[ 2072.111030][T30848] br0: port 1(dummy0) entered blocking state
[ 2072.111324][T30848] br0: port 1(dummy0) entered disabled state
[ 2072.111594][T30848] dummy0: entered allmulticast mode
[ 2072.112703][T30848] dummy0: entered promiscuous mode
[ 2072.153303][T30849] br0: port 1(dummy0) entered blocking state
[ 2072.153929][T30849] br0: port 1(dummy0) entered forwarding state
[ 2074.615773][   T12] dummy0: left allmulticast mode
[ 2074.617580][   T12] dummy0: left promiscuous mode
[ 2074.617981][   T12] br0: port 1(dummy0) entered disabled state