[ 2214.901064][T14520] br0: port 1(dummy0) entered blocking state
[ 2214.901305][T14520] br0: port 1(dummy0) entered disabled state
[ 2214.901532][T14520] dummy0: entered allmulticast mode
[ 2214.902517][T14520] dummy0: entered promiscuous mode
[ 2214.937436][T14521] br0: port 1(dummy0) entered blocking state
[ 2214.937630][T14521] br0: port 1(dummy0) entered forwarding state
[ 2217.410802][   T12] dummy0: left allmulticast mode
[ 2217.410998][   T12] dummy0: left promiscuous mode
[ 2217.411251][   T12] br0: port 1(dummy0) entered disabled state