[ 1969.457533][T24921] br0: port 1(dummy0) entered blocking state
[ 1969.457749][T24921] br0: port 1(dummy0) entered disabled state
[ 1969.457919][T24921] dummy0: entered allmulticast mode
[ 1969.458828][T24921] dummy0: entered promiscuous mode
[ 1969.489072][T24922] br0: port 1(dummy0) entered blocking state
[ 1969.489365][T24922] br0: port 1(dummy0) entered forwarding state
[ 1971.434826][   T70] dummy0: left allmulticast mode
[ 1971.434991][   T70] dummy0: left promiscuous mode
[ 1971.435210][   T70] br0: port 1(dummy0) entered disabled state