[ 2076.501713][ T1399] br0: port 1(dummy0) entered blocking state
[ 2076.501907][ T1399] br0: port 1(dummy0) entered disabled state
[ 2076.502069][ T1399] dummy0: entered allmulticast mode
[ 2076.502991][ T1399] dummy0: entered promiscuous mode
[ 2076.532590][ T1400] br0: port 1(dummy0) entered blocking state
[ 2076.532764][ T1400] br0: port 1(dummy0) entered forwarding state
[ 2078.459116][   T70] dummy0: left allmulticast mode
[ 2078.459268][   T70] dummy0: left promiscuous mode
[ 2078.459474][   T70] br0: port 1(dummy0) entered disabled state