[ 2140.587326][ T1023] br0: port 1(dummy0) entered blocking state
[ 2140.587530][ T1023] br0: port 1(dummy0) entered disabled state
[ 2140.587694][ T1023] dummy0: entered allmulticast mode
[ 2140.588603][ T1023] dummy0: entered promiscuous mode
[ 2140.622179][ T1024] br0: port 1(dummy0) entered blocking state
[ 2140.622397][ T1024] br0: port 1(dummy0) entered forwarding state
[ 2143.014130][   T68] dummy0: left allmulticast mode
[ 2143.014935][   T68] dummy0: left promiscuous mode
[ 2143.015175][   T68] br0: port 1(dummy0) entered disabled state