[ 2052.215424][ T5822] br0: port 1(dummy0) entered blocking state
[ 2052.215727][ T5822] br0: port 1(dummy0) entered disabled state
[ 2052.215998][ T5822] dummy0: entered allmulticast mode
[ 2052.217129][ T5822] dummy0: entered promiscuous mode
[ 2052.244469][ T5823] br0: port 1(dummy0) entered blocking state
[ 2052.245254][ T5823] br0: port 1(dummy0) entered forwarding state
[ 2054.697322][   T70] dummy0: left allmulticast mode
[ 2054.697834][   T70] dummy0: left promiscuous mode
[ 2054.698140][   T70] br0: port 1(dummy0) entered disabled state