state