[ 2155.473941][T10806] br0: port 1(dummy0) entered blocking state
[ 2155.474535][T10806] br0: port 1(dummy0) entered disabled state
[ 2155.474756][T10806] dummy0: entered allmulticast mode
[ 2155.475734][T10806] dummy0: entered promiscuous mode
[ 2155.498409][T10807] br0: port 1(dummy0) entered blocking state
[ 2155.498627][T10807] br0: port 1(dummy0) entered forwarding state
[ 2157.451479][   T70] dummy0: left allmulticast mode
[ 2157.451649][   T70] dummy0: left promiscuous mode
[ 2157.451865][   T70] br0: port 1(dummy0) entered disabled state