[ 2436.938088][T12529] br0: port 1(dummy0) entered blocking state
[ 2436.938405][T12529] br0: port 1(dummy0) entered disabled state
[ 2436.938685][T12529] dummy0: entered allmulticast mode
[ 2436.939826][T12529] dummy0: entered promiscuous mode
[ 2436.979024][T12530] br0: port 1(dummy0) entered blocking state
[ 2436.979436][T12530] br0: port 1(dummy0) entered forwarding state
[ 2439.544593][   T12] dummy0: left allmulticast mode
[ 2439.545466][   T12] dummy0: left promiscuous mode
[ 2439.546062][   T12] br0: port 1(dummy0) entered disabled state