[ 2256.361714][T25389] br0: port 1(dummy0) entered blocking state
[ 2256.362060][T25389] br0: port 1(dummy0) entered disabled state
[ 2256.362418][T25389] dummy0: entered allmulticast mode
[ 2256.363466][T25389] dummy0: entered promiscuous mode
[ 2256.396413][T25390] br0: port 1(dummy0) entered blocking state
[ 2256.397145][T25390] br0: port 1(dummy0) entered forwarding state
[ 2258.839183][   T12] dummy0: left allmulticast mode
[ 2258.839460][   T12] dummy0: left promiscuous mode
[ 2258.839777][   T12] br0: port 1(dummy0) entered disabled state