[ 2221.545471][T15816] br0: port 1(dummy0) entered blocking state
[ 2221.545700][T15816] br0: port 1(dummy0) entered disabled state
[ 2221.545917][T15816] dummy0: entered allmulticast mode
[ 2221.547470][T15816] dummy0: entered promiscuous mode
[ 2221.577495][T15817] br0: port 1(dummy0) entered blocking state
[ 2221.577755][T15817] br0: port 1(dummy0) entered forwarding state
[ 2223.950864][   T12] dummy0: left allmulticast mode
[ 2223.951886][   T12] dummy0: left promiscuous mode
[ 2223.952131][   T12] br0: port 1(dummy0) entered disabled state