[ 2113.450360][ T3389] br0: port 1(dummy0) entered blocking state
[ 2113.450536][ T3389] br0: port 1(dummy0) entered disabled state
[ 2113.450700][ T3389] dummy0: entered allmulticast mode
[ 2113.451835][ T3389] dummy0: entered promiscuous mode
[ 2113.474068][ T3390] br0: port 1(dummy0) entered blocking state
[ 2113.474439][ T3390] br0: port 1(dummy0) entered forwarding state
[ 2115.441178][   T70] dummy0: left allmulticast mode
[ 2115.442288][   T70] dummy0: left promiscuous mode
[ 2115.442566][   T70] br0: port 1(dummy0) entered disabled state