[ 1996.096032][ T7866] br0: port 1(dummy0) entered blocking state
[ 1996.096231][ T7866] br0: port 1(dummy0) entered disabled state
[ 1996.096408][ T7866] dummy0: entered allmulticast mode
[ 1996.097650][ T7866] dummy0: entered promiscuous mode
[ 1996.118955][ T7867] br0: port 1(dummy0) entered blocking state
[ 1996.119200][ T7867] br0: port 1(dummy0) entered forwarding state
[ 1998.058554][   T70] dummy0: left allmulticast mode
[ 1998.058903][   T70] dummy0: left promiscuous mode
[ 1998.059175][   T70] br0: port 1(dummy0) entered disabled state