[ 2157.511751][ T7641] br0: port 1(dummy0) entered blocking state
[ 2157.511959][ T7641] br0: port 1(dummy0) entered disabled state
[ 2157.512148][ T7641] dummy0: entered allmulticast mode
[ 2157.513069][ T7641] dummy0: entered promiscuous mode
[ 2157.540735][ T7642] br0: port 1(dummy0) entered blocking state
[ 2157.541109][ T7642] br0: port 1(dummy0) entered forwarding state
[ 2159.584819][   T68] dummy0: left allmulticast mode
[ 2159.584986][   T68] dummy0: left promiscuous mode
[ 2159.585356][   T68] br0: port 1(dummy0) entered disabled state