[ 2393.500386][T14749] br0: port 1(dummy0) entered blocking state
[ 2393.500699][T14749] br0: port 1(dummy0) entered disabled state
[ 2393.500981][T14749] dummy0: entered allmulticast mode
[ 2393.502011][T14749] dummy0: entered promiscuous mode
[ 2393.529278][T14750] br0: port 1(dummy0) entered blocking state
[ 2393.529583][T14750] br0: port 1(dummy0) entered forwarding state
[ 2396.041244][   T65] dummy0: left allmulticast mode
[ 2396.042185][   T65] dummy0: left promiscuous mode
[ 2396.042660][   T65] br0: port 1(dummy0) entered disabled state