[ 2099.225025][ T6038] br0: port 1(dummy0) entered blocking state
[ 2099.225498][ T6038] br0: port 1(dummy0) entered disabled state
[ 2099.225666][ T6038] dummy0: entered allmulticast mode
[ 2099.226662][ T6038] dummy0: entered promiscuous mode
[ 2099.255792][ T6039] br0: port 1(dummy0) entered blocking state
[ 2099.256533][ T6039] br0: port 1(dummy0) entered forwarding state
[ 2101.281134][   T12] dummy0: left allmulticast mode
[ 2101.281875][   T12] dummy0: left promiscuous mode
[ 2101.282137][   T12] br0: port 1(dummy0) entered disabled state