[ 2157.340374][T14291] br0: port 1(dummy0) entered blocking state
[ 2157.340932][T14291] br0: port 1(dummy0) entered disabled state
[ 2157.341448][T14291] dummy0: entered allmulticast mode
[ 2157.343427][T14291] dummy0: entered promiscuous mode
[ 2157.372205][T14292] br0: port 1(dummy0) entered blocking state
[ 2157.372580][T14292] br0: port 1(dummy0) entered forwarding state
[ 2160.498945][   T12] dummy0: left allmulticast mode
[ 2160.500086][   T12] dummy0: left promiscuous mode
[ 2160.500416][   T12] br0: port 1(dummy0) entered disabled state