[ 2015.181684][T26200] br0: port 1(dummy0) entered blocking state
[ 2015.183797][T26200] br0: port 1(dummy0) entered disabled state
[ 2015.183981][T26200] dummy0: entered allmulticast mode
[ 2015.184992][T26200] dummy0: entered promiscuous mode
[ 2015.207248][T26201] br0: port 1(dummy0) entered blocking state
[ 2015.207494][T26201] br0: port 1(dummy0) entered forwarding state
[ 2017.192992][   T12] dummy0: left allmulticast mode
[ 2017.193907][   T12] dummy0: left promiscuous mode
[ 2017.194143][   T12] br0: port 1(dummy0) entered disabled state