[ 2133.358115][ T1541] br0: port 1(dummy0) entered blocking state
[ 2133.358315][ T1541] br0: port 1(dummy0) entered disabled state
[ 2133.358487][ T1541] dummy0: entered allmulticast mode
[ 2133.359400][ T1541] dummy0: entered promiscuous mode
[ 2133.392643][ T1542] br0: port 1(dummy0) entered blocking state
[ 2133.393118][ T1542] br0: port 1(dummy0) entered forwarding state
[ 2135.133148][   T70] dummy0: left allmulticast mode
[ 2135.133314][   T70] dummy0: left promiscuous mode
[ 2135.133534][   T70] br0: port 1(dummy0) entered disabled state