[ 2052.969803][T23706] br0: port 1(dummy0) entered blocking state
[ 2052.970016][T23706] br0: port 1(dummy0) entered disabled state
[ 2052.970181][T23706] dummy0: entered allmulticast mode
[ 2052.971169][T23706] dummy0: entered promiscuous mode
[ 2053.002522][T23707] br0: port 1(dummy0) entered blocking state
[ 2053.002828][T23707] br0: port 1(dummy0) entered forwarding state
[ 2055.395609][   T70] dummy0: left allmulticast mode
[ 2055.396724][   T70] dummy0: left promiscuous mode
[ 2055.397109][   T70] br0: port 1(dummy0) entered disabled state