[ 2128.608164][T21803] br0: port 1(dummy0) entered blocking state
[ 2128.608369][T21803] br0: port 1(dummy0) entered disabled state
[ 2128.608549][T21803] dummy0: entered allmulticast mode
[ 2128.609598][T21803] dummy0: entered promiscuous mode
[ 2128.639268][T21804] br0: port 1(dummy0) entered blocking state
[ 2128.639550][T21804] br0: port 1(dummy0) entered forwarding state
[ 2130.656274][   T12] dummy0: left allmulticast mode
[ 2130.656653][   T12] dummy0: left promiscuous mode
[ 2130.656911][   T12] br0: port 1(dummy0) entered disabled state