[ 2061.535238][ T2021] br0: port 1(dummy0) entered blocking state
[ 2061.535454][ T2021] br0: port 1(dummy0) entered disabled state
[ 2061.535642][ T2021] dummy0: entered allmulticast mode
[ 2061.536583][ T2021] dummy0: entered promiscuous mode
[ 2061.562161][ T2022] br0: port 1(dummy0) entered blocking state
[ 2061.562395][ T2022] br0: port 1(dummy0) entered forwarding state
[ 2063.938639][   T12] dummy0: left allmulticast mode
[ 2063.938852][   T12] dummy0: left promiscuous mode
[ 2063.939111][   T12] br0: port 1(dummy0) entered disabled state